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 401–500 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| TX · State Senate District 11GEOID 48011 · effective 2024-01-01 | State legislative upper chamber | 0.144500K: 0.085 | 0.589500K: 0.529 | 6.3lower decile | resolution sensitivePP difference 40.9% | 508.162 km6,390 vertices · 1 part · 0 holes |
| TX · State House District 74GEOID 48074 · effective 2024-01-01 | State legislative lower chamber | 0.145500K: 0.150 | 0.614500K: 0.614 | 4.4lower decile | stablePP difference 3.3% | 2,678.358 km34,578 vertices · 1 part · 0 holes |
| TX · State House District 103GEOID 48103 · effective 2024-01-01 | State legislative lower chamber | 0.145500K: 0.149 | 0.660500K: 0.660 | 4.4lower decile | stablePP difference 2.5% | 119.229 km2,253 vertices · 1 part · 0 holes |
| MS · State House District 56GEOID 28056 · effective 2024-01-01 | State legislative lower chamber | 0.145500K: 0.148 | 0.546500K: 0.546 | 4.5lower decile | stablePP difference 1.8% | 168.311 km2,470 vertices · 1 part · 0 holes |
| WV · Delegate District 31GEOID 54031 · effective 2024-01-01 | State legislative lower chamber | 0.145500K: 0.154 | 0.635500K: 0.635 | 4.5lower decile | stablePP difference 6.1% | 259.48 km6,173 vertices · 1 part · 0 holes |
| TX · State House District 146GEOID 48146 · effective 2024-01-01 | State legislative lower chamber | 0.145500K: 0.148 | 0.601500K: 0.600 | 4.5lower decile | stablePP difference 2.0% | 96.994 km1,285 vertices · 1 part · 0 holes |
| GA · State House District 65GEOID 13065 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.150 | 0.674500K: 0.674 | 4.5lower decile | stablePP difference 3.2% | 188.829 km3,587 vertices · 1 part · 0 holes |
| OH · State House District 6GEOID 39006 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.160 | 0.774500K: 0.775 | 4.5lower decile | stablePP difference 9.1% | 82.721 km1,248 vertices · 1 part · 0 holes |
| CA · Assembly District 65GEOID 06065 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.131 | 0.565500K: 0.569 | 4.6lower decile | stablePP difference 10.1% | 137.408 km2,119 vertices · 1 part · 0 holes |
| NC · State Senate District 46GEOID 37046 · effective 2024-01-01 | State legislative upper chamber | 0.146500K: 0.152 | 0.639500K: 0.639 | 6.3lower decile | stablePP difference 3.9% | 545.031 km15,569 vertices · 1 part · 0 holes |
| IL · Congressional District 11GEOID 1711 · effective 2024-01-01 | U.S. House | 0.146500K: 0.148 | 0.532500K: 0.532 | 14.1lower quartile | stablePP difference 1.3% | 454.676 km6,182 vertices · 1 part · 0 holes |
| CA · Congressional District 40GEOID 0640 · effective 2024-01-01 | U.S. House | 0.146500K: 0.154 | 0.711500K: 0.711 | 14.3lower quartile | stablePP difference 4.9% | 296.153 km5,661 vertices · 1 part · 0 holes |
| PR · State Senate District 5GEOID 72005 · effective 2024-01-01 | State legislative upper chamber | 0.146500K: 0.214 | 0.697500K: 0.698 | 6.4lower decile | resolution sensitivePP difference 31.6% | 443.448 km18,124 vertices · 65 parts · 0 holes |
| KY · State House District 88GEOID 21088 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.152 | 0.603500K: 0.604 | 4.6lower decile | stablePP difference 3.7% | 190.848 km3,821 vertices · 1 part · 0 holes |
| NY · Assembly District 129GEOID 36129 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.150 | 0.565500K: 0.565 | 4.6lower decile | stablePP difference 2.8% | 120.925 km1,675 vertices · 1 part · 0 holes |
| MO · State House District 76GEOID 29076 · effective 2024-01-01 | State legislative lower chamber | 0.146500K: 0.151 | 0.406500K: 0.405 | 4.6lower decile | stablePP difference 2.9% | 65.48 km1,019 vertices · 1 part · 0 holes |
| AL · State House District 8GEOID 01008 · effective 2024-01-01 | State legislative lower chamber | 0.147500K: 0.161 | 0.811500K: 0.811 | 4.6lower decile | stablePP difference 8.9% | 145.606 km4,269 vertices · 1 part · 0 holes |
| ID · State Senate District 31GEOID 16031 · effective 2024-01-01 | State legislative upper chamber | 0.147500K: 0.158 | 0.555500K: 0.555 | 6.4lower decile | stablePP difference 6.9% | 1,437.4 km26,090 vertices · 1 part · 0 holes |
| ID · State House District 31GEOID 16031 · effective 2024-01-01 | State legislative lower chamber | 0.147500K: 0.158 | 0.555500K: 0.555 | 4.7lower decile | stablePP difference 6.9% | 1,437.4 km26,090 vertices · 1 part · 0 holes |
| TX · Congressional District 5GEOID 4805 · effective 2024-01-01 | U.S. House | 0.147500K: 0.158 | 0.640500K: 0.640 | 14.6lower quartile | stablePP difference 6.9% | 916.211 km20,099 vertices · 1 part · 0 holes |
| CO · State Senate District 17GEOID 08017 · effective 2024-01-01 | State legislative upper chamber | 0.147500K: 0.152 | 0.684500K: 0.684 | 6.5lower decile | stablePP difference 3.5% | 154.177 km2,096 vertices · 1 part · 0 holes |
| AL · State House District 50GEOID 01050 · effective 2024-01-01 | State legislative lower chamber | 0.147500K: 0.154 | 0.616500K: 0.616 | 4.7lower decile | stablePP difference 4.7% | 233.48 km4,551 vertices · 1 part · 0 holes |
| UT · State House District 51GEOID 49051 · effective 2024-01-01 | State legislative lower chamber | 0.147500K: 0.153 | 0.567500K: 0.568 | 4.7lower decile | stablePP difference 4.0% | 77.027 km1,021 vertices · 1 part · 0 holes |
| CO · State Senate District 2GEOID 08002 · effective 2024-01-01 | State legislative upper chamber | 0.147500K: 0.150 | 0.672500K: 0.672 | 6.5lower decile | stablePP difference 1.8% | 160.726 km2,328 vertices · 1 part · 0 holes |
| TX · State Senate District 26GEOID 48026 · effective 2024-01-01 | State legislative upper chamber | 0.147500K: 0.151 | 0.630500K: 0.630 | 6.6lower decile | stablePP difference 2.2% | 211.44 km3,105 vertices · 1 part · 0 holes |
| CA · Assembly District 67GEOID 06067 · effective 2024-01-01 | State legislative lower chamber | 0.148500K: 0.153 | 0.651500K: 0.651 | 4.7lower decile | stablePP difference 3.5% | 111.819 km2,518 vertices · 1 part · 0 holes |
| MD · State Senate District 10GEOID 24010 · effective 2024-01-01 | State legislative upper chamber | 0.148500K: 0.155 | 0.554500K: 0.554 | 6.6lower decile | stablePP difference 4.8% | 148.796 km4,903 vertices · 1 part · 0 holes |
| MD · State Legislative District 10GEOID 24010 · effective 2024-01-01 | State legislative lower chamber | 0.148500K: 0.155 | 0.554500K: 0.554 | 4.7lower decile | stablePP difference 4.8% | 148.796 km4,903 vertices · 1 part · 0 holes |
| MS · State House District 49GEOID 28049 · effective 2024-01-01 | State legislative lower chamber | 0.148500K: 0.150 | 0.635500K: 0.636 | 4.8lower decile | stablePP difference 1.0% | 175.447 km6,601 vertices · 1 part · 0 holes |
| MS · State House District 9GEOID 28009 · effective 2024-01-01 | State legislative lower chamber | 0.148500K: 0.152 | 0.628500K: 0.628 | 4.8lower decile | stablePP difference 2.1% | 508.419 km7,880 vertices · 1 part · 0 holes |
| MS · State Senate District 11GEOID 28011 · effective 2024-01-01 | State legislative upper chamber | 0.149500K: 0.152 | 0.665500K: 0.666 | 6.7lower decile | stablePP difference 2.0% | 524.586 km7,279 vertices · 1 part · 0 holes |
| MO · State House District 33GEOID 29033 · effective 2024-01-01 | State legislative lower chamber | 0.149500K: 0.154 | 0.722500K: 0.722 | 4.8lower decile | stablePP difference 3.2% | 160.38 km1,460 vertices · 1 part · 0 holes |
| AL · State House District 90GEOID 01090 · effective 2024-01-01 | State legislative lower chamber | 0.149500K: 0.155 | 0.565500K: 0.565 | 4.8lower decile | stablePP difference 4.4% | 715.24 km10,229 vertices · 1 part · 0 holes |
| AL · State House District 15GEOID 01015 · effective 2024-01-01 | State legislative lower chamber | 0.149500K: 0.155 | 0.607500K: 0.607 | 4.8lower decile | stablePP difference 3.9% | 144.284 km3,028 vertices · 1 part · 0 holes |
| TX · State House District 68GEOID 48068 · effective 2024-01-01 | State legislative lower chamber | 0.149500K: 0.150 | 0.468500K: 0.468 | 4.9lower decile | stablePP difference 0.7% | 1,546.532 km9,783 vertices · 1 part · 0 holes |
| IL · State Senate District 28GEOID 17028 · effective 2024-01-01 | State legislative upper chamber | 0.149500K: 0.152 | 0.523500K: 0.523 | 6.8lower decile | stablePP difference 1.6% | 110.8 km3,093 vertices · 1 part · 0 holes |
| TX · Congressional District 26GEOID 4826 · effective 2024-01-01 | U.S. House | 0.149500K: 0.153 | 0.633500K: 0.633 | 14.8lower quartile | stablePP difference 2.5% | 669.988 km9,461 vertices · 1 part · 0 holes |
| OH · State Senate District 15GEOID 39015 · effective 2024-01-01 | State legislative upper chamber | 0.149500K: 0.156 | 0.644500K: 0.644 | 6.8lower decile | stablePP difference 4.1% | 137.911 km2,972 vertices · 1 part · 0 holes |
| AK · State Senate District TGEOID 0200T · effective 2024-01-01 | State legislative upper chamber | 0.150500K: 0.081 | 0.554500K: 0.516 | 6.8lower decile | resolution sensitivePP difference 46.1% | 6,221.623 km7,601 vertices · 7 parts · 0 holes |
| PR · State House District 1GEOID 72001 · effective 2024-01-01 | State legislative lower chamber | 0.150500K: 0.274 | 0.617500K: 0.729 | 4.9lower decile | resolution sensitivePP difference 45.4% | 39.613 km1,551 vertices · 3 parts · 0 holes |
| MD · State Legislative Subdistrict 1CGEOID 2401C · effective 2024-01-01 | State legislative lower chamber | 0.150500K: 0.157 | 0.659500K: 0.659 | 4.9lower decile | stablePP difference 4.7% | 308.206 km6,735 vertices · 1 part · 0 holes |
| MT · State House District 15GEOID 30015 · effective 2024-01-01 | State legislative lower chamber | 0.150500K: 0.156 | 0.605500K: 0.605 | 4.9lower decile | stablePP difference 3.7% | 727.121 km13,721 vertices · 1 part · 0 holes |
| TX · State House District 114GEOID 48114 · effective 2024-01-01 | State legislative lower chamber | 0.150500K: 0.157 | 0.603500K: 0.604 | 5.0lower decile | stablePP difference 4.2% | 82.985 km1,967 vertices · 1 part · 0 holes |
| TN · State House District 55GEOID 47055 · effective 2024-01-01 | State legislative lower chamber | 0.150500K: 0.156 | 0.565500K: 0.569 | 5.0lower decile | stablePP difference 3.6% | 62.824 km1,872 vertices · 1 part · 0 holes |
| IL · State Senate District 14GEOID 17014 · effective 2024-01-01 | State legislative upper chamber | 0.150500K: 0.152 | 0.493500K: 0.493 | 6.9lower decile | stablePP difference 1.4% | 110.709 km3,370 vertices · 1 part · 0 holes |
| KY · State Senate District 1GEOID 21001 · effective 2024-01-01 | State legislative upper chamber | 0.151500K: 0.153 | 0.557500K: 0.557 | 7.0lower decile | stablePP difference 1.4% | 743.951 km5,372 vertices · 2 parts · 0 holes |
| TX · State Senate District 24GEOID 48024 · effective 2024-01-01 | State legislative upper chamber | 0.151500K: 0.151 | 0.468500K: 0.468 | 7.0lower decile | stablePP difference 0.2% | 1,628.769 km9,581 vertices · 1 part · 0 holes |
| TX · State House District 118GEOID 48118 · effective 2024-01-01 | State legislative lower chamber | 0.151500K: 0.155 | 0.554500K: 0.554 | 5.0lower decile | stablePP difference 2.5% | 322.553 km5,221 vertices · 1 part · 0 holes |
| AK · State House District 2GEOID 02002 · effective 2024-01-01 | State legislative lower chamber | 0.151500K: 0.010 | 0.468500K: 0.344 | 5.0lower decile | resolution sensitivePP difference 93.1% | 2,764.712 km6,671 vertices · 1 part · 0 holes |
| CA · Assembly District 45GEOID 06045 · effective 2024-01-01 | State legislative lower chamber | 0.151500K: 0.156 | 0.644500K: 0.644 | 5.0lower decile | stablePP difference 3.0% | 177.901 km3,005 vertices · 1 part · 0 holes |
| AZ · State Senate District 7GEOID 04007 · effective 2024-01-01 | State legislative upper chamber | 0.152500K: 0.154 | 0.575500K: 0.575 | 7.0lower decile | stablePP difference 1.4% | 1,521.929 km16,707 vertices · 1 part · 0 holes |
| AZ · State House District 7GEOID 04007 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.154 | 0.575500K: 0.575 | 5.0lower decile | stablePP difference 1.4% | 1,521.929 km16,707 vertices · 1 part · 0 holes |
| TX · State Senate District 10GEOID 48010 · effective 2024-01-01 | State legislative upper chamber | 0.152500K: 0.154 | 0.541500K: 0.541 | 7.1lower decile | stablePP difference 1.4% | 1,154.215 km12,295 vertices · 1 part · 0 holes |
| GA · State Senate District 41GEOID 13041 · effective 2024-01-01 | State legislative upper chamber | 0.152500K: 0.156 | 0.594500K: 0.595 | 7.2lower decile | stablePP difference 2.7% | 105.085 km1,945 vertices · 1 part · 0 holes |
| KY · Congressional District 4GEOID 2104 · effective 2024-01-01 | U.S. House | 0.152500K: 0.158 | 0.527500K: 0.527 | 15.0lower quartile | stablePP difference 3.7% | 1,032.107 km17,799 vertices · 1 part · 0 holes |
| NJ · Congressional District 6GEOID 3406 · effective 2024-01-01 | U.S. House | 0.152500K: 0.097 | 0.566500K: 0.422 | 15.2lower quartile | resolution sensitivePP difference 35.8% | 287.642 km5,781 vertices · 1 part · 0 holes |
| KS · Congressional District 2GEOID 2002 · effective 2024-01-01 | U.S. House | 0.152500K: 0.153 | 0.629500K: 0.630 | 15.4lower quartile | stablePP difference 0.5% | 1,822.296 km16,367 vertices · 1 part · 0 holes |
| TN · State Senate District 25GEOID 47025 · effective 2024-01-01 | State legislative upper chamber | 0.152500K: 0.158 | 0.504500K: 0.504 | 7.2lower decile | stablePP difference 3.7% | 779.336 km12,679 vertices · 1 part · 0 holes |
| GA · State House District 49GEOID 13049 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.163 | 0.592500K: 0.592 | 5.1lower decile | stablePP difference 6.6% | 78.322 km2,611 vertices · 1 part · 0 holes |
| CA · Congressional District 24GEOID 0624 · effective 2024-01-01 | U.S. House | 0.152500K: 0.154 | 0.550500K: 0.464 | 15.7lower quartile | resolution sensitivePP difference 0.8% | 1,165.855 km10,681 vertices · 4 parts · 0 holes |
| TN · State House District 51GEOID 47051 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.157 | 0.608500K: 0.608 | 5.1lower decile | stablePP difference 3.2% | 87.324 km2,338 vertices · 1 part · 0 holes |
| AL · State House District 65GEOID 01065 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.156 | 0.745500K: 0.745 | 5.1lower decile | stablePP difference 2.3% | 804.854 km8,987 vertices · 1 part · 0 holes |
| OH · State House District 15GEOID 39015 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.159 | 0.635500K: 0.635 | 5.1lower decile | stablePP difference 4.0% | 105.127 km1,016 vertices · 1 part · 0 holes |
| AL · State House District 73GEOID 01073 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.164 | 0.591500K: 0.591 | 5.2lower decile | stablePP difference 6.8% | 104.969 km3,822 vertices · 1 part · 0 holes |
| MA · 1st Norfolk DistrictGEOID 25096 · effective 2024-01-01 | State legislative lower chamber | 0.152500K: 0.130 | 0.433500K: 0.427 | 5.2lower decile | stablePP difference 14.6% | 59.241 km1,180 vertices · 1 part · 0 holes |
| NM · State Senate District 30GEOID 35030 · effective 2024-01-01 | State legislative upper chamber | 0.152500K: 0.155 | 0.606500K: 0.607 | 7.3lower decile | stablePP difference 1.6% | 1,052.361 km10,869 vertices · 1 part · 1 hole |
| AL · Congressional District 1GEOID 0101 · effective 2024-01-01 | U.S. House | 0.152500K: 0.112 | 0.595500K: 0.563 | 15.9lower quartile | resolution sensitivePP difference 26.7% | 1,316.978 km16,008 vertices · 1 part · 0 holes |
| MS · State House District 43GEOID 28043 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.156 | 0.542500K: 0.543 | 5.2lower decile | stablePP difference 2.0% | 129.922 km2,655 vertices · 1 part · 0 holes |
| AL · State House District 59GEOID 01059 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.166 | 0.718500K: 0.719 | 5.2lower decile | stablePP difference 8.1% | 109.737 km2,161 vertices · 1 part · 0 holes |
| TX · State House District 129GEOID 48129 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.170 | 0.694500K: 0.695 | 5.2lower decile | stablePP difference 10.0% | 146.579 km4,146 vertices · 1 part · 0 holes |
| CA · Assembly District 15GEOID 06015 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.160 | 0.619500K: 0.619 | 5.3lower decile | stablePP difference 4.5% | 271.838 km4,921 vertices · 1 part · 0 holes |
| VA · State House District 71GEOID 51071 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.165 | 0.639500K: 0.658 | 5.3lower decile | stablePP difference 7.3% | 241.198 km6,994 vertices · 1 part · 0 holes |
| IL · State Senate District 21GEOID 17021 · effective 2024-01-01 | State legislative upper chamber | 0.153500K: 0.161 | 0.562500K: 0.562 | 7.3lower decile | stablePP difference 4.8% | 116.146 km3,169 vertices · 1 part · 0 holes |
| PA · State House District 35GEOID 42035 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.158 | 0.583500K: 0.583 | 5.3lower decile | stablePP difference 3.2% | 81.895 km1,640 vertices · 1 part · 0 holes |
| IL · State House District 57GEOID 17057 · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.157 | 0.569500K: 0.569 | 5.3lower decile | stablePP difference 2.6% | 93.023 km2,572 vertices · 1 part · 0 holes |
| LA · State Senate District 28GEOID 22028 · effective 2024-01-01 | State legislative upper chamber | 0.153500K: 0.159 | 0.660500K: 0.660 | 7.4lower decile | stablePP difference 3.8% | 682.305 km10,384 vertices · 3 parts · 0 holes |
| TN · Congressional District 3GEOID 4703 · effective 2024-01-01 | U.S. House | 0.153500K: 0.158 | 0.649500K: 0.649 | 16.1lower quartile | stablePP difference 3.0% | 928.977 km17,370 vertices · 1 part · 2 holes |
| MD · State Legislative Subdistrict 12BGEOID 2412B · effective 2024-01-01 | State legislative lower chamber | 0.153500K: 0.158 | 0.444500K: 0.445 | 5.3lower decile | stablePP difference 3.0% | 58.554 km1,522 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 37BGEOID 2437B · effective 2024-01-01 | State legislative lower chamber | 0.154500K: 0.043 | 0.795500K: 0.635 | 5.4lower decile | resolution sensitivePP difference 72.1% | 608.425 km11,499 vertices · 1 part · 0 holes |
| KY · State Senate District 33GEOID 21033 · effective 2024-01-01 | State legislative upper chamber | 0.154500K: 0.158 | 0.516500K: 0.517 | 7.4lower decile | stablePP difference 2.9% | 100.971 km2,236 vertices · 1 part · 0 holes |
| TX · Congressional District 6GEOID 4806 · effective 2024-01-01 | U.S. House | 0.154500K: 0.161 | 0.619500K: 0.619 | 16.4lower quartile | stablePP difference 4.2% | 1,129.028 km20,107 vertices · 1 part · 0 holes |
| CA · Assembly District 51GEOID 06051 · effective 2024-01-01 | State legislative lower chamber | 0.154500K: 0.171 | 0.682500K: 0.679 | 5.4lower decile | stablePP difference 10.2% | 117.756 km2,694 vertices · 1 part · 0 holes |
| TX · Congressional District 37GEOID 4837 · effective 2024-01-01 | U.S. House | 0.154500K: 0.158 | 0.718500K: 0.718 | 16.6lower quartile | stablePP difference 2.5% | 219.266 km3,917 vertices · 1 part · 0 holes |
| MS · State House District 64GEOID 28064 · effective 2024-01-01 | State legislative lower chamber | 0.154500K: 0.158 | 0.650500K: 0.651 | 5.4lower decile | stablePP difference 2.5% | 62.22 km1,133 vertices · 1 part · 0 holes |
| CT · State Senate District 11GEOID 09011 · effective 2024-01-01 | State legislative upper chamber | 0.154500K: 0.165 | 0.556500K: 0.553 | 7.5lower decile | stablePP difference 6.3% | 73.714 km1,589 vertices · 1 part · 0 holes |
| TN · State House District 50GEOID 47050 · effective 2024-01-01 | State legislative lower chamber | 0.154500K: 0.160 | 0.591500K: 0.591 | 5.4lower decile | stablePP difference 3.7% | 185.431 km4,533 vertices · 1 part · 0 holes |
| MS · State Senate District 42GEOID 28042 · effective 2024-01-01 | State legislative upper chamber | 0.155500K: 0.159 | 0.634500K: 0.634 | 7.5lower decile | stablePP difference 2.7% | 394.83 km7,512 vertices · 1 part · 0 holes |
| NJ · State Senate District 40GEOID 34040 · effective 2024-01-01 | State legislative upper chamber | 0.155500K: 0.165 | 0.685500K: 0.686 | 7.6lower decile | stablePP difference 6.5% | 136.934 km5,058 vertices · 1 part · 0 holes |
| NJ · Assembly District 40GEOID 34040 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.165 | 0.685500K: 0.686 | 5.4lower decile | stablePP difference 6.5% | 136.934 km5,058 vertices · 1 part · 0 holes |
| TN · State House District 41GEOID 47041 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.160 | 0.595500K: 0.596 | 5.5lower decile | stablePP difference 3.2% | 529.015 km11,600 vertices · 1 part · 0 holes |
| LA · State House District 29GEOID 22029 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.156 | 0.460500K: 0.460 | 5.5lower decile | stablePP difference 1.2% | 119.385 km2,059 vertices · 1 part · 0 holes |
| WI · Assembly District 10GEOID 55010 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.167 | 0.591500K: 0.590 | 5.5lower decile | stablePP difference 7.6% | 50.796 km2,129 vertices · 1 part · 0 holes |
| MS · State House District 29GEOID 28029 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.156 | 0.589500K: 0.589 | 5.5lower decile | stablePP difference 0.7% | 357.384 km4,054 vertices · 1 part · 0 holes |
| AL · State House District 11GEOID 01011 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.161 | 0.736500K: 0.736 | 5.5lower decile | stablePP difference 3.9% | 319.796 km5,835 vertices · 1 part · 0 holes |
| TN · State House District 86GEOID 47086 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.156 | 0.512500K: 0.510 | 5.6lower decile | stablePP difference 0.8% | 218.748 km3,524 vertices · 1 part · 0 holes |
| LA · Congressional District 1GEOID 2201 · effective 2024-01-01 | U.S. House | 0.155500K: 0.036 | 0.696500K: 0.470 | 16.8lower quartile | resolution sensitivePP difference 76.8% | 1,336.252 km16,637 vertices · 1 part · 0 holes |
| CA · Assembly District 50GEOID 06050 · effective 2024-01-01 | State legislative lower chamber | 0.155500K: 0.160 | 0.636500K: 0.636 | 5.6lower decile | stablePP difference 2.9% | 158.369 km3,327 vertices · 1 part · 0 holes |
| IL · State House District 56GEOID 17056 · effective 2024-01-01 | State legislative lower chamber | 0.156500K: 0.158 | 0.557500K: 0.557 | 5.6lower decile | stablePP difference 1.5% | 91.832 km2,261 vertices · 1 part · 0 holes |
| IL · State House District 59GEOID 17059 · effective 2024-01-01 | State legislative lower chamber | 0.156500K: 0.161 | 0.514500K: 0.515 | 5.6lower decile | stablePP difference 3.3% | 90.539 km1,587 vertices · 1 part · 0 holes |
| MA · Norfolk-Plymouth-Bristol DistrictGEOID 25D33 · effective 2024-01-01 | State legislative upper chamber | 0.156500K: 0.160 | 0.518500K: 0.519 | 7.6lower decile | stablePP difference 2.8% | 158.589 km3,400 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