Arizona 3rd Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +32.7% |
| 2012 | +47.8% |
| 2016 | +50.0% |
| 2020 | +50.7% |
| 2024 | +39.8% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 3 | D | 70.9%143,336 | 26.6%53,705 | 202,065 |
| 2022 | 3 | D | 77.0%108,599 | 23.0%32,475 | 141,074 |
| 2020 | 3 | D | 64.6%174,243 | 35.4%95,594 | 269,837 |
| 2018 | 3 | D | 63.9%114,650 | 36.1%64,868 | 179,518 |
| 2016 | 3 | D | 98.6%148,973 | 0.2%332 | 151,035 |
| 2014 | 3 | D | 55.7%58,192 | 44.2%46,185 | 104,428 |
| 2012 | 3 | D | 58.4%98,468 | 37.1%62,663 | 168,698 |
| 2010 | 3 | R | 41.1%85,610 | 52.2%108,689 | 208,071 |
| 2008 | 3 | R | 42.1%115,759 | 54.1%148,800 | 275,161 |
| 2006 | 3 | R | 38.2%72,586 | 59.3%112,519 | 189,849 |
| 2004 | 3 | R | 0.0%0 | 80.1%181,012 | 225,974 |
| 2002 | 3 | R | 30.3%47,173 | 67.3%104,847 | 155,751 |
| 2000 | 3 | R | 31.4%94,676 | 65.7%198,367 | 301,970 |
| 1998 | 3 | R | 32.7%66,979 | 67.3%137,618 | 204,623 |
| 1996 | 3 | R | 33.5%88,214 | 66.5%175,231 | 263,445 |
| 1994 | 3 | R | 29.9%61,939 | 70.1%145,396 | 207,335 |
| 1992 | 3 | R | 34.4%88,830 | 61.5%158,906 | 258,503 |
| 1990 | 3 | R | 43.4%103,018 | 56.6%134,279 | 237,297 |
| 1988 | 3 | R | 28.6%72,417 | 68.9%174,453 | 253,330 |
| 1986 | 3 | R | 0.0%0 | 100.0%146,462 | 146,462 |
| 1984 | 3 | R | 26.5%57,748 | 71.8%156,686 | 218,328 |
| 1982 | 3 | R | 36.7%58,644 | 63.3%101,198 | 159,842 |
| 1980 | 3 | D | 64.3%141,448 | 30.0%65,845 | 219,822 |
| 1978 | 3 | D | 85.0%111,850 | 0.0%0 | 131,663 |
| 1976 | 3 | D | 47.5%88,854 | 42.3%79,162 | 187,165 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 50.1%1,676,335 | 47.7%1,595,761 | 3,347,964 |
| 2022 | D | 51.4%1,322,027 | 46.5%1,196,328 | 2,572,294 |
| 2020 | D | 51.2%1,716,634 | 48.8%1,638,060 | 3,355,307 |
| 2018 | D | 50.0%1,191,100 | 47.6%1,135,200 | 2,383,742 |
| 2016 | R | 40.8%1,031,245 | 53.8%1,359,761 | 2,529,768 |
| 2012 | R | 46.2%1,036,542 | 49.2%1,104,457 | 2,243,108 |
| 2010 | R | 34.8%592,011 | 59.1%1,005,615 | 1,702,326 |
| 2006 | R | 43.5%664,141 | 53.3%814,398 | 1,526,770 |
| 2004 | R | 20.6%404,507 | 76.7%1,505,372 | 1,961,677 |
| 2000 | R | 0.0%0 | 79.3%1,108,196 | 1,397,076 |
| 1998 | R | 27.2%275,224 | 68.8%696,577 | 1,013,093 |
| 1994 | R | 39.5%442,510 | 53.7%600,999 | 1,119,002 |
| 1992 | R | 31.6%436,321 | 55.8%771,395 | 1,382,025 |
| 1988 | D | 56.7%660,403 | 41.1%478,060 | 1,164,507 |
| 1986 | R | 39.5%340,965 | 60.5%521,850 | 862,815 |
| 1982 | D | 56.9%411,970 | 40.3%291,749 | 723,819 |
| 1980 | R | 48.4%422,972 | 49.5%432,371 | 874,225 |
| 1976 | D | 54.0%400,334 | 43.3%321,236 | 741,210 |
Arizona's 3rd anchors in west Phoenix and its inner suburbs, where a heavily Latino electorate has delivered Democratic presidential margins exceeding 14 points, making it one of the more reliably left-leaning seats in the state's congressional map.
Across the recorded series it reached a Democratic high of 50.7 points in 2020. Between 2020 and 2024 the district moved 10.9 points toward the Republican candidate; the 2024 margin was 39.8 points.
A population of 794,612, a 31% non-Hispanic-white share, and a median household income of $68,202 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 7 and Congressional District 29.
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Arizona 3rd Congressional District. Akashic. https://akashic.app/cd/0403/. Accessed May 20, 2026. License: CC BY 4.0.