Federal Contribution Geography
Geographic concentration of federal campaign contributions.
Analyzes where campaign contributions originate geographically. State and city breakdowns show contribution concentration patterns, while race-level HHI (Herfindahl-Hirschman Index) measures how geographically concentrated each race's funding is. An HHI near 0 means funding is spread across many locations; an HHI near 1.0 means funding is concentrated in one area.
Top States
States ranked by total contribution amount from donors in that state.
| State | Total | Contributions | Donors |
|---|---|---|---|
| IL | $43,787,843.75 | 20434 | 10306 |
| MA | $35,331,539.69 | 21226 | 372 |
| DC | $3,977,472.06 | 2263 | 1085 |
| VA | $2,276,256.17 | 1381 | 461 |
| CA | $1,876,391.48 | 2100 | 1042 |
| NY | $1,337,189.85 | 1186 | 658 |
| TX | $1,097,854.80 | 826 | 474 |
| FL | $963,407.46 | 915 | 564 |
| GA | $751,105.08 | 236 | 136 |
| MD | $744,483.69 | 622 | 338 |
| PA | $388,398.73 | 416 | 188 |
| NJ | $311,952.72 | 379 | 196 |
| OH | $273,543.95 | 249 | 169 |
| WA | $271,804.17 | 379 | 182 |
| MO | $233,714.37 | 207 | 129 |
| CT | $228,399.22 | 279 | 123 |
| MI | $217,313.72 | 290 | 147 |
| CO | $209,413.60 | 227 | 154 |
| WI | $169,219.53 | 251 | 98 |
| IN | $158,556.53 | 231 | 117 |
Top Cities
Cities ranked by total contribution amount from donors in that city.
| City | State | Total | Contributions |
|---|---|---|---|
| Somerville | MA | $25,059,236.38 | 2113 |
| Schaumburg | IL | $20,314,722.18 | 174 |
| Chicago | IL | $8,578,858.76 | 6046 |
| West Somerville | MA | $8,233,241.85 | 16032 |
| Washington | DC | $3,972,122.06 | 2260 |
| Springfield | IL | $2,269,271.04 | 388 |
| Cambridge | MA | $1,355,214.04 | 2416 |
| Evanston | IL | $1,211,034.16 | 932 |
| Arlington | VA | $1,066,321.45 | 695 |
| Wilmette | IL | $984,710.84 | 422 |
| New York | NY | $848,586.41 | 619 |
| Alexandria | VA | $789,124.27 | 244 |
| Dundee | IL | $507,000.00 | 3 |
| Carol Stream | IL | $501,641.18 | 39 |
| Athens | GA | $500,330.63 | 8 |
| Highland Park | IL | $488,962.04 | 488 |
| Winnetka | IL | $463,201.65 | 268 |
| Oak Park | IL | $436,270.14 | 356 |
| South Barrington | IL | $407,649.99 | 196 |
| Naperville | IL | $332,185.95 | 472 |
| Glencoe | IL | $307,752.50 | 235 |
| Silver Spring | MD | $248,386.48 | 62 |
| Northbrook | IL | $235,781.20 | 228 |
| San Francisco | CA | $220,868.17 | 269 |
| Lake Forest | IL | $208,136.73 | 157 |
Race Geographic Concentration
HHI (Herfindahl-Hirschman Index) measures geographic concentration of funding per race. Values range from 0 (perfectly distributed) to 1.0 (all funding from one location). Races with high HHI may indicate strong local donor bases; low HHI suggests broad geographic appeal.
| Race | Total | Donors | States | HHI |
|---|---|---|---|---|
| U.S. House - IL-08 | $23,651,101.17 | 40 | 7090.6 | |
| U.S. Senate - Statewide | $37,219,458.65 | 52 | 6073.47 | |
| U.S. House - IL-07 | $3,667,017.42 | 38 | 4425.44 | |
| U.S. House - IL-09 | $12,277,138.84 | 49 | 4377.47 | |
| U.S. House - IL-15 | $704,515.58 | 35 | 3904.26 | |
| U.S. House - IL-02 | $1,427,522.03 | 39 | 3300.82 | |
| U.S. House - IL-03 | $1,470,425.99 | 37 | 2435.93 | |
| U.S. House - IL-14 | $1,872,943.55 | 37 | 2404.99 | |
| U.S. House - IL-01 | $174,427.90 | 18 | 2236.95 | |
| U.S. House - IL-10 | $2,377,936.24 | 47 | 2183.65 | |
| U.S. House - IL-06 | $1,577,550.08 | 46 | 2178.98 | |
| U.S. House - IL-13 | $2,165,958.38 | 40 | 2076.76 | |
| U.S. House - IL-05 | $481,307.55 | 24 | 2043.92 | |
| U.S. House - IL-11 | $1,505,057.31 | 39 | 1919.04 | |
| U.S. House - IL-17 | $1,694,422.33 | 40 | 1917.03 |