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 5,501–5,600 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| NY · Assembly District 92GEOID 36092 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.445 | 0.840500K: 0.840 | 73.5middle or higher | stablePP difference 5.1% | 72.278 km2,545 vertices · 1 part · 0 holes |
| WY · State House District 20GEOID 56020 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.427 | 0.810500K: 0.810 | 73.6middle or higher | stablePP difference 1.2% | 642.765 km3,406 vertices · 1 part · 0 holes |
| OK · State House District 48GEOID 40048 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.426 | 0.817500K: 0.817 | 73.6middle or higher | stablePP difference 0.8% | 262.842 km3,238 vertices · 1 part · 0 holes |
| WV · Delegate District 28GEOID 54028 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.437 | 0.821500K: 0.822 | 73.6middle or higher | stablePP difference 3.3% | 107.027 km3,343 vertices · 1 part · 0 holes |
| MO · State House District 23GEOID 29023 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.440 | 0.827500K: 0.829 | 73.6middle or higher | stablePP difference 4.2% | 27.349 km400 vertices · 1 part · 0 holes |
| PA · State House District 1GEOID 42001 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.415 | 0.872500K: 0.760 | 73.7middle or higher | resolution sensitivePP difference 1.7% | 243.094 km3,110 vertices · 1 part · 0 holes |
| OH · State House District 3GEOID 39003 · effective 2024-01-01 | State legislative lower chamber | 0.422500K: 0.457 | 0.863500K: 0.864 | 73.7middle or higher | stablePP difference 7.6% | 42.176 km900 vertices · 1 part · 0 holes |
| NC · State Senate District 8GEOID 37008 · effective 2024-01-01 | State legislative upper chamber | 0.422500K: 0.428 | 0.866500K: 0.878 | 78.7middle or higher | stablePP difference 1.3% | 394.053 km6,470 vertices · 1 part · 0 holes |
| IN · State Senate District 22GEOID 18022 · effective 2024-01-01 | State legislative upper chamber | 0.423500K: 0.424 | 0.750500K: 0.750 | 78.7middle or higher | stablePP difference 0.2% | 222.178 km1,978 vertices · 1 part · 0 holes |
| LA · State House District 50GEOID 22050 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.378 | 0.789500K: 0.779 | 73.7middle or higher | stablePP difference 10.6% | 312.863 km1,514 vertices · 1 part · 0 holes |
| ME · State House District 92GEOID 23092 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.423 | 0.733500K: 0.733 | 73.7middle or higher | stablePP difference 0.2% | 69.087 km510 vertices · 1 part · 0 holes |
| VT · Franklin-6 State House DistrictGEOID 50F-6 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.423 | 0.733500K: 0.732 | 73.7middle or higher | stablePP difference 0.0% | 107.139 km438 vertices · 1 part · 0 holes |
| WI · Assembly District 61GEOID 55061 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.430 | 0.827500K: 0.827 | 73.8middle or higher | stablePP difference 1.8% | 37.904 km740 vertices · 1 part · 0 holes |
| VT · Orleans Senatorial DistrictGEOID 50ORL · effective 2024-01-01 | State legislative upper chamber | 0.423500K: 0.423 | 0.800500K: 0.800 | 78.8middle or higher | stablePP difference 0.0% | 245.267 km1,388 vertices · 1 part · 0 holes |
| MO · State House District 3GEOID 29003 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.431 | 0.874500K: 0.874 | 73.8middle or higher | stablePP difference 2.0% | 395.237 km3,826 vertices · 1 part · 0 holes |
| SC · State House District 81GEOID 45081 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.430 | 0.777500K: 0.778 | 73.8middle or higher | stablePP difference 1.7% | 73.773 km1,633 vertices · 1 part · 0 holes |
| NY · Congressional District 17GEOID 3617 · effective 2024-01-01 | U.S. House | 0.423500K: 0.435 | 0.829500K: 0.829 | 85.7middle or higher | stablePP difference 2.8% | 263.594 km3,888 vertices · 1 part · 0 holes |
| UT · State House District 26GEOID 49026 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.425 | 0.733500K: 0.734 | 73.8middle or higher | stablePP difference 0.4% | 39.509 km639 vertices · 1 part · 0 holes |
| MO · State House District 28GEOID 29028 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.436 | 0.759500K: 0.763 | 73.8middle or higher | stablePP difference 2.9% | 31.875 km302 vertices · 1 part · 0 holes |
| IL · State House District 84GEOID 17084 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.434 | 0.840500K: 0.840 | 73.8middle or higher | stablePP difference 2.4% | 47.489 km1,040 vertices · 1 part · 0 holes |
| FL · State House District 10GEOID 12010 · effective 2024-01-01 | State legislative lower chamber | 0.423500K: 0.454 | 0.910500K: 0.910 | 73.9middle or higher | stablePP difference 6.7% | 420.648 km10,154 vertices · 1 part · 0 holes |
| PA · State Senate District 35GEOID 42035 · effective 2024-01-01 | State legislative upper chamber | 0.424500K: 0.426 | 0.737500K: 0.737 | 78.8middle or higher | stablePP difference 0.6% | 408.212 km2,819 vertices · 1 part · 0 holes |
| NY · Assembly District 120GEOID 36120 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.365 | 0.816500K: 0.752 | 73.9middle or higher | stablePP difference 13.9% | 368.211 km3,308 vertices · 1 part · 0 holes |
| WY · State House District 27GEOID 56027 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.426 | 0.828500K: 0.828 | 73.9middle or higher | stablePP difference 0.4% | 481.079 km2,964 vertices · 1 part · 0 holes |
| NV · Assembly District 30GEOID 32030 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.434 | 0.856500K: 0.856 | 73.9middle or higher | stablePP difference 2.3% | 39.359 km676 vertices · 1 part · 0 holes |
| KS · State House District 36GEOID 20036 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.429 | 0.780500K: 0.779 | 74.0middle or higher | stablePP difference 1.2% | 48.854 km582 vertices · 1 part · 0 holes |
| PA · State House District 200GEOID 42200 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.439 | 0.759500K: 0.760 | 74.0middle or higher | stablePP difference 3.3% | 22.204 km512 vertices · 1 part · 0 holes |
| MN · State House District 39AGEOID 2739A · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.427 | 0.787500K: 0.787 | 74.0middle or higher | stablePP difference 0.7% | 32.517 km328 vertices · 1 part · 0 holes |
| NE · State Senate District 30GEOID 31030 · effective 2024-01-01 | State legislative upper chamber | 0.424500K: 0.427 | 0.847500K: 0.848 | 78.9middle or higher | stablePP difference 0.8% | 269.032 km2,821 vertices · 1 part · 0 holes |
| AR · State Senate District 25GEOID 05025 · effective 2024-01-01 | State legislative upper chamber | 0.424500K: 0.429 | 0.819500K: 0.819 | 79.0middle or higher | stablePP difference 1.1% | 319.791 km4,083 vertices · 1 part · 0 holes |
| NE · State Senate District 10GEOID 31010 · effective 2024-01-01 | State legislative upper chamber | 0.424500K: 0.424 | 0.754500K: 0.754 | 79.0middle or higher | stablePP difference 0.0% | 28.006 km255 vertices · 1 part · 0 holes |
| UT · State House District 31GEOID 49031 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.445 | 0.771500K: 0.771 | 74.0middle or higher | stablePP difference 4.6% | 23.933 km697 vertices · 1 part · 0 holes |
| MO · State House District 58GEOID 29058 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.426 | 0.794500K: 0.794 | 74.0middle or higher | stablePP difference 0.3% | 284.053 km3,128 vertices · 1 part · 0 holes |
| WI · Assembly District 94GEOID 55094 · effective 2024-01-01 | State legislative lower chamber | 0.424500K: 0.431 | 0.794500K: 0.793 | 74.1middle or higher | stablePP difference 1.5% | 174.774 km1,541 vertices · 1 part · 0 holes |
| AR · State Senate District 33GEOID 05033 · effective 2024-01-01 | State legislative upper chamber | 0.425500K: 0.429 | 0.795500K: 0.794 | 79.0middle or higher | stablePP difference 1.0% | 119.362 km1,644 vertices · 1 part · 0 holes |
| RI · State House District 54GEOID 44054 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.458 | 0.766500K: 0.772 | 74.1middle or higher | stablePP difference 7.3% | 13.727 km485 vertices · 1 part · 0 holes |
| OH · State House District 51GEOID 39051 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.433 | 0.863500K: 0.863 | 74.1middle or higher | stablePP difference 1.9% | 230.894 km1,748 vertices · 1 part · 0 holes |
| SD · State Senate District 24GEOID 46024 · effective 2024-01-01 | State legislative upper chamber | 0.425500K: 0.426 | 0.886500K: 0.886 | 79.1middle or higher | stablePP difference 0.4% | 670.39 km6,185 vertices · 1 part · 0 holes |
| SD · State House District 24GEOID 46024 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.426 | 0.886500K: 0.886 | 74.1middle or higher | stablePP difference 0.4% | 670.39 km6,185 vertices · 1 part · 0 holes |
| NH · State House District Rockingham 19GEOID 33719 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.451 | 0.807500K: 0.806 | 74.1middle or higher | stablePP difference 5.8% | 43.432 km745 vertices · 1 part · 0 holes |
| MN · State House District 30BGEOID 2730B · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.429 | 0.812500K: 0.812 | 74.2middle or higher | stablePP difference 1.0% | 87.236 km1,195 vertices · 1 part · 0 holes |
| FL · State Senate District 20GEOID 12020 · effective 2024-01-01 | State legislative upper chamber | 0.425500K: 0.406 | 0.717500K: 0.710 | 79.2middle or higher | stablePP difference 4.4% | 311.518 km1,603 vertices · 1 part · 0 holes |
| PA · State House District 192GEOID 42192 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.450 | 0.866500K: 0.870 | 74.2middle or higher | stablePP difference 5.6% | 17.567 km666 vertices · 1 part · 0 holes |
| WY · State Senate District 1GEOID 56001 · effective 2024-01-01 | State legislative upper chamber | 0.425500K: 0.438 | 0.903500K: 0.904 | 79.2middle or higher | stablePP difference 2.9% | 698.77 km7,436 vertices · 1 part · 0 holes |
| RI · State House District 74GEOID 44074 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.124 | 0.848500K: 0.409 | 74.2middle or higher | resolution sensitivePP difference 70.8% | 56.724 km1,250 vertices · 1 part · 0 holes |
| GA · State House District 122GEOID 13122 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.431 | 0.850500K: 0.850 | 74.2middle or higher | stablePP difference 1.4% | 60.171 km860 vertices · 1 part · 0 holes |
| CO · State House District 56GEOID 08056 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.426 | 0.848500K: 0.849 | 74.2middle or higher | stablePP difference 0.3% | 919.529 km4,337 vertices · 1 part · 0 holes |
| MI · State House District 21GEOID 26021 · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.431 | 0.828500K: 0.828 | 74.3middle or higher | stablePP difference 1.4% | 62.833 km840 vertices · 1 part · 0 holes |
| MN · State House District 20AGEOID 2720A · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.427 | 0.803500K: 0.803 | 74.3middle or higher | stablePP difference 0.5% | 232.371 km1,212 vertices · 1 part · 0 holes |
| MN · State House District 22AGEOID 2722A · effective 2024-01-01 | State legislative lower chamber | 0.425500K: 0.429 | 0.799500K: 0.799 | 74.3middle or higher | stablePP difference 0.7% | 348.238 km2,930 vertices · 1 part · 0 holes |
| CT · State House District 98GEOID 09098 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.331 | 0.851500K: 0.793 | 74.3middle or higher | resolution sensitivePP difference 22.2% | 57.59 km1,265 vertices · 1 part · 0 holes |
| MN · State House District 46AGEOID 2746A · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.437 | 0.808500K: 0.809 | 74.3middle or higher | stablePP difference 2.6% | 25.844 km406 vertices · 1 part · 0 holes |
| KS · State House District 58GEOID 20058 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.427 | 0.789500K: 0.790 | 74.4middle or higher | stablePP difference 0.3% | 32.939 km363 vertices · 1 part · 0 holes |
| IN · State House District 16GEOID 18016 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.427 | 0.813500K: 0.813 | 74.4middle or higher | stablePP difference 0.2% | 329.241 km3,115 vertices · 1 part · 0 holes |
| DE · State Representative District 16GEOID 10016 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.399 | 0.769500K: 0.752 | 74.4middle or higher | stablePP difference 6.3% | 39.335 km1,030 vertices · 1 part · 0 holes |
| SD · State Senate District 12GEOID 46012 · effective 2024-01-01 | State legislative upper chamber | 0.426500K: 0.435 | 0.780500K: 0.781 | 79.3middle or higher | stablePP difference 2.2% | 27.365 km340 vertices · 1 part · 0 holes |
| SD · State House District 12GEOID 46012 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.435 | 0.780500K: 0.781 | 74.4middle or higher | stablePP difference 2.2% | 27.365 km340 vertices · 1 part · 0 holes |
| NE · State Senate District 40GEOID 31040 · effective 2024-01-01 | State legislative upper chamber | 0.426500K: 0.427 | 0.803500K: 0.803 | 79.3middle or higher | stablePP difference 0.3% | 667.554 km3,516 vertices · 1 part · 0 holes |
| VT · Rutland-Bennington State House DistrictGEOID 50R-B · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.427 | 0.770500K: 0.770 | 74.5middle or higher | stablePP difference 0.2% | 108.282 km517 vertices · 1 part · 0 holes |
| NV · Assembly District 18GEOID 32018 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.430 | 0.736500K: 0.736 | 74.5middle or higher | stablePP difference 1.0% | 31.344 km680 vertices · 1 part · 0 holes |
| OK · State House District 41GEOID 40041 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.433 | 0.815500K: 0.815 | 74.5middle or higher | stablePP difference 1.5% | 121.286 km1,426 vertices · 1 part · 0 holes |
| VA · State House District 96GEOID 51096 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.432 | 0.745500K: 0.746 | 74.5middle or higher | stablePP difference 1.4% | 34.286 km715 vertices · 1 part · 0 holes |
| NY · Assembly District 145GEOID 36145 · effective 2024-01-01 | State legislative lower chamber | 0.426500K: 0.432 | 0.763500K: 0.766 | 74.5middle or higher | stablePP difference 1.3% | 129.286 km672 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 48GEOID 53048 · effective 2024-01-01 | State legislative upper chamber | 0.427500K: 0.435 | 0.842500K: 0.843 | 79.4middle or higher | stablePP difference 2.0% | 55.301 km780 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 48GEOID 53048 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.435 | 0.842500K: 0.843 | 74.5middle or higher | stablePP difference 2.0% | 55.301 km780 vertices · 1 part · 0 holes |
| PA · State House District 138GEOID 42138 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.436 | 0.797500K: 0.798 | 74.6middle or higher | stablePP difference 2.2% | 115.56 km2,513 vertices · 1 part · 0 holes |
| WY · State House District 38GEOID 56038 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.430 | 0.844500K: 0.844 | 74.6middle or higher | stablePP difference 0.8% | 536.227 km2,550 vertices · 1 part · 0 holes |
| FL · State House District 28GEOID 12028 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.380 | 0.786500K: 0.741 | 74.6middle or higher | stablePP difference 10.9% | 151.575 km1,591 vertices · 1 part · 0 holes |
| NH · State House District Hillsborough 19GEOID 33519 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.432 | 0.804500K: 0.805 | 74.6middle or higher | stablePP difference 1.3% | 11.66 km183 vertices · 1 part · 0 holes |
| MA · 1st Worcester DistrictGEOID 25142 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.430 | 0.819500K: 0.820 | 74.7middle or higher | stablePP difference 0.7% | 110.731 km714 vertices · 1 part · 0 holes |
| MT · State Senate District 44GEOID 30044 · effective 2024-01-01 | State legislative upper chamber | 0.427500K: 0.443 | 0.823500K: 0.823 | 79.4middle or higher | stablePP difference 3.7% | 208.178 km3,744 vertices · 1 part · 0 holes |
| FL · State Senate District 36GEOID 12036 · effective 2024-01-01 | State legislative upper chamber | 0.427500K: 0.430 | 0.816500K: 0.819 | 79.5middle or higher | stablePP difference 0.7% | 67.612 km747 vertices · 1 part · 0 holes |
| OK · State Senate District 32GEOID 40032 · effective 2024-01-01 | State legislative upper chamber | 0.427500K: 0.428 | 0.818500K: 0.819 | 79.5middle or higher | stablePP difference 0.2% | 211.854 km1,314 vertices · 1 part · 0 holes |
| NV · Congressional District 1GEOID 3201 · effective 2024-01-01 | U.S. House | 0.427500K: 0.435 | 0.887500K: 0.887 | 85.9middle or higher | stablePP difference 1.8% | 278.544 km2,762 vertices · 1 part · 0 holes |
| NV · Assembly District 19GEOID 32019 · effective 2024-01-01 | State legislative lower chamber | 0.427500K: 0.431 | 0.815500K: 0.816 | 74.7middle or higher | stablePP difference 0.8% | 452.47 km3,544 vertices · 1 part · 0 holes |
| OR · Congressional District 2GEOID 4102 · effective 2024-01-01 | U.S. House | 0.427500K: 0.433 | 0.873500K: 0.873 | 86.1middle or higher | stablePP difference 1.3% | 2,353.256 km29,670 vertices · 1 part · 0 holes |
| AR · State House District 53GEOID 05053 · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.429 | 0.746500K: 0.747 | 74.7middle or higher | stablePP difference 0.4% | 61.564 km989 vertices · 1 part · 0 holes |
| NM · State Senate District 33GEOID 35033 · effective 2024-01-01 | State legislative upper chamber | 0.428500K: 0.430 | 0.763500K: 0.763 | 79.6middle or higher | stablePP difference 0.5% | 709.655 km3,614 vertices · 1 part · 0 holes |
| MO · State Senate District 9GEOID 29009 · effective 2024-01-01 | State legislative upper chamber | 0.428500K: 0.438 | 0.842500K: 0.842 | 79.6middle or higher | stablePP difference 2.4% | 83.363 km1,029 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 29BGEOID 2429B · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.277 | 0.798500K: 0.667 | 74.7middle or higher | resolution sensitivePP difference 35.2% | 159.335 km1,611 vertices · 1 part · 0 holes |
| AL · State House District 24GEOID 01024 · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.434 | 0.828500K: 0.828 | 74.7middle or higher | stablePP difference 1.3% | 196.601 km1,668 vertices · 1 part · 0 holes |
| ME · State Senate District 11GEOID 23011 · effective 2024-01-01 | State legislative upper chamber | 0.428500K: 0.225 | 0.773500K: 0.710 | 79.7middle or higher | resolution sensitivePP difference 47.4% | 256.15 km1,806 vertices · 1 part · 0 holes |
| PA · State House District 63GEOID 42063 · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.429 | 0.898500K: 0.898 | 74.8middle or higher | stablePP difference 0.3% | 280.197 km2,103 vertices · 1 part · 0 holes |
| OK · State House District 31GEOID 40031 · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.429 | 0.774500K: 0.774 | 74.8middle or higher | stablePP difference 0.2% | 119.004 km1,844 vertices · 1 part · 0 holes |
| MA · 16th Worcester DistrictGEOID 25157 · effective 2024-01-01 | State legislative lower chamber | 0.428500K: 0.446 | 0.842500K: 0.845 | 74.8middle or higher | stablePP difference 4.0% | 24.952 km472 vertices · 1 part · 0 holes |
| NM · State Senate District 11GEOID 35011 · effective 2024-01-01 | State legislative upper chamber | 0.428500K: 0.431 | 0.803500K: 0.802 | 79.7middle or higher | stablePP difference 0.6% | 28.718 km430 vertices · 1 part · 0 holes |
| PA · Congressional District 15GEOID 4215 · effective 2024-01-01 | U.S. House | 0.428500K: 0.431 | 0.861500K: 0.861 | 86.4middle or higher | stablePP difference 0.6% | 996.199 km9,891 vertices · 1 part · 0 holes |
| LA · State House District 63GEOID 22063 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.430 | 0.786500K: 0.786 | 74.8middle or higher | stablePP difference 0.2% | 88.906 km902 vertices · 1 part · 0 holes |
| CT · State House District 13GEOID 09013 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.434 | 0.771500K: 0.771 | 74.8middle or higher | stablePP difference 1.2% | 38.975 km681 vertices · 1 part · 0 holes |
| CT · State House District 10GEOID 09010 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.433 | 0.759500K: 0.761 | 74.9middle or higher | stablePP difference 1.0% | 26.55 km410 vertices · 1 part · 0 holes |
| NM · State Senate District 21GEOID 35021 · effective 2024-01-01 | State legislative upper chamber | 0.429500K: 0.438 | 0.832500K: 0.832 | 79.8middle or higher | stablePP difference 2.0% | 35.167 km527 vertices · 1 part · 0 holes |
| WV · Delegate District 91GEOID 54091 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.440 | 0.828500K: 0.829 | 74.9middle or higher | stablePP difference 2.5% | 77.107 km1,717 vertices · 1 part · 0 holes |
| CT · State House District 38GEOID 09038 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.461 | 0.782500K: 0.824 | 74.9middle or higher | stablePP difference 7.0% | 67.601 km1,064 vertices · 1 part · 0 holes |
| MN · Congressional District 5GEOID 2705 · effective 2024-01-01 | U.S. House | 0.429500K: 0.434 | 0.857500K: 0.857 | 86.6middle or higher | stablePP difference 1.0% | 101.889 km1,323 vertices · 1 part · 0 holes |
| NY · Congressional District 16GEOID 3616 · effective 2024-01-01 | U.S. House | 0.429500K: 0.356 | 0.883500K: 0.853 | 86.8middle or higher | stablePP difference 17.1% | 109.191 km1,534 vertices · 1 part · 0 holes |
| MI · State House District 5GEOID 26005 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.441 | 0.783500K: 0.783 | 74.9middle or higher | stablePP difference 2.6% | 32.251 km480 vertices · 1 part · 0 holes |
| IA · State House District 67GEOID 19067 · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.432 | 0.851500K: 0.851 | 74.9middle or higher | stablePP difference 0.7% | 266.282 km2,113 vertices · 1 part · 0 holes |
| IN · State Senate District 3GEOID 18003 · effective 2024-01-01 | State legislative upper chamber | 0.429500K: 0.461 | 0.861500K: 0.853 | 79.8middle or higher | stablePP difference 6.9% | 132.8 km1,266 vertices · 1 part · 0 holes |
| NE · State Senate District 26GEOID 31026 · effective 2024-01-01 | State legislative upper chamber | 0.429500K: 0.432 | 0.828500K: 0.828 | 79.9middle or higher | stablePP difference 0.5% | 26.439 km305 vertices · 1 part · 0 holes |
| MN · State House District 10BGEOID 2710B · effective 2024-01-01 | State legislative lower chamber | 0.429500K: 0.430 | 0.809500K: 0.809 | 75.0middle or higher | stablePP difference 0.2% | 295.402 km2,823 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