Advisory boundary-shape measurements
District compactness, without pretending it proves intent.
Compare Polsby–Popper and convex-hull ratios for official 2024 congressional and state legislative boundaries. Detailed measurements are checked against Census 1:500,000 geometry so resolution-sensitive shapes remain visible instead of becoming false precision.
Compactness is a descriptive screen, not a gerrymandering severity score.
Low values can reflect coastlines, islands, political subdivisions, communities of interest, legal requirements, or map resolution. They do not establish partisan intent, illegality, representational quality, fraud, or misconduct.
Comparable shape metrics
Official plan boundaries
Showing 7,101–7,200 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| IN · State Senate District 13GEOID 18013 · effective 2024-01-01 | State legislative upper chamber | 0.634500K: 0.634 | 0.899500K: 0.900 | 98.3middle or higher | stablePP difference 0.0% | 251.576 km2,471 vertices · 1 part · 0 holes |
| ME · State House District 57GEOID 23057 · effective 2024-01-01 | State legislative lower chamber | 0.634500K: 0.642 | 0.916500K: 0.916 | 97.3middle or higher | stablePP difference 1.2% | 59.388 km563 vertices · 1 part · 0 holes |
| IA · State House District 14GEOID 19014 · effective 2024-01-01 | State legislative lower chamber | 0.634500K: 0.640 | 0.911500K: 0.912 | 97.3middle or higher | stablePP difference 1.0% | 68.309 km569 vertices · 1 part · 0 holes |
| IN · State House District 34GEOID 18034 · effective 2024-01-01 | State legislative lower chamber | 0.634500K: 0.635 | 0.905500K: 0.905 | 97.3middle or higher | stablePP difference 0.2% | 45.837 km342 vertices · 1 part · 0 holes |
| OK · State House District 53GEOID 40053 · effective 2024-01-01 | State legislative lower chamber | 0.635500K: 0.635 | 0.940500K: 0.940 | 97.3middle or higher | stablePP difference 0.0% | 29.062 km391 vertices · 1 part · 0 holes |
| ND · State Senate District 5GEOID 38005 · effective 2024-01-01 | State legislative upper chamber | 0.636500K: 0.645 | 0.877500K: 0.879 | 98.3middle or higher | stablePP difference 1.4% | 19.164 km314 vertices · 1 part · 0 holes |
| ND · State House District 5GEOID 38005 · effective 2024-01-01 | State legislative lower chamber | 0.636500K: 0.645 | 0.877500K: 0.879 | 97.4middle or higher | stablePP difference 1.4% | 19.164 km314 vertices · 1 part · 0 holes |
| KS · State House District 104GEOID 20104 · effective 2024-01-01 | State legislative lower chamber | 0.636500K: 0.637 | 0.907500K: 0.907 | 97.4middle or higher | stablePP difference 0.1% | 91.025 km906 vertices · 1 part · 0 holes |
| FL · State Senate District 21GEOID 12021 · effective 2024-01-01 | State legislative upper chamber | 0.636500K: 0.175 | 0.886500K: 0.664 | 98.4middle or higher | resolution sensitivePP difference 72.5% | 183.234 km1,020 vertices · 1 part · 0 holes |
| NH · State House District Belknap 04GEOID 33004 · effective 2024-01-01 | State legislative lower chamber | 0.637500K: 0.642 | 0.910500K: 0.910 | 97.4middle or higher | stablePP difference 0.8% | 40.325 km587 vertices · 1 part · 0 holes |
| KS · State House District 87GEOID 20087 · effective 2024-01-01 | State legislative lower chamber | 0.638500K: 0.646 | 0.952500K: 0.952 | 97.4middle or higher | stablePP difference 1.1% | 26.916 km344 vertices · 1 part · 0 holes |
| VT · Windham-7 State House DistrictGEOID 50W-7 · effective 2024-01-01 | State legislative lower chamber | 0.640500K: 0.651 | 0.955500K: 0.957 | 97.5middle or higher | stablePP difference 1.7% | 33.214 km427 vertices · 1 part · 0 holes |
| NE · State Senate District 24GEOID 31024 · effective 2024-01-01 | State legislative upper chamber | 0.641500K: 0.643 | 0.888500K: 0.888 | 98.4middle or higher | stablePP difference 0.3% | 296.689 km2,769 vertices · 1 part · 0 holes |
| IN · State House District 56GEOID 18056 · effective 2024-01-01 | State legislative lower chamber | 0.642500K: 0.642 | 0.940500K: 0.940 | 97.5middle or higher | stablePP difference 0.0% | 146.9 km1,247 vertices · 1 part · 0 holes |
| HI · State House District 18GEOID 15018 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.444 | 0.936500K: 0.798 | 97.5middle or higher | resolution sensitivePP difference 30.9% | 47.471 km798 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 02GEOID 33502 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.645 | 0.911500K: 0.912 | 97.5middle or higher | stablePP difference 0.4% | 40.881 km513 vertices · 1 part · 0 holes |
| IA · State Senate District 13GEOID 19013 · effective 2024-01-01 | State legislative upper chamber | 0.643500K: 0.643 | 0.947500K: 0.947 | 98.5middle or higher | stablePP difference 0.1% | 301.341 km2,382 vertices · 1 part · 0 holes |
| IN · State House District 40GEOID 18040 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.646 | 0.917500K: 0.917 | 97.5middle or higher | stablePP difference 0.5% | 46.845 km542 vertices · 1 part · 0 holes |
| NH · State House District Rockingham 10GEOID 33710 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.646 | 0.893500K: 0.894 | 97.6middle or higher | stablePP difference 0.5% | 32.912 km417 vertices · 1 part · 0 holes |
| UT · State House District 24GEOID 49024 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.648 | 0.897500K: 0.898 | 97.6middle or higher | stablePP difference 0.7% | 18.758 km424 vertices · 1 part · 0 holes |
| FL · State House District 53GEOID 12053 · effective 2024-01-01 | State legislative lower chamber | 0.643500K: 0.425 | 0.881500K: 0.851 | 97.6middle or higher | resolution sensitivePP difference 34.0% | 165.671 km910 vertices · 1 part · 0 holes |
| FL · State House District 17GEOID 12017 · effective 2024-01-01 | State legislative lower chamber | 0.644500K: 0.647 | 0.923500K: 0.924 | 97.6middle or higher | stablePP difference 0.5% | 77.672 km727 vertices · 1 part · 0 holes |
| NH · State House District Rockingham 17GEOID 33717 · effective 2024-01-01 | State legislative lower chamber | 0.645500K: 0.698 | 0.949500K: 0.950 | 97.6middle or higher | stablePP difference 7.7% | 37.419 km838 vertices · 1 part · 0 holes |
| NE · State Senate District 49GEOID 31049 · effective 2024-01-01 | State legislative upper chamber | 0.645500K: 0.649 | 0.949500K: 0.950 | 98.5middle or higher | stablePP difference 0.6% | 38.368 km543 vertices · 1 part · 0 holes |
| VT · Windsor-2 State House DistrictGEOID 50Y-2 · effective 2024-01-01 | State legislative lower chamber | 0.645500K: 0.650 | 0.958500K: 0.960 | 97.7middle or higher | stablePP difference 0.7% | 66.746 km478 vertices · 1 part · 0 holes |
| IN · State Senate District 10GEOID 18010 · effective 2024-01-01 | State legislative upper chamber | 0.646500K: 0.647 | 0.917500K: 0.918 | 98.6middle or higher | stablePP difference 0.2% | 99.394 km1,062 vertices · 1 part · 0 holes |
| IN · State House District 27GEOID 18027 · effective 2024-01-01 | State legislative lower chamber | 0.646500K: 0.651 | 0.910500K: 0.910 | 97.7middle or higher | stablePP difference 0.6% | 41.553 km555 vertices · 1 part · 0 holes |
| HI · State House District 41GEOID 15041 · effective 2024-01-01 | State legislative lower chamber | 0.647500K: 0.341 | 0.891500K: 0.652 | 97.7middle or higher | resolution sensitivePP difference 47.3% | 59.728 km425 vertices · 1 part · 0 holes |
| SD · State Senate District 11GEOID 46011 · effective 2024-01-01 | State legislative upper chamber | 0.647500K: 0.658 | 0.926500K: 0.927 | 98.6middle or higher | stablePP difference 1.7% | 17.6 km247 vertices · 1 part · 0 holes |
| SD · State House District 11GEOID 46011 · effective 2024-01-01 | State legislative lower chamber | 0.647500K: 0.658 | 0.926500K: 0.927 | 97.7middle or higher | stablePP difference 1.7% | 17.6 km247 vertices · 1 part · 0 holes |
| AK · State House District 12GEOID 02012 · effective 2024-01-01 | State legislative lower chamber | 0.647500K: 0.653 | 0.933500K: 0.934 | 97.7middle or higher | stablePP difference 0.9% | 24.965 km322 vertices · 1 part · 0 holes |
| NH · State House District Sullivan 02GEOID 33902 · effective 2024-01-01 | State legislative lower chamber | 0.647500K: 0.656 | 0.904500K: 0.905 | 97.8middle or higher | stablePP difference 1.3% | 69.258 km855 vertices · 1 part · 0 holes |
| OH · Congressional District 14GEOID 3914 · effective 2024-01-01 | U.S. House | 0.649500K: 0.627 | 0.946500K: 0.913 | 99.3middle or higher | stablePP difference 3.4% | 441.408 km2,865 vertices · 1 part · 0 holes |
| FL · State Senate District 35GEOID 12035 · effective 2024-01-01 | State legislative upper chamber | 0.649500K: 0.651 | 0.942500K: 0.943 | 98.7middle or higher | stablePP difference 0.2% | 219 km1,029 vertices · 1 part · 0 holes |
| ME · State Senate District 7GEOID 23007 · effective 2024-01-01 | State legislative upper chamber | 0.650500K: 0.035 | 0.896500K: 0.573 | 98.7middle or higher | resolution sensitivePP difference 94.6% | 247.403 km1,309 vertices · 1 part · 0 holes |
| MT · State House District 73GEOID 30073 · effective 2024-01-01 | State legislative lower chamber | 0.650500K: 0.679 | 0.918500K: 0.917 | 97.8middle or higher | stablePP difference 4.3% | 13.153 km438 vertices · 1 part · 0 holes |
| VT · Caledonia-2 State House DistrictGEOID 50CA2 · effective 2024-01-01 | State legislative lower chamber | 0.650500K: 0.650 | 0.910500K: 0.910 | 97.8middle or higher | stablePP difference 0.0% | 67.189 km289 vertices · 1 part · 0 holes |
| FL · State House District 105GEOID 12105 · effective 2024-01-01 | State legislative lower chamber | 0.651500K: 0.651 | 0.942500K: 0.942 | 97.8middle or higher | stablePP difference 0.1% | 36.104 km796 vertices · 1 part · 0 holes |
| DC · Ward 5GEOID 11005 · effective 2024-01-01 | State legislative upper chamber | 0.651500K: 0.655 | 0.907500K: 0.909 | 98.8middle or higher | stablePP difference 0.7% | 22.758 km712 vertices · 1 part · 0 holes |
| NH · State House District Coos 05GEOID 33305 · effective 2024-01-01 | State legislative lower chamber | 0.651500K: 0.651 | 0.996500K: 0.997 | 97.8middle or higher | stablePP difference 0.0% | 55.7 km273 vertices · 1 part · 0 holes |
| AK · State House District 11GEOID 02011 · effective 2024-01-01 | State legislative lower chamber | 0.653500K: 0.656 | 0.969500K: 0.969 | 97.9middle or higher | stablePP difference 0.6% | 21.647 km353 vertices · 1 part · 0 holes |
| IA · State House District 52GEOID 19052 · effective 2024-01-01 | State legislative lower chamber | 0.653500K: 0.663 | 0.961500K: 0.961 | 97.9middle or higher | stablePP difference 1.6% | 87.494 km1,164 vertices · 1 part · 0 holes |
| PA · State House District 78GEOID 42078 · effective 2024-01-01 | State legislative lower chamber | 0.653500K: 0.656 | 0.912500K: 0.913 | 97.9middle or higher | stablePP difference 0.4% | 269.154 km2,344 vertices · 1 part · 0 holes |
| OK · State House District 65GEOID 40065 · effective 2024-01-01 | State legislative lower chamber | 0.654500K: 0.654 | 0.952500K: 0.952 | 97.9middle or higher | stablePP difference 0.1% | 258.784 km1,903 vertices · 1 part · 0 holes |
| VT · Bennington-Rutland State House DistrictGEOID 50B-R · effective 2024-01-01 | State legislative lower chamber | 0.654500K: 0.653 | 0.932500K: 0.931 | 98.0middle or higher | stablePP difference 0.1% | 94.51 km335 vertices · 1 part · 0 holes |
| DE · State Representative District 38GEOID 10038 · effective 2024-01-01 | State legislative lower chamber | 0.654500K: 0.570 | 0.945500K: 0.916 | 98.0middle or higher | stablePP difference 12.9% | 68.367 km889 vertices · 1 part · 0 holes |
| MI · State House District 88GEOID 26088 · effective 2024-01-01 | State legislative lower chamber | 0.655500K: 0.455 | 0.927500K: 0.815 | 98.0middle or higher | resolution sensitivePP difference 30.4% | 330.487 km1,114 vertices · 1 part · 0 holes |
| IN · State Senate District 12GEOID 18012 · effective 2024-01-01 | State legislative upper chamber | 0.655500K: 0.656 | 0.968500K: 0.968 | 98.8middle or higher | stablePP difference 0.2% | 110.914 km1,603 vertices · 1 part · 0 holes |
| HI · State House District 20GEOID 15020 · effective 2024-01-01 | State legislative lower chamber | 0.655500K: 0.544 | 0.950500K: 0.844 | 98.0middle or higher | resolution sensitivePP difference 17.0% | 32.548 km312 vertices · 1 part · 0 holes |
| FL · State House District 55GEOID 12055 · effective 2024-01-01 | State legislative lower chamber | 0.655500K: 0.656 | 0.916500K: 0.916 | 98.0middle or higher | stablePP difference 0.2% | 124.007 km1,240 vertices · 1 part · 0 holes |
| MN · State Senate District 62GEOID 27062 · effective 2024-01-01 | State legislative upper chamber | 0.655500K: 0.658 | 0.907500K: 0.908 | 98.9middle or higher | stablePP difference 0.5% | 18.272 km240 vertices · 1 part · 0 holes |
| NH · State House District Strafford 10GEOID 33810 · effective 2024-01-01 | State legislative lower chamber | 0.656500K: 0.657 | 0.904500K: 0.905 | 98.0middle or higher | stablePP difference 0.3% | 35.032 km373 vertices · 1 part · 0 holes |
| OK · State Senate District 29GEOID 40029 · effective 2024-01-01 | State legislative upper chamber | 0.656500K: 0.657 | 0.933500K: 0.933 | 98.9middle or higher | stablePP difference 0.2% | 256.947 km2,244 vertices · 1 part · 0 holes |
| MI · State House District 36GEOID 26036 · effective 2024-01-01 | State legislative lower chamber | 0.658500K: 0.660 | 0.979500K: 0.980 | 98.1middle or higher | stablePP difference 0.4% | 206.633 km853 vertices · 1 part · 0 holes |
| KS · State House District 4GEOID 20004 · effective 2024-01-01 | State legislative lower chamber | 0.658500K: 0.659 | 0.967500K: 0.967 | 98.1middle or higher | stablePP difference 0.1% | 241.664 km1,590 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 08GEOID 33508 · effective 2024-01-01 | State legislative lower chamber | 0.659500K: 0.673 | 0.916500K: 0.922 | 98.1middle or higher | stablePP difference 2.1% | 10.19 km325 vertices · 1 part · 0 holes |
| FL · State Senate District 5GEOID 12005 · effective 2024-01-01 | State legislative upper chamber | 0.659500K: 0.660 | 0.871500K: 0.871 | 99.0middle or higher | stablePP difference 0.2% | 110.768 km1,065 vertices · 1 part · 0 holes |
| UT · State House District 36GEOID 49036 · effective 2024-01-01 | State legislative lower chamber | 0.659500K: 0.663 | 0.939500K: 0.940 | 98.1middle or higher | stablePP difference 0.5% | 19.781 km393 vertices · 1 part · 0 holes |
| WI · Assembly District 72GEOID 55072 · effective 2024-01-01 | State legislative lower chamber | 0.659500K: 0.664 | 0.936500K: 0.936 | 98.2middle or higher | stablePP difference 0.7% | 234.922 km2,242 vertices · 1 part · 0 holes |
| MT · State House District 19GEOID 30019 · effective 2024-01-01 | State legislative lower chamber | 0.660500K: 0.676 | 0.894500K: 0.897 | 98.2middle or higher | stablePP difference 2.4% | 10.943 km436 vertices · 1 part · 0 holes |
| MA · Second Bristol and Plymouth DistrictGEOID 25D38 · effective 2024-01-01 | State legislative upper chamber | 0.660500K: 0.232 | 0.916500K: 0.713 | 99.0middle or higher | resolution sensitivePP difference 64.8% | 107.218 km802 vertices · 1 part · 0 holes |
| CT · State House District 150GEOID 09150 · effective 2024-01-01 | State legislative lower chamber | 0.661500K: 0.222 | 0.942500K: 0.586 | 98.2middle or higher | resolution sensitivePP difference 66.4% | 35.533 km592 vertices · 1 part · 0 holes |
| VT · Windsor-Orange-1 State House DistrictGEOID 50YO1 · effective 2024-01-01 | State legislative lower chamber | 0.662500K: 0.663 | 0.974500K: 0.974 | 98.2middle or higher | stablePP difference 0.1% | 64.859 km318 vertices · 1 part · 0 holes |
| KS · State House District 112GEOID 20112 · effective 2024-01-01 | State legislative lower chamber | 0.663500K: 0.663 | 0.919500K: 0.919 | 98.2middle or higher | stablePP difference 0.1% | 193.462 km792 vertices · 1 part · 0 holes |
| SD · State Senate District 15GEOID 46015 · effective 2024-01-01 | State legislative upper chamber | 0.663500K: 0.665 | 0.916500K: 0.916 | 99.1middle or higher | stablePP difference 0.3% | 28.166 km265 vertices · 1 part · 0 holes |
| SD · State House District 15GEOID 46015 · effective 2024-01-01 | State legislative lower chamber | 0.663500K: 0.665 | 0.916500K: 0.916 | 98.3middle or higher | stablePP difference 0.3% | 28.166 km265 vertices · 1 part · 0 holes |
| AK · State House District 10GEOID 02010 · effective 2024-01-01 | State legislative lower chamber | 0.663500K: 0.535 | 0.955500K: 0.861 | 98.3middle or higher | stablePP difference 19.4% | 36.23 km280 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 01GEOID 33501 · effective 2024-01-01 | State legislative lower chamber | 0.664500K: 0.674 | 0.917500K: 0.917 | 98.3middle or higher | stablePP difference 1.6% | 36.282 km455 vertices · 1 part · 0 holes |
| VT · Rutland-5 State House DistrictGEOID 50R-5 · effective 2024-01-01 | State legislative lower chamber | 0.664500K: 0.670 | 0.917500K: 0.918 | 98.3middle or higher | stablePP difference 0.9% | 9.735 km159 vertices · 1 part · 0 holes |
| IN · State House District 29GEOID 18029 · effective 2024-01-01 | State legislative lower chamber | 0.665500K: 0.667 | 0.931500K: 0.931 | 98.3middle or higher | stablePP difference 0.4% | 49.384 km543 vertices · 1 part · 0 holes |
| KS · State House District 75GEOID 20075 · effective 2024-01-01 | State legislative lower chamber | 0.667500K: 0.667 | 0.950500K: 0.950 | 98.4middle or higher | stablePP difference 0.1% | 191.698 km1,292 vertices · 1 part · 0 holes |
| ME · State House District 34GEOID 23034 · effective 2024-01-01 | State legislative lower chamber | 0.667500K: 0.670 | 0.990500K: 0.990 | 98.4middle or higher | stablePP difference 0.5% | 60.835 km551 vertices · 1 part · 0 holes |
| NH · State House District Grafton 16GEOID 33416 · effective 2024-01-01 | State legislative lower chamber | 0.667500K: 0.668 | 0.923500K: 0.924 | 98.4middle or higher | stablePP difference 0.1% | 45.829 km393 vertices · 1 part · 0 holes |
| VT · Chittenden-4 State House DistrictGEOID 50C-4 · effective 2024-01-01 | State legislative lower chamber | 0.668500K: 0.669 | 0.948500K: 0.948 | 98.4middle or higher | stablePP difference 0.2% | 42.733 km394 vertices · 1 part · 0 holes |
| KS · State House District 71GEOID 20071 · effective 2024-01-01 | State legislative lower chamber | 0.668500K: 0.680 | 0.960500K: 0.961 | 98.4middle or higher | stablePP difference 1.7% | 86.578 km1,195 vertices · 1 part · 0 holes |
| FL · State Senate District 22GEOID 12022 · effective 2024-01-01 | State legislative upper chamber | 0.669500K: 0.649 | 0.919500K: 0.919 | 99.1middle or higher | stablePP difference 3.0% | 236.005 km1,252 vertices · 1 part · 0 holes |
| WI · Assembly District 67GEOID 55067 · effective 2024-01-01 | State legislative lower chamber | 0.669500K: 0.670 | 0.954500K: 0.954 | 98.5middle or higher | stablePP difference 0.1% | 253.525 km1,294 vertices · 1 part · 0 holes |
| DE · State Representative District 12GEOID 10012 · effective 2024-01-01 | State legislative lower chamber | 0.671500K: 0.680 | 0.937500K: 0.938 | 98.5middle or higher | stablePP difference 1.3% | 40.822 km1,629 vertices · 1 part · 0 holes |
| UT · State House District 30GEOID 49030 · effective 2024-01-01 | State legislative lower chamber | 0.671500K: 0.671 | 0.957500K: 0.957 | 98.5middle or higher | stablePP difference 0.1% | 17.771 km426 vertices · 1 part · 0 holes |
| IN · State House District 58GEOID 18058 · effective 2024-01-01 | State legislative lower chamber | 0.672500K: 0.675 | 0.956500K: 0.956 | 98.5middle or higher | stablePP difference 0.5% | 58.462 km710 vertices · 1 part · 0 holes |
| KS · State House District 95GEOID 20095 · effective 2024-01-01 | State legislative lower chamber | 0.673500K: 0.676 | 0.878500K: 0.880 | 98.5middle or higher | stablePP difference 0.4% | 20.395 km219 vertices · 1 part · 0 holes |
| NY · Assembly District 59GEOID 36059 · effective 2024-01-01 | State legislative lower chamber | 0.673500K: 0.618 | 0.918500K: 0.888 | 98.6middle or higher | stablePP difference 8.2% | 32.059 km199 vertices · 1 part · 0 holes |
| MN · State House District 42BGEOID 2742B · effective 2024-01-01 | State legislative lower chamber | 0.674500K: 0.690 | 0.951500K: 0.951 | 98.6middle or higher | stablePP difference 2.3% | 28.792 km393 vertices · 1 part · 0 holes |
| NY · State Senate District 38GEOID 36038 · effective 2024-01-01 | State legislative upper chamber | 0.675500K: 0.677 | 0.955500K: 0.956 | 99.2middle or higher | stablePP difference 0.3% | 89.905 km847 vertices · 1 part · 0 holes |
| ME · State House District 20GEOID 23020 · effective 2024-01-01 | State legislative lower chamber | 0.676500K: 0.685 | 0.954500K: 0.955 | 98.6middle or higher | stablePP difference 1.4% | 27.05 km364 vertices · 1 part · 0 holes |
| IA · State House District 24GEOID 19024 · effective 2024-01-01 | State legislative lower chamber | 0.676500K: 0.677 | 0.937500K: 0.937 | 98.6middle or higher | stablePP difference 0.1% | 303.341 km2,457 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 33GEOID 33533 · effective 2024-01-01 | State legislative lower chamber | 0.679500K: 0.681 | 0.976500K: 0.977 | 98.7middle or higher | stablePP difference 0.3% | 50.867 km366 vertices · 1 part · 0 holes |
| MI · State House District 95GEOID 26095 · effective 2024-01-01 | State legislative lower chamber | 0.680500K: 0.680 | 0.946500K: 0.946 | 98.7middle or higher | stablePP difference 0.0% | 172.576 km549 vertices · 1 part · 0 holes |
| NY · Assembly District 130GEOID 36130 · effective 2024-01-01 | State legislative lower chamber | 0.681500K: 0.523 | 0.924500K: 0.856 | 98.7middle or higher | resolution sensitivePP difference 23.2% | 277.286 km1,102 vertices · 1 part · 0 holes |
| FL · State House District 13GEOID 12013 · effective 2024-01-01 | State legislative lower chamber | 0.681500K: 0.696 | 0.927500K: 0.927 | 98.7middle or higher | stablePP difference 2.1% | 67.919 km1,040 vertices · 1 part · 0 holes |
| FL · State Senate District 33GEOID 12033 · effective 2024-01-01 | State legislative upper chamber | 0.683500K: 0.143 | 0.939500K: 0.628 | 99.2middle or higher | resolution sensitivePP difference 79.0% | 228.359 km1,201 vertices · 1 part · 0 holes |
| FL · State House District 56GEOID 12056 · effective 2024-01-01 | State legislative lower chamber | 0.685500K: 0.286 | 0.944500K: 0.627 | 98.7middle or higher | resolution sensitivePP difference 58.3% | 106.551 km693 vertices · 1 part · 0 holes |
| KY · State House District 58GEOID 21058 · effective 2024-01-01 | State legislative lower chamber | 0.686500K: 0.694 | 0.937500K: 0.937 | 98.8middle or higher | stablePP difference 1.1% | 133.581 km1,501 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 35GEOID 33535 · effective 2024-01-01 | State legislative lower chamber | 0.686500K: 0.698 | 0.950500K: 0.950 | 98.8middle or higher | stablePP difference 1.6% | 39.106 km534 vertices · 1 part · 0 holes |
| IA · State Senate District 29GEOID 19029 · effective 2024-01-01 | State legislative upper chamber | 0.688500K: 0.689 | 0.945500K: 0.945 | 99.3middle or higher | stablePP difference 0.1% | 303.087 km1,633 vertices · 1 part · 0 holes |
| RI · State House District 59GEOID 44059 · effective 2024-01-01 | State legislative lower chamber | 0.691500K: 0.700 | 0.948500K: 0.949 | 98.8middle or higher | stablePP difference 1.3% | 8.064 km141 vertices · 1 part · 0 holes |
| NH · State House District Strafford 04GEOID 33804 · effective 2024-01-01 | State legislative lower chamber | 0.692500K: 0.692 | 0.991500K: 0.992 | 98.8middle or higher | stablePP difference 0.0% | 68.456 km704 vertices · 1 part · 0 holes |
| RI · State House District 50GEOID 44050 · effective 2024-01-01 | State legislative lower chamber | 0.695500K: 0.715 | 0.945500K: 0.948 | 98.8middle or higher | stablePP difference 2.9% | 11.576 km310 vertices · 1 part · 0 holes |
| ME · State House District 5GEOID 23005 · effective 2024-01-01 | State legislative lower chamber | 0.695500K: 0.694 | 0.999500K: 1.000 | 98.8middle or higher | stablePP difference 0.1% | 60.196 km163 vertices · 1 part · 0 holes |
| CO · State Senate District 3GEOID 08003 · effective 2024-01-01 | State legislative upper chamber | 0.695500K: 0.696 | 0.924500K: 0.924 | 99.3middle or higher | stablePP difference 0.1% | 334.894 km1,302 vertices · 1 part · 0 holes |
How the measures work
Two measures, one stability guard.
- Polsby–Popper
- 4π × area ÷ perimeter². A circle approaches 1. Coastline and boundary detail can sharply increase perimeter.
- Convex-hull ratio
- District area divided by its local equal-area convex hull. Disconnected or deeply concave shapes score lower.
- Resolution guard
- Detailed and 1:500,000 values are labeled stable only when their relative differences stay within 20% and 10%, respectively.
Election-result boundary
Outcome relationships are not calculated yet.
The repository does not yet contain a nationwide certified, same-plan-vintage district result set. Compactness is not joined to election outcomes across mismatched plans or geography.
That guard prevents district results from being compared against a different plan vintage or geography.
Source provenance
U.S. Census Bureau TIGERweb
Six retained and hash-pinned GeoJSON collections cover detailed and generalized versions of each district type.
- congressional · detailed 444 source features
- congressional · generalized 500k 441 source features
- state upper · detailed 1,964 source features
- state upper · generalized 500k 1,960 source features
- state lower · detailed 4,879 source features
- state lower · generalized 500k 4,874 source features