Jones County, Iowa
Precinct data
Results by precinct
14 precincts · 10,949 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Anamosa South/JacksonAnamosa South/Jackson | 688 | 969 | 32 | 1,689 | 40.7% | 57.4% | R+16.6 |
|---|---|---|---|---|---|---|---|
| Precinct -FairviewFairview | 486 | 827 | 25 | 1,338 | 36.3% | 61.8% | R+25.5 |
| Precinct -Castle Grove/Lovell/WayneCastle Grove/Lovell/Wayne | 437 | 851 | 20 | 1,308 | 33.4% | 65.1% | R+31.7 |
| Precinct -Anamosa North/CassAnamosa North/Cass | 486 | 741 | 21 | 1,248 | 38.9% | 59.4% | R+20.4 |
| Precinct -Rome/HaleRome/Hale | 245 | 504 | 10 | 759 | 32.3% | 66.4% | R+34.1 |
| Precinct -Richland/WashingtonRichland/Washington | 202 | 513 | 8 | 723 | 27.9% | 71.0% | R+43.0 |
| Precinct -Scotch Grove/Madison/ClayScotch Grove/Madison/Clay | 176 | 515 | 10 | 701 | 25.1% | 73.5% | R+48.4 |
| Precinct -Monticello 2Monticello 2 | 238 | 342 | 8 | 588 | 40.5% | 58.2% | R+17.7 |
| Precinct -Monticello 3Monticello 3 | 255 | 265 | 10 | 530 | 48.1% | 50.0% | R+1.9 |
| Precinct -Monticello 4Monticello 4 | 215 | 241 | 15 | 471 | 45.6% | 51.2% | R+5.5 |
| Precinct -WyomingWyoming | 116 | 318 | 4 | 438 | 26.5% | 72.6% | R+46.1 |
| Precinct -GreenfieldGreenfield | 144 | 254 | 15 | 413 | 34.9% | 61.5% | R+26.6 |
| Precinct -Monticello 1Monticello 1 | 147 | 244 | 5 | 396 | 37.1% | 61.6% | R+24.5 |
| Precinct -OxfordOxford | 107 | 236 | 4 | 347 | 30.8% | 68.0% | R+37.2 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +0.4% |
| 1896 | −17.3% |
| 1900 | −18.8% |
| 1904 | −20.9% |
| 1908 | −5.9% |
| 1912 | +12.4% |
| 1916 | −18.2% |
| 1920 | −41.7% |
| 1924 | −29.2% |
| 1928 | −26.1% |
| 1932 | +17.1% |
| 1936 | +9.7% |
| 1940 | −13.7% |
| 1944 | −11.1% |
| 1948 | −4.5% |
| 1952 | −33.9% |
| 1956 | −25.1% |
| 1960 | −17.1% |
| 1964 | +27.2% |
| 1968 | −13.1% |
| 1972 | −17.5% |
| 1976 | −2.5% |
| 1980 | −11.1% |
| 1984 | −12.3% |
| 1988 | +14.0% |
| 1992 | +4.9% |
| 1996 | +18.5% |
| 2000 | +5.3% |
| 2004 | +2.2% |
| 2008 | +10.4% |
| 2012 | +7.8% |
| 2016 | −18.9% |
| 2020 | −21.5% |
| 2024 | −26.2% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 37.3%3,041 | 62.7%5,118 | 8,159 |
| 2020 | R | 38.9%4,237 | 58.0%6,320 | 10,898 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 10.0 points more Democratic.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 13,939 | 4,327 | 3,651 | 5,958 | 3 |
| 2010 | 14,047 | 4,047 | 3,893 | 6,100 | 7 |
| 2012 | 13,922 | 3,793 | 3,846 | 6,274 | 9 |
| 2014 | 13,704 | 3,505 | 3,852 | 6,331 | 16 |
| 2016 | 13,688 | 3,373 | 3,940 | 6,344 | 31 |
| 2018 | 13,694 | 3,188 | 4,098 | 6,365 | 43 |
| 2020 | 14,096 | 3,490 | 4,811 | 5,731 | 64 |
| 2022 | 14,092 | 3,203 | 5,075 | 5,737 | 77 |
| 2024 | 14,292 | 2,994 | 5,316 | 5,900 | 82 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+89 net domestic migration · 2025
Net +522 over 2011–2025 · gain loss
Arrivals reported $63,867 in average income, against $83,589 for residents who stayed — 24% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+5.4 on average — 32 points more Democratic-leaning than Jones County, IA itself (R+26.2).
Where arrivals came from lean of each source
- Linn County, IA154D+9.9
- Dubuque County, IA49R+8.6
Where departures went households, 2022–23
- Linn County, IA164
- Dubuque County, IA46
- Cedar County, IA22
- Delaware County, IA22
- Polk County, IA21
- Johnson County, IA20
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | +25 |
| 2012 | −129 |
| 2013 | −107 |
| 2014 | +2 |
| 2015 | −147 |
| 2016 | −53 |
| 2017 | +185 |
| 2018 | +32 |
| 2019 | +1 |
| 2021 | +233 |
| 2022 | +182 |
| 2023 | −18 |
| 2024 | +227 |
| 2025 | +89 |
Jones County's population of roughly 20,000 is concentrated in small agricultural towns like Anamosa, and its presidential margins have widened consistently over the past four cycles, reaching R+26 in 2024.
Across the recorded series it reached a Democratic high of 27.2 points in 1964 and a Republican high of 41.7 points in 1920. Between 2020 and 2024 the county moved 4.7 points toward the Republican candidate; the 2024 margin was 26.2 points.
A population of 20,896, a 92% non-Hispanic-white share, and a median household income of $73,531 describe the county. The county's voting pattern over the last decade is most similar to that of Buchanan County and Lee County.
The counties 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.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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 →
Jones County, Iowa. Akashic. https://akashic.app/county/19105/. Accessed May 20, 2026. License: CC BY 4.0.