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 1,801–1,900 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| LA · State House District 44GEOID 22044 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.239 | 0.655500K: 0.655 | 22.3lower quartile | stablePP difference 1.1% | 67.168 km1,056 vertices · 1 part · 0 holes |
| LA · State House District 51GEOID 22051 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.240 | 0.704500K: 0.704 | 22.3lower quartile | stablePP difference 1.6% | 288.205 km2,658 vertices · 1 part · 0 holes |
| LA · State House District 49GEOID 22049 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.152 | 0.687500K: 0.497 | 22.3lower quartile | resolution sensitivePP difference 35.7% | 342.877 km1,723 vertices · 1 part · 0 holes |
| MA · 15th Worcester DistrictGEOID 25156 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.244 | 0.706500K: 0.707 | 22.3lower quartile | stablePP difference 3.3% | 24.036 km543 vertices · 1 part · 0 holes |
| CA · Assembly District 23GEOID 06023 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.202 | 0.709500K: 0.663 | 22.3lower quartile | stablePP difference 14.4% | 298.255 km4,597 vertices · 1 part · 0 holes |
| FL · State House District 1GEOID 12001 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.282 | 0.640500K: 0.641 | 22.4lower quartile | stablePP difference 16.3% | 280.077 km5,659 vertices · 1 part · 0 holes |
| AR · State House District 40GEOID 05040 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.248 | 0.731500K: 0.731 | 22.4lower quartile | stablePP difference 4.7% | 241.733 km4,907 vertices · 1 part · 0 holes |
| GA · State House District 118GEOID 13118 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.243 | 0.661500K: 0.661 | 22.4lower quartile | stablePP difference 2.9% | 250.446 km6,315 vertices · 1 part · 0 holes |
| SC · State House District 11GEOID 45011 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.241 | 0.668500K: 0.668 | 22.4lower quartile | stablePP difference 2.2% | 306.577 km5,132 vertices · 1 part · 0 holes |
| OR · State Senate District 23GEOID 41023 · effective 2024-01-01 | State legislative upper chamber | 0.236500K: 0.242 | 0.553500K: 0.554 | 27.5middle or higher | stablePP difference 2.3% | 57.37 km783 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 5GEOID 53005 · effective 2024-01-01 | State legislative upper chamber | 0.236500K: 0.247 | 0.772500K: 0.772 | 27.6middle or higher | stablePP difference 4.4% | 325.838 km9,225 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 5GEOID 53005 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.247 | 0.772500K: 0.772 | 22.4lower quartile | stablePP difference 4.4% | 325.838 km9,225 vertices · 1 part · 0 holes |
| GA · State House District 101GEOID 13101 · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.243 | 0.655500K: 0.655 | 22.4lower quartile | stablePP difference 2.8% | 46.05 km951 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 9BGEOID 2409B · effective 2024-01-01 | State legislative lower chamber | 0.236500K: 0.247 | 0.645500K: 0.647 | 22.5lower quartile | stablePP difference 4.5% | 52.451 km1,500 vertices · 1 part · 0 holes |
| KY · State House District 33GEOID 21033 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.243 | 0.682500K: 0.682 | 22.5lower quartile | stablePP difference 2.8% | 80.915 km2,813 vertices · 1 part · 0 holes |
| OR · State Senate District 26GEOID 41026 · effective 2024-01-01 | State legislative upper chamber | 0.237500K: 0.243 | 0.723500K: 0.723 | 27.6middle or higher | stablePP difference 2.6% | 446.588 km5,269 vertices · 1 part · 0 holes |
| MS · State House District 11GEOID 28011 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.239 | 0.725500K: 0.725 | 22.5lower quartile | stablePP difference 0.8% | 260.365 km4,454 vertices · 1 part · 0 holes |
| NY · Assembly District 114GEOID 36114 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.242 | 0.725500K: 0.725 | 22.5lower quartile | stablePP difference 2.3% | 673.088 km4,642 vertices · 1 part · 0 holes |
| MS · State House District 59GEOID 28059 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.241 | 0.719500K: 0.721 | 22.6lower quartile | stablePP difference 1.5% | 74.258 km1,039 vertices · 1 part · 0 holes |
| MA · 17th Worcester DistrictGEOID 25158 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.246 | 0.669500K: 0.669 | 22.6lower quartile | stablePP difference 3.6% | 46.32 km1,124 vertices · 1 part · 0 holes |
| KY · State House District 90GEOID 21090 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.253 | 0.798500K: 0.798 | 22.6lower quartile | stablePP difference 6.2% | 362.138 km8,979 vertices · 1 part · 0 holes |
| PA · State House District 153GEOID 42153 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.242 | 0.819500K: 0.820 | 22.6lower quartile | stablePP difference 2.0% | 53.019 km1,153 vertices · 1 part · 0 holes |
| PA · State Senate District 1GEOID 42001 · effective 2024-01-01 | State legislative upper chamber | 0.237500K: 0.240 | 0.638500K: 0.638 | 27.7middle or higher | stablePP difference 1.3% | 60.417 km954 vertices · 1 part · 0 holes |
| MO · State House District 124GEOID 29124 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.239 | 0.701500K: 0.701 | 22.6lower quartile | stablePP difference 0.7% | 337.306 km2,737 vertices · 1 part · 0 holes |
| WI · Assembly District 33GEOID 55033 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.243 | 0.665500K: 0.665 | 22.7lower quartile | stablePP difference 2.2% | 199.176 km2,217 vertices · 1 part · 0 holes |
| MT · State House District 32GEOID 30032 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.242 | 0.750500K: 0.750 | 22.7lower quartile | stablePP difference 2.0% | 853.214 km9,745 vertices · 1 part · 0 holes |
| IA · State Senate District 33GEOID 19033 · effective 2024-01-01 | State legislative upper chamber | 0.237500K: 0.240 | 0.730500K: 0.730 | 27.8middle or higher | stablePP difference 1.3% | 466.266 km3,856 vertices · 1 part · 0 holes |
| MD · State Senate District 9GEOID 24009 · effective 2024-01-01 | State legislative upper chamber | 0.237500K: 0.252 | 0.674500K: 0.674 | 27.8middle or higher | stablePP difference 6.0% | 160.688 km5,677 vertices · 1 part · 0 holes |
| SC · State House District 118GEOID 45118 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.248 | 0.726500K: 0.727 | 22.7lower quartile | stablePP difference 4.4% | 78.954 km1,578 vertices · 1 part · 0 holes |
| OR · State House District 1GEOID 41001 · effective 2024-01-01 | State legislative lower chamber | 0.237500K: 0.230 | 0.737500K: 0.723 | 22.7lower quartile | stablePP difference 3.3% | 734.692 km15,314 vertices · 1 part · 0 holes |
| CT · State Senate District 1GEOID 09001 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.244 | 0.726500K: 0.727 | 27.9middle or higher | stablePP difference 2.7% | 53.574 km1,017 vertices · 1 part · 0 holes |
| IL · State House District 98GEOID 17098 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.242 | 0.613500K: 0.613 | 22.7lower quartile | stablePP difference 1.9% | 72.562 km1,536 vertices · 1 part · 0 holes |
| TX · State House District 149GEOID 48149 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.247 | 0.653500K: 0.653 | 22.8lower quartile | stablePP difference 3.6% | 85.407 km1,405 vertices · 1 part · 0 holes |
| MA · 16th Essex DistrictGEOID 25039 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.271 | 0.646500K: 0.647 | 22.8lower quartile | stablePP difference 12.3% | 28.594 km1,012 vertices · 1 part · 0 holes |
| MO · State House District 11GEOID 29011 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.242 | 0.660500K: 0.660 | 22.8lower quartile | stablePP difference 1.6% | 109.761 km1,363 vertices · 1 part · 0 holes |
| SC · State House District 109GEOID 45109 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.246 | 0.703500K: 0.705 | 22.8lower quartile | stablePP difference 3.4% | 52.391 km1,379 vertices · 1 part · 0 holes |
| GA · State House District 90GEOID 13090 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.251 | 0.719500K: 0.720 | 22.8lower quartile | stablePP difference 5.3% | 57.163 km1,034 vertices · 1 part · 0 holes |
| VA · State House District 35GEOID 51035 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.250 | 0.726500K: 0.727 | 22.9lower quartile | stablePP difference 4.7% | 519.688 km12,779 vertices · 1 part · 0 holes |
| MO · State House District 109GEOID 29109 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.242 | 0.579500K: 0.579 | 22.9lower quartile | stablePP difference 1.6% | 202.013 km2,915 vertices · 1 part · 0 holes |
| GA · State House District 97GEOID 13097 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.242 | 0.670500K: 0.670 | 22.9lower quartile | stablePP difference 1.8% | 55.899 km1,237 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 13GEOID 53013 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.241 | 0.664500K: 0.664 | 27.9middle or higher | stablePP difference 1.4% | 840.641 km18,499 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 13GEOID 53013 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.241 | 0.664500K: 0.664 | 22.9lower quartile | stablePP difference 1.4% | 840.641 km18,499 vertices · 1 part · 0 holes |
| WV · Delegate District 77GEOID 54077 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.243 | 0.683500K: 0.684 | 22.9lower quartile | stablePP difference 1.9% | 182.147 km3,582 vertices · 1 part · 0 holes |
| KY · State House District 36GEOID 21036 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.245 | 0.767500K: 0.768 | 23.0lower quartile | stablePP difference 2.8% | 92.254 km2,638 vertices · 1 part · 0 holes |
| SC · State House District 99GEOID 45099 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.245 | 0.634500K: 0.634 | 23.0lower quartile | stablePP difference 3.0% | 87.335 km1,345 vertices · 1 part · 0 holes |
| VA · State House District 68GEOID 51068 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.149 | 0.749500K: 0.737 | 23.0lower quartile | resolution sensitivePP difference 37.5% | 473.386 km6,392 vertices · 1 part · 0 holes |
| TN · State House District 10GEOID 47010 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.244 | 0.806500K: 0.806 | 23.0lower quartile | stablePP difference 2.3% | 229.044 km4,203 vertices · 1 part · 0 holes |
| MA · 12th Suffolk DistrictGEOID 25134 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.242 | 0.666500K: 0.666 | 23.1lower quartile | stablePP difference 1.8% | 23.742 km614 vertices · 1 part · 0 holes |
| NM · State House District 40GEOID 35040 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.243 | 0.720500K: 0.721 | 23.1lower quartile | stablePP difference 2.1% | 877.236 km12,403 vertices · 1 part · 0 holes |
| VT · Essex Senatorial DistrictGEOID 50ESX · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.246 | 0.682500K: 0.681 | 27.9middle or higher | stablePP difference 3.3% | 345.595 km3,867 vertices · 1 part · 0 holes |
| NY · State Senate District 37GEOID 36037 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.217 | 0.553500K: 0.570 | 28.0middle or higher | stablePP difference 8.9% | 138.683 km3,071 vertices · 1 part · 0 holes |
| AR · State Senate District 8GEOID 05008 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.244 | 0.785500K: 0.785 | 28.1middle or higher | stablePP difference 2.5% | 629.95 km8,757 vertices · 1 part · 0 holes |
| SC · State Senate District 14GEOID 45014 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.244 | 0.761500K: 0.761 | 28.1middle or higher | stablePP difference 2.3% | 328.234 km5,352 vertices · 1 part · 0 holes |
| WV · State Senate District 13GEOID 54013 · effective 2024-01-01 | State legislative upper chamber | 0.238500K: 0.249 | 0.711500K: 0.711 | 28.2middle or higher | stablePP difference 4.2% | 168.944 km4,134 vertices · 1 part · 0 holes |
| CA · Congressional District 9GEOID 0609 · effective 2024-01-01 | U.S. House | 0.238500K: 0.250 | 0.810500K: 0.810 | 40.2middle or higher | stablePP difference 4.5% | 434.399 km7,173 vertices · 1 part · 0 holes |
| WI · Assembly District 85GEOID 55085 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.258 | 0.718500K: 0.718 | 23.1lower quartile | stablePP difference 7.7% | 108.347 km1,687 vertices · 1 part · 0 holes |
| VA · State House District 51GEOID 51051 · effective 2024-01-01 | State legislative lower chamber | 0.238500K: 0.248 | 0.739500K: 0.740 | 23.1lower quartile | stablePP difference 3.8% | 358.048 km9,187 vertices · 1 part · 0 holes |
| MS · State House District 50GEOID 28050 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.241 | 0.687500K: 0.687 | 23.1lower quartile | stablePP difference 1.1% | 350.36 km4,213 vertices · 1 part · 0 holes |
| LA · State House District 67GEOID 22067 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.242 | 0.555500K: 0.555 | 23.1lower quartile | stablePP difference 1.3% | 61.615 km1,283 vertices · 1 part · 0 holes |
| IL · State House District 114GEOID 17114 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.243 | 0.734500K: 0.734 | 23.2lower quartile | stablePP difference 1.7% | 242.69 km2,312 vertices · 1 part · 0 holes |
| MS · State House District 44GEOID 28044 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.260 | 0.842500K: 0.842 | 23.2lower quartile | stablePP difference 8.1% | 258.543 km7,100 vertices · 1 part · 0 holes |
| NY · Assembly District 31GEOID 36031 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.260 | 0.757500K: 0.755 | 23.2lower quartile | stablePP difference 8.2% | 52.221 km937 vertices · 1 part · 0 holes |
| GA · State House District 2GEOID 13002 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.242 | 0.706500K: 0.706 | 23.2lower quartile | stablePP difference 1.4% | 219.006 km3,537 vertices · 1 part · 0 holes |
| CA · Assembly District 4GEOID 06004 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.246 | 0.745500K: 0.745 | 23.3lower quartile | stablePP difference 3.0% | 767.545 km16,462 vertices · 1 part · 0 holes |
| NV · Assembly District 39GEOID 32039 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.243 | 0.675500K: 0.675 | 23.3lower quartile | stablePP difference 1.8% | 382.307 km5,132 vertices · 1 part · 0 holes |
| MT · State House District 65GEOID 30065 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.252 | 0.600500K: 0.600 | 23.3lower quartile | stablePP difference 5.3% | 56.963 km1,187 vertices · 1 part · 0 holes |
| CT · State Senate District 17GEOID 09017 · effective 2024-01-01 | State legislative upper chamber | 0.239500K: 0.245 | 0.693500K: 0.693 | 28.2middle or higher | stablePP difference 2.5% | 109.527 km1,971 vertices · 1 part · 0 holes |
| ME · State House District 66GEOID 23066 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.246 | 0.623500K: 0.624 | 23.3lower quartile | stablePP difference 2.9% | 125.162 km2,099 vertices · 1 part · 0 holes |
| WI · Assembly District 65GEOID 55065 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.312 | 0.695500K: 0.697 | 23.3lower quartile | resolution sensitivePP difference 23.4% | 53.044 km2,954 vertices · 1 part · 0 holes |
| GA · State House District 174GEOID 13174 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.279 | 0.750500K: 0.751 | 23.4lower quartile | stablePP difference 14.2% | 661.535 km14,209 vertices · 1 part · 0 holes |
| CO · State Senate District 24GEOID 08024 · effective 2024-01-01 | State legislative upper chamber | 0.239500K: 0.249 | 0.753500K: 0.753 | 28.3middle or higher | stablePP difference 3.8% | 89.453 km1,352 vertices · 1 part · 0 holes |
| SC · State House District 28GEOID 45028 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.245 | 0.735500K: 0.735 | 23.4lower quartile | stablePP difference 2.4% | 130.46 km2,923 vertices · 1 part · 0 holes |
| NM · State House District 49GEOID 35049 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.245 | 0.683500K: 0.683 | 23.4lower quartile | stablePP difference 2.3% | 1,353.82 km17,386 vertices · 1 part · 0 holes |
| VA · State House District 97GEOID 51097 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.247 | 0.607500K: 0.608 | 23.4lower quartile | stablePP difference 3.1% | 51.709 km1,125 vertices · 1 part · 0 holes |
| NY · Assembly District 71GEOID 36071 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.240 | 0.608500K: 0.606 | 23.4lower quartile | stablePP difference 0.3% | 24.155 km323 vertices · 1 part · 0 holes |
| CT · State House District 97GEOID 09097 · effective 2024-01-01 | State legislative lower chamber | 0.239500K: 0.272 | 0.632500K: 0.673 | 23.5lower quartile | stablePP difference 12.0% | 26.55 km617 vertices · 1 part · 0 holes |
| WV · State Senate District 9GEOID 54009 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.255 | 0.791500K: 0.791 | 28.3middle or higher | stablePP difference 6.0% | 404.503 km10,283 vertices · 1 part · 0 holes |
| NM · State Senate District 19GEOID 35019 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.246 | 0.731500K: 0.731 | 28.4middle or higher | stablePP difference 2.8% | 395.448 km6,395 vertices · 1 part · 0 holes |
| PA · State House District 42GEOID 42042 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.258 | 0.739500K: 0.742 | 23.5lower quartile | stablePP difference 7.1% | 43.524 km1,134 vertices · 1 part · 0 holes |
| UT · State House District 64GEOID 49064 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.253 | 0.677500K: 0.677 | 23.5lower quartile | stablePP difference 5.2% | 93.052 km1,930 vertices · 1 part · 0 holes |
| MA · First Worcester DistrictGEOID 25D09 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.243 | 0.605500K: 0.605 | 28.4middle or higher | stablePP difference 1.3% | 120.413 km1,315 vertices · 1 part · 0 holes |
| CT · State Senate District 28GEOID 09028 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.249 | 0.649500K: 0.647 | 28.5middle or higher | stablePP difference 3.8% | 133.098 km2,992 vertices · 1 part · 0 holes |
| TN · State House District 16GEOID 47016 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.246 | 0.697500K: 0.697 | 23.5lower quartile | stablePP difference 2.4% | 88.827 km2,928 vertices · 1 part · 0 holes |
| MO · State House District 108GEOID 29108 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.253 | 0.745500K: 0.747 | 23.5lower quartile | stablePP difference 5.3% | 46.942 km1,105 vertices · 1 part · 0 holes |
| SC · State House District 60GEOID 45060 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.247 | 0.764500K: 0.764 | 23.6lower quartile | stablePP difference 2.9% | 247.432 km3,132 vertices · 1 part · 0 holes |
| KY · State House District 39GEOID 21039 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.250 | 0.686500K: 0.686 | 23.6lower quartile | stablePP difference 4.1% | 81.945 km2,306 vertices · 1 part · 0 holes |
| CA · Assembly District 43GEOID 06043 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.247 | 0.721500K: 0.722 | 23.6lower quartile | stablePP difference 2.6% | 84.443 km1,143 vertices · 1 part · 0 holes |
| SC · State House District 3GEOID 45003 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.251 | 0.766500K: 0.767 | 23.6lower quartile | stablePP difference 4.2% | 111.271 km1,978 vertices · 1 part · 0 holes |
| OH · State Senate District 3GEOID 39003 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.246 | 0.707500K: 0.707 | 28.5middle or higher | stablePP difference 2.4% | 400.615 km5,828 vertices · 1 part · 0 holes |
| CA · Assembly District 44GEOID 06044 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.254 | 0.684500K: 0.684 | 23.6lower quartile | stablePP difference 5.3% | 116.503 km2,912 vertices · 1 part · 0 holes |
| AL · State House District 6GEOID 01006 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.243 | 0.771500K: 0.772 | 23.7lower quartile | stablePP difference 1.0% | 140.604 km1,815 vertices · 1 part · 0 holes |
| FL · State Senate District 4GEOID 12004 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.264 | 0.740500K: 0.745 | 28.6middle or higher | stablePP difference 8.9% | 435.072 km6,751 vertices · 1 part · 0 holes |
| AK · State House District 25GEOID 02025 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.246 | 0.646500K: 0.646 | 23.7lower quartile | stablePP difference 2.5% | 167.76 km1,675 vertices · 1 part · 0 holes |
| NM · State House District 20GEOID 35020 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.249 | 0.709500K: 0.710 | 23.7lower quartile | stablePP difference 3.5% | 51.637 km1,036 vertices · 1 part · 0 holes |
| CO · State House District 64GEOID 08064 · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.243 | 0.678500K: 0.678 | 23.7lower quartile | stablePP difference 1.2% | 159.124 km1,666 vertices · 1 part · 0 holes |
| MN · State Senate District 14GEOID 27014 · effective 2024-01-01 | State legislative upper chamber | 0.240500K: 0.251 | 0.723500K: 0.723 | 28.6middle or higher | stablePP difference 4.2% | 130.413 km2,498 vertices · 1 part · 0 holes |
| MN · State House District 22BGEOID 2722B · effective 2024-01-01 | State legislative lower chamber | 0.240500K: 0.244 | 0.701500K: 0.701 | 23.8lower quartile | stablePP difference 1.5% | 304.86 km3,513 vertices · 1 part · 0 holes |
| WV · Delegate District 98GEOID 54098 · effective 2024-01-01 | State legislative lower chamber | 0.241500K: 0.251 | 0.786500K: 0.786 | 23.8lower quartile | stablePP difference 4.1% | 111.399 km2,175 vertices · 1 part · 0 holes |
| SC · State House District 76GEOID 45076 · effective 2024-01-01 | State legislative lower chamber | 0.241500K: 0.242 | 0.596500K: 0.596 | 23.8lower quartile | stablePP difference 0.7% | 50.409 km1,276 vertices · 1 part · 0 holes |
| MA · 3rd Barnstable DistrictGEOID 25003 · effective 2024-01-01 | State legislative lower chamber | 0.241500K: 0.195 | 0.742500K: 0.712 | 23.8lower quartile | stablePP difference 18.9% | 109.909 km2,657 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