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 2,901–3,000 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| FL · State House District 107GEOID 12107 · effective 2024-01-01 | State legislative lower chamber | 0.289500K: 0.298 | 0.750500K: 0.751 | 37.4middle or higher | stablePP difference 2.8% | 55.885 km915 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 43GEOID 53043 · effective 2024-01-01 | State legislative upper chamber | 0.289500K: 0.379 | 0.664500K: 0.724 | 41.4middle or higher | resolution sensitivePP difference 23.7% | 42.519 km470 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 43GEOID 53043 · effective 2024-01-01 | State legislative lower chamber | 0.289500K: 0.379 | 0.664500K: 0.724 | 37.4middle or higher | resolution sensitivePP difference 23.7% | 42.519 km470 vertices · 1 part · 0 holes |
| ME · State House District 3GEOID 23003 · effective 2024-01-01 | State legislative lower chamber | 0.289500K: 0.289 | 0.675500K: 0.675 | 37.5middle or higher | stablePP difference 0.0% | 222.669 km951 vertices · 1 part · 0 holes |
| NC · State House District 49GEOID 37049 · effective 2024-01-01 | State legislative lower chamber | 0.289500K: 0.298 | 0.710500K: 0.711 | 37.5middle or higher | stablePP difference 3.0% | 59.65 km2,352 vertices · 1 part · 0 holes |
| SC · State House District 20GEOID 45020 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.305 | 0.753500K: 0.753 | 37.5middle or higher | stablePP difference 5.2% | 52.44 km1,806 vertices · 1 part · 0 holes |
| NY · Assembly District 72GEOID 36072 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.295 | 0.851500K: 0.853 | 37.5middle or higher | stablePP difference 1.8% | 14.574 km237 vertices · 1 part · 0 holes |
| FL · State Senate District 12GEOID 12012 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.301 | 0.782500K: 0.782 | 41.4middle or higher | stablePP difference 3.8% | 335.418 km5,724 vertices · 1 part · 0 holes |
| PR · State House District 13GEOID 72013 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.332 | 0.728500K: 0.723 | 37.5middle or higher | stablePP difference 12.7% | 102.707 km2,328 vertices · 23 parts · 0 holes |
| AR · State Senate District 23GEOID 05023 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.291 | 0.803500K: 0.803 | 41.5middle or higher | stablePP difference 0.6% | 523.517 km5,508 vertices · 1 part · 0 holes |
| CA · State Senate District 7GEOID 06007 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.156 | 0.771500K: 0.607 | 41.5middle or higher | resolution sensitivePP difference 46.1% | 163.519 km2,294 vertices · 1 part · 0 holes |
| IN · State House District 84GEOID 18084 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.297 | 0.736500K: 0.737 | 37.6middle or higher | stablePP difference 2.3% | 60.442 km1,228 vertices · 1 part · 0 holes |
| CO · State Senate District 4GEOID 08004 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.296 | 0.825500K: 0.825 | 41.6middle or higher | stablePP difference 2.1% | 912.96 km9,884 vertices · 1 part · 0 holes |
| HI · State House District 2GEOID 15002 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.323 | 0.726500K: 0.733 | 37.6middle or higher | stablePP difference 10.4% | 50.603 km846 vertices · 1 part · 0 holes |
| PR · State House District 25GEOID 72025 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.333 | 0.709500K: 0.718 | 37.6middle or higher | stablePP difference 13.0% | 128.205 km3,581 vertices · 5 parts · 0 holes |
| MT · State Senate District 42GEOID 30042 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.298 | 0.724500K: 0.724 | 41.6middle or higher | stablePP difference 2.9% | 204.6 km3,739 vertices · 1 part · 0 holes |
| KY · State Senate District 10GEOID 21010 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.301 | 0.750500K: 0.751 | 41.7middle or higher | stablePP difference 3.8% | 267.919 km3,868 vertices · 1 part · 0 holes |
| CT · State House District 30GEOID 09030 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.296 | 0.663500K: 0.663 | 37.6middle or higher | stablePP difference 1.9% | 52.542 km1,020 vertices · 1 part · 0 holes |
| OK · State House District 33GEOID 40033 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.290 | 0.768500K: 0.768 | 37.6middle or higher | stablePP difference 0.2% | 272.785 km2,854 vertices · 1 part · 0 holes |
| MS · State Senate District 33GEOID 28033 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.293 | 0.905500K: 0.905 | 41.8middle or higher | stablePP difference 1.1% | 368.634 km4,719 vertices · 1 part · 0 holes |
| TN · State House District 60GEOID 47060 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.295 | 0.634500K: 0.635 | 37.7middle or higher | stablePP difference 1.6% | 72.348 km1,206 vertices · 1 part · 0 holes |
| MA · 13th Middlesex DistrictGEOID 25071 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.303 | 0.754500K: 0.755 | 37.7middle or higher | stablePP difference 4.2% | 83.139 km1,596 vertices · 1 part · 0 holes |
| LA · State House District 7GEOID 22007 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.323 | 0.811500K: 0.811 | 37.7middle or higher | stablePP difference 10.2% | 397.586 km10,337 vertices · 1 part · 0 holes |
| PA · State House District 52GEOID 42052 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.302 | 0.721500K: 0.721 | 37.7middle or higher | stablePP difference 3.8% | 220.234 km4,183 vertices · 1 part · 0 holes |
| PA · State House District 190GEOID 42190 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.295 | 0.709500K: 0.709 | 37.8middle or higher | stablePP difference 1.6% | 30.268 km499 vertices · 1 part · 0 holes |
| NH · State House District Coos 02GEOID 33302 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.316 | 0.796500K: 0.797 | 37.8middle or higher | stablePP difference 8.1% | 315.231 km3,454 vertices · 1 part · 0 holes |
| AL · State Senate District 1GEOID 01001 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.292 | 0.783500K: 0.783 | 41.8middle or higher | stablePP difference 0.5% | 348.995 km2,815 vertices · 1 part · 0 holes |
| MN · State Senate District 31GEOID 27031 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.293 | 0.742500K: 0.743 | 41.9middle or higher | stablePP difference 1.0% | 156.296 km1,623 vertices · 1 part · 0 holes |
| AL · State Senate District 14GEOID 01014 · effective 2024-01-01 | State legislative upper chamber | 0.290500K: 0.307 | 0.818500K: 0.818 | 41.9middle or higher | stablePP difference 5.3% | 363.569 km7,829 vertices · 1 part · 0 holes |
| VA · State House District 77GEOID 51077 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.299 | 0.749500K: 0.749 | 37.8middle or higher | stablePP difference 3.0% | 58.335 km1,595 vertices · 1 part · 0 holes |
| TN · State House District 32GEOID 47032 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.298 | 0.754500K: 0.754 | 37.8middle or higher | stablePP difference 2.7% | 218.396 km4,796 vertices · 1 part · 0 holes |
| MT · State House District 38GEOID 30038 · effective 2024-01-01 | State legislative lower chamber | 0.290500K: 0.296 | 0.749500K: 0.749 | 37.8middle or higher | stablePP difference 1.8% | 646.803 km6,111 vertices · 1 part · 0 holes |
| NC · State House District 60GEOID 37060 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.309 | 0.784500K: 0.785 | 37.9middle or higher | stablePP difference 5.9% | 70.449 km1,476 vertices · 1 part · 0 holes |
| NJ · State Senate District 13GEOID 34013 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.184 | 0.783500K: 0.627 | 42.0middle or higher | resolution sensitivePP difference 36.5% | 165.25 km4,498 vertices · 1 part · 0 holes |
| NJ · Assembly District 13GEOID 34013 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.184 | 0.783500K: 0.627 | 37.9middle or higher | resolution sensitivePP difference 36.5% | 165.25 km4,498 vertices · 1 part · 0 holes |
| OK · State Senate District 28GEOID 40028 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.292 | 0.730500K: 0.730 | 42.0middle or higher | stablePP difference 0.5% | 474.894 km7,424 vertices · 1 part · 0 holes |
| CA · State Senate District 23GEOID 06023 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.300 | 0.780500K: 0.780 | 42.0middle or higher | stablePP difference 3.2% | 538.399 km8,048 vertices · 1 part · 0 holes |
| WY · State Senate District 28GEOID 56028 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.296 | 0.735500K: 0.736 | 42.1middle or higher | stablePP difference 1.9% | 26.621 km639 vertices · 1 part · 0 holes |
| NY · Assembly District 52GEOID 36052 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.303 | 0.690500K: 0.689 | 37.9middle or higher | stablePP difference 4.0% | 19.679 km342 vertices · 1 part · 0 holes |
| NM · State House District 36GEOID 35036 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.296 | 0.719500K: 0.720 | 37.9middle or higher | stablePP difference 1.9% | 223.837 km3,834 vertices · 1 part · 0 holes |
| MT · State House District 57GEOID 30057 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.293 | 0.744500K: 0.744 | 37.9middle or higher | stablePP difference 0.7% | 584.02 km3,231 vertices · 1 part · 0 holes |
| NE · State Senate District 13GEOID 31013 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.297 | 0.713500K: 0.715 | 42.2middle or higher | stablePP difference 1.9% | 76.413 km1,026 vertices · 1 part · 0 holes |
| CO · Congressional District 4GEOID 0804 · effective 2024-01-01 | U.S. House | 0.291500K: 0.294 | 0.833500K: 0.833 | 60.7middle or higher | stablePP difference 1.0% | 1,899.532 km13,413 vertices · 1 part · 0 holes |
| KS · State Senate District 22GEOID 20022 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.294 | 0.697500K: 0.697 | 42.2middle or higher | stablePP difference 0.9% | 263.615 km8,169 vertices · 1 part · 0 holes |
| PR · State House District 33GEOID 72033 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.320 | 0.730500K: 0.731 | 38.0middle or higher | stablePP difference 9.0% | 82.952 km2,521 vertices · 1 part · 0 holes |
| NH · State Senate District 12GEOID 33012 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.297 | 0.878500K: 0.880 | 42.3middle or higher | stablePP difference 2.0% | 138.847 km1,884 vertices · 1 part · 0 holes |
| NC · Congressional District 6GEOID 3706 · effective 2024-01-01 | U.S. House | 0.291500K: 0.297 | 0.727500K: 0.727 | 60.9middle or higher | stablePP difference 2.0% | 434.183 km7,126 vertices · 1 part · 0 holes |
| NC · State House District 12GEOID 37012 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.316 | 0.757500K: 0.757 | 38.0middle or higher | stablePP difference 7.9% | 357.227 km10,072 vertices · 1 part · 0 holes |
| VA · State House District 29GEOID 51029 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.304 | 0.711500K: 0.710 | 38.0middle or higher | stablePP difference 4.2% | 73.402 km3,002 vertices · 1 part · 0 holes |
| NC · State House District 89GEOID 37089 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.301 | 0.737500K: 0.738 | 38.0middle or higher | stablePP difference 3.1% | 198.769 km4,715 vertices · 1 part · 0 holes |
| GA · State House District 100GEOID 13100 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.294 | 0.655500K: 0.655 | 38.0middle or higher | stablePP difference 1.0% | 72.245 km1,454 vertices · 1 part · 0 holes |
| CO · State House District 5GEOID 08005 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.303 | 0.626500K: 0.626 | 38.0middle or higher | stablePP difference 3.9% | 41.353 km1,128 vertices · 1 part · 0 holes |
| SC · State House District 31GEOID 45031 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.296 | 0.713500K: 0.716 | 38.1middle or higher | stablePP difference 1.7% | 52.298 km1,011 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 49GEOID 53049 · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.300 | 0.671500K: 0.671 | 42.3middle or higher | stablePP difference 2.8% | 79.457 km1,149 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 49GEOID 53049 · effective 2024-01-01 | State legislative lower chamber | 0.291500K: 0.300 | 0.671500K: 0.671 | 38.1middle or higher | stablePP difference 2.8% | 79.457 km1,149 vertices · 1 part · 0 holes |
| AK · State Senate District EGEOID 0200E · effective 2024-01-01 | State legislative upper chamber | 0.291500K: 0.228 | 0.716500K: 0.678 | 42.4middle or higher | resolution sensitivePP difference 21.8% | 282.412 km895 vertices · 1 part · 0 holes |
| KY · State House District 77GEOID 21077 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.297 | 0.746500K: 0.747 | 38.1middle or higher | stablePP difference 1.8% | 43.379 km603 vertices · 1 part · 0 holes |
| WI · Congressional District 4GEOID 5504 · effective 2024-01-01 | U.S. House | 0.292500K: 0.322 | 0.756500K: 0.849 | 61.1middle or higher | resolution sensitivePP difference 9.6% | 247.14 km1,960 vertices · 1 part · 0 holes |
| IA · State House District 97GEOID 19097 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.299 | 0.716500K: 0.717 | 38.1middle or higher | stablePP difference 2.6% | 31.897 km489 vertices · 1 part · 0 holes |
| MO · State House District 117GEOID 29117 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.298 | 0.731500K: 0.731 | 38.2middle or higher | stablePP difference 2.2% | 162.76 km2,047 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 27AGEOID 2427A · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.301 | 0.674500K: 0.674 | 38.2middle or higher | stablePP difference 3.3% | 94.425 km2,936 vertices · 1 part · 0 holes |
| ND · State Senate District 29GEOID 38029 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.292 | 0.660500K: 0.660 | 42.4middle or higher | stablePP difference 0.3% | 744.296 km4,753 vertices · 1 part · 0 holes |
| ND · State House District 29GEOID 38029 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.292 | 0.660500K: 0.660 | 38.2middle or higher | stablePP difference 0.3% | 744.296 km4,753 vertices · 1 part · 0 holes |
| MO · State House District 59GEOID 29059 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.297 | 0.747500K: 0.747 | 38.2middle or higher | stablePP difference 1.7% | 203.19 km2,310 vertices · 1 part · 0 holes |
| IA · State Senate District 47GEOID 19047 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.294 | 0.706500K: 0.706 | 42.5middle or higher | stablePP difference 0.7% | 104.182 km793 vertices · 1 part · 0 holes |
| GA · State House District 99GEOID 13099 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.297 | 0.718500K: 0.718 | 38.2middle or higher | stablePP difference 1.9% | 55.172 km1,194 vertices · 1 part · 0 holes |
| NH · State Senate District 14GEOID 33014 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.299 | 0.738500K: 0.738 | 42.5middle or higher | stablePP difference 2.5% | 105.619 km1,592 vertices · 1 part · 0 holes |
| OK · State House District 27GEOID 40027 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.292 | 0.703500K: 0.703 | 38.3middle or higher | stablePP difference 0.1% | 227.268 km2,559 vertices · 1 part · 0 holes |
| MA · 17th Essex DistrictGEOID 25040 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.305 | 0.632500K: 0.634 | 38.3middle or higher | stablePP difference 4.4% | 26.895 km538 vertices · 1 part · 0 holes |
| KS · State House District 37GEOID 20037 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.297 | 0.727500K: 0.728 | 38.3middle or higher | stablePP difference 1.6% | 55.39 km737 vertices · 1 part · 0 holes |
| TN · Congressional District 8GEOID 4708 · effective 2024-01-01 | U.S. House | 0.292500K: 0.298 | 0.867500K: 0.867 | 61.4middle or higher | stablePP difference 2.1% | 1,022.552 km15,255 vertices · 1 part · 0 holes |
| CT · State House District 73GEOID 09073 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.307 | 0.752500K: 0.752 | 38.3middle or higher | stablePP difference 4.8% | 26.61 km729 vertices · 1 part · 0 holes |
| NJ · State Senate District 35GEOID 34035 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.298 | 0.693500K: 0.693 | 42.6middle or higher | stablePP difference 2.2% | 45.795 km944 vertices · 1 part · 0 holes |
| NJ · Assembly District 35GEOID 34035 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.298 | 0.693500K: 0.693 | 38.3middle or higher | stablePP difference 2.2% | 45.795 km944 vertices · 1 part · 0 holes |
| WI · Assembly District 89GEOID 55089 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.313 | 0.791500K: 0.791 | 38.4middle or higher | stablePP difference 6.8% | 53.327 km1,094 vertices · 1 part · 0 holes |
| OR · State House District 48GEOID 41048 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.299 | 0.717500K: 0.718 | 38.4middle or higher | stablePP difference 2.4% | 73.727 km1,287 vertices · 1 part · 0 holes |
| GA · Congressional District 14GEOID 1314 · effective 2024-01-01 | U.S. House | 0.292500K: 0.295 | 0.718500K: 0.718 | 61.6middle or higher | stablePP difference 1.1% | 574.376 km5,064 vertices · 1 part · 0 holes |
| NJ · State Senate District 17GEOID 34017 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.307 | 0.736500K: 0.736 | 42.6middle or higher | stablePP difference 4.9% | 97.037 km5,176 vertices · 1 part · 0 holes |
| NJ · Assembly District 17GEOID 34017 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.307 | 0.736500K: 0.736 | 38.4middle or higher | stablePP difference 4.9% | 97.037 km5,176 vertices · 1 part · 0 holes |
| AR · State Senate District 5GEOID 05005 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.294 | 0.715500K: 0.715 | 42.7middle or higher | stablePP difference 0.6% | 733.651 km6,229 vertices · 1 part · 0 holes |
| KS · State Senate District 2GEOID 20002 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.299 | 0.741500K: 0.741 | 42.7middle or higher | stablePP difference 2.2% | 69.145 km1,186 vertices · 1 part · 0 holes |
| VA · Congressional District 8GEOID 5108 · effective 2024-01-01 | U.S. House | 0.292500K: 0.311 | 0.776500K: 0.770 | 61.8middle or higher | stablePP difference 5.9% | 132.802 km10,631 vertices · 1 part · 0 holes |
| LA · State House District 6GEOID 22006 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.296 | 0.669500K: 0.669 | 38.4middle or higher | stablePP difference 1.1% | 48.957 km941 vertices · 1 part · 0 holes |
| WY · State Senate District 12GEOID 56012 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.298 | 0.612500K: 0.613 | 42.8middle or higher | stablePP difference 1.8% | 39.969 km587 vertices · 1 part · 0 holes |
| MT · State Senate District 30GEOID 30030 · effective 2024-01-01 | State legislative upper chamber | 0.292500K: 0.297 | 0.707500K: 0.707 | 42.8middle or higher | stablePP difference 1.6% | 383.737 km3,054 vertices · 1 part · 0 holes |
| TX · State House District 76GEOID 48076 · effective 2024-01-01 | State legislative lower chamber | 0.292500K: 0.295 | 0.673500K: 0.674 | 38.4middle or higher | stablePP difference 1.0% | 78.287 km1,147 vertices · 1 part · 0 holes |
| IN · State Senate District 11GEOID 18011 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.294 | 0.874500K: 0.874 | 42.9middle or higher | stablePP difference 0.5% | 129.719 km1,514 vertices · 1 part · 0 holes |
| NC · State House District 104GEOID 37104 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.302 | 0.782500K: 0.783 | 38.5middle or higher | stablePP difference 3.0% | 55.104 km1,583 vertices · 1 part · 0 holes |
| MS · State House District 18GEOID 28018 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.293 | 0.726500K: 0.726 | 38.5middle or higher | stablePP difference 0.3% | 155.064 km2,020 vertices · 1 part · 0 holes |
| GA · State House District 19GEOID 13019 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.303 | 0.676500K: 0.676 | 38.5middle or higher | stablePP difference 3.4% | 80.885 km1,843 vertices · 1 part · 0 holes |
| PA · Congressional District 6GEOID 4206 · effective 2024-01-01 | U.S. House | 0.293500K: 0.303 | 0.729500K: 0.729 | 62.0middle or higher | stablePP difference 3.4% | 322.384 km8,993 vertices · 1 part · 0 holes |
| AR · State House District 58GEOID 05058 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.324 | 0.728500K: 0.729 | 38.5middle or higher | stablePP difference 9.7% | 95.242 km3,018 vertices · 1 part · 0 holes |
| IA · State Senate District 8GEOID 19008 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.295 | 0.727500K: 0.727 | 42.9middle or higher | stablePP difference 0.8% | 526.846 km5,500 vertices · 1 part · 0 holes |
| CO · State House District 20GEOID 08020 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.299 | 0.802500K: 0.802 | 38.5middle or higher | stablePP difference 2.0% | 186.1 km2,647 vertices · 1 part · 0 holes |
| LA · State House District 40GEOID 22040 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.301 | 0.708500K: 0.708 | 38.6middle or higher | stablePP difference 2.8% | 148.605 km2,018 vertices · 1 part · 0 holes |
| AR · State House District 27GEOID 05027 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.294 | 0.744500K: 0.744 | 38.6middle or higher | stablePP difference 0.2% | 505.328 km3,298 vertices · 1 part · 0 holes |
| IN · State Senate District 18GEOID 18018 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.297 | 0.724500K: 0.724 | 43.0middle or higher | stablePP difference 1.2% | 427.285 km4,949 vertices · 1 part · 0 holes |
| MA · Second Suffolk DistrictGEOID 25D29 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.305 | 0.749500K: 0.748 | 43.0middle or higher | stablePP difference 4.0% | 35.566 km991 vertices · 1 part · 0 holes |
| GA · State House District 144GEOID 13144 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.301 | 0.772500K: 0.773 | 38.6middle or higher | stablePP difference 2.5% | 328.707 km6,602 vertices · 1 part · 0 holes |
| MT · State House District 14GEOID 30014 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.301 | 0.753500K: 0.753 | 38.6middle or higher | stablePP difference 2.6% | 479.637 km7,545 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