Story County, Iowa
Precinct data
Results by precinct
45 precincts · 49,200 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Ames 08Ames 08 | 1,209 | 591 | 36 | 1,836 | 65.8% | 32.2% | D+33.7 |
|---|---|---|---|---|---|---|---|
| Precinct -Ames 09Ames 09 | 1,175 | 587 | 29 | 1,791 | 65.6% | 32.8% | D+32.8 |
| Precinct -Ames 07Ames 07 | 1,020 | 718 | 19 | 1,757 | 58.1% | 40.9% | D+17.2 |
| Precinct -Ames 04Ames 04 | 982 | 725 | 30 | 1,737 | 56.5% | 41.7% | D+14.8 |
| Precinct -Ames 11Ames 11 | 1,121 | 578 | 17 | 1,716 | 65.3% | 33.7% | D+31.6 |
| Precinct -Franklin TwpFranklin Twp | 813 | 888 | 15 | 1,716 | 47.4% | 51.7% | R+4.4 |
| Precinct -Huxley 2/Palestine TwpHuxley 2/Palestine Twp | 640 | 985 | 20 | 1,645 | 38.9% | 59.9% | R+21.0 |
| Precinct -Ames 02Ames 02 | 1,186 | 401 | 30 | 1,617 | 73.3% | 24.8% | D+48.5 |
| Precinct -Ames 10Ames 10 | 1,104 | 454 | 30 | 1,588 | 69.5% | 28.6% | D+40.9 |
| Precinct -Huxley 1/Union Twp 2Huxley 1/Union Twp 2 | 630 | 792 | 23 | 1,445 | 43.6% | 54.8% | R+11.2 |
| Precinct -Nevada 4/Nevada TwpNevada 4/Nevada Twp | 638 | 773 | 18 | 1,429 | 44.6% | 54.1% | R+9.4 |
| Precinct -Ames 12Ames 12 | 842 | 566 | 13 | 1,421 | 59.3% | 39.8% | D+19.4 |
| Precinct -Ames 05Ames 05 | 866 | 510 | 17 | 1,393 | 62.2% | 36.6% | D+25.6 |
| Precinct -Ames 16Ames 16 | 843 | 462 | 22 | 1,327 | 63.5% | 34.8% | D+28.7 |
| Precinct -Ames 03Ames 03 | 819 | 480 | 27 | 1,326 | 61.8% | 36.2% | D+25.6 |
| Precinct -Story City 2/Lafayette Twp/Howard Twp 2Story City 2/Lafayette Twp/Howard Twp 2 | 520 | 731 | 12 | 1,263 | 41.2% | 57.9% | R+16.7 |
| Precinct -Ames 23Ames 23 | 818 | 394 | 25 | 1,237 | 66.1% | 31.9% | D+34.3 |
| Precinct -Ames 24Ames 24 | 753 | 408 | 16 | 1,177 | 64.0% | 34.7% | D+29.3 |
| Precinct -Ames 14Ames 14 | 710 | 410 | 16 | 1,136 | 62.5% | 36.1% | D+26.4 |
| Precinct -Roland/Howard TwpRoland/Howard Twp | 439 | 670 | 16 | 1,125 | 39.0% | 59.6% | R+20.5 |
| Precinct -Ames 22Ames 22 | 779 | 311 | 20 | 1,110 | 70.2% | 28.0% | D+42.2 |
| Precinct -Slater/SheldahlSlater/Sheldahl | 446 | 639 | 19 | 1,104 | 40.4% | 57.9% | R+17.5 |
| Precinct -Ames 15Ames 15 | 654 | 414 | 19 | 1,087 | 60.2% | 38.1% | D+22.1 |
| Precinct -Nevada 1/Richland TwpNevada 1/Richland Twp | 482 | 575 | 21 | 1,078 | 44.7% | 53.3% | R+8.6 |
| Precinct -Story City 1Story City 1 | 478 | 564 | 31 | 1,073 | 44.5% | 52.6% | R+8.0 |
| Precinct -Ames 18Ames 18 | 633 | 393 | 16 | 1,042 | 60.7% | 37.7% | D+23.0 |
| Precinct -Ames 17Ames 17 | 657 | 294 | 25 | 976 | 67.3% | 30.1% | D+37.2 |
| Precinct -Ames 21Ames 21 | 671 | 263 | 14 | 948 | 70.8% | 27.7% | D+43.0 |
| Precinct -Ames 06Ames 06 | 514 | 416 | 9 | 939 | 54.7% | 44.3% | D+10.4 |
| Precinct -Ames 01Ames 01 | 486 | 440 | 11 | 937 | 51.9% | 47.0% | D+4.9 |
| Precinct -Nevada 3Nevada 3 | 469 | 453 | 8 | 930 | 50.4% | 48.7% | D+1.7 |
| Precinct -Ames 13Ames 13 | 463 | 442 | 15 | 920 | 50.3% | 48.0% | D+2.3 |
| Precinct -Maxwell/Indian Creek TwpMaxwell/Indian Creek Twp | 297 | 600 | 17 | 914 | 32.5% | 65.6% | R+33.2 |
| Precinct -Nevada 2/Grant Twp 2Nevada 2/Grant Twp 2 | 434 | 374 | 13 | 821 | 52.9% | 45.6% | D+7.3 |
| Precinct -Cambridge/Union TwpCambridge/Union Twp | 286 | 495 | 12 | 793 | 36.1% | 62.4% | R+26.4 |
| Precinct -GilbertGilbert | 326 | 436 | 16 | 778 | 41.9% | 56.0% | R+14.1 |
| Precinct -Colo/New Albany TwpColo/New Albany Twp | 249 | 440 | 18 | 707 | 35.2% | 62.2% | R+27.0 |
| Precinct -Ames 20Ames 20 | 308 | 284 | 17 | 609 | 50.6% | 46.6% | D+3.9 |
| Precinct -Ames 19Ames 19 | 304 | 280 | 5 | 589 | 51.6% | 47.5% | D+4.1 |
| Precinct -Zearing/Lincoln Twp/Sherman TwpZearing/Lincoln Twp/Sherman Twp | 159 | 376 | 7 | 542 | 29.3% | 69.4% | R+40.0 |
| Precinct -Collins/Collins TwpCollins/Collins Twp | 96 | 329 | 4 | 429 | 22.4% | 76.7% | R+54.3 |
| Precinct -Milford TwpMilford Twp | 137 | 207 | 5 | 349 | 39.3% | 59.3% | R+20.1 |
| Precinct -McCallsburg/Warren TwpMcCallsburg/Warren Twp | 95 | 237 | 7 | 339 | 28.0% | 69.9% | R+41.9 |
| Precinct -Washington TwpWashington Twp | 142 | 186 | 4 | 332 | 42.8% | 56.0% | R+13.3 |
| Precinct -KelleyKelley | 72 | 94 | 6 | 172 | 41.9% | 54.7% | R+12.8 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −34.0% |
| 1896 | −38.6% |
| 1900 | −48.0% |
| 1904 | −63.6% |
| 1908 | −48.7% |
| 1912 | −0.4% |
| 1916 | −34.7% |
| 1920 | −63.1% |
| 1924 | −51.1% |
| 1928 | −53.0% |
| 1932 | −8.4% |
| 1936 | +4.2% |
| 1940 | −4.7% |
| 1944 | −4.4% |
| 1948 | −14.1% |
| 1952 | −44.4% |
| 1956 | −35.2% |
| 1960 | −30.6% |
| 1964 | +20.1% |
| 1968 | −16.4% |
| 1972 | −8.5% |
| 1976 | −7.5% |
| 1980 | −6.2% |
| 1984 | −4.0% |
| 1988 | +15.9% |
| 1992 | +12.2% |
| 1996 | +14.6% |
| 2000 | +3.5% |
| 2004 | +5.5% |
| 2008 | +16.2% |
| 2012 | +13.8% |
| 2016 | +12.3% |
| 2020 | +17.3% |
| 2024 | +10.3% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | D | 57.0%21,022 | 43.0%15,870 | 36,892 |
| 2020 | D | 55.9%28,216 | 41.1%20,750 | 50,469 |
Registered voters
By party of registration, over time
Registration leans Democratic; the presidential vote runs 4.8 points more Republican.
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 72,066 | 23,452 | 18,863 | 29,602 | 149 |
| 2010 | 64,163 | 20,518 | 17,730 | 25,734 | 181 |
| 2012 | 67,971 | 21,437 | 18,827 | 27,442 | 265 |
| 2014 | 64,973 | 19,351 | 18,226 | 26,972 | 424 |
| 2016 | 69,043 | 22,288 | 20,086 | 25,913 | 756 |
| 2018 | 69,545 | 22,722 | 19,200 | 26,649 | 974 |
| 2020 | 72,164 | 26,670 | 19,555 | 24,948 | 991 |
| 2022 | 70,373 | 25,203 | 18,954 | 25,236 | 980 |
| 2024 | 69,867 | 23,231 | 19,369 | 26,334 | 933 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−792 net domestic migration · 2025
Net −3,542 over 2011–2025 · gain loss
Arrivals reported $49,962 in average income, against $97,747 for residents who stayed — 49% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+2.9 on average — 13 points more Republican-leaning than Story County, IA itself (D+10.3).
Where arrivals came from lean of each source
- Polk County, IA607D+10.8
- Boone County, IA194R+21.5
- Dallas County, IA93R+4.7
- Marshall County, IA92R+15.5
- Hamilton County, IA88R+33.2
- Linn County, IA72D+9.9
Where departures went households, 2022–23
- Polk County, IA863
- Boone County, IA170
- Dallas County, IA116
- Linn County, IA72
- Hamilton County, IA64
- Marshall County, IA61
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 | +73 |
| 2012 | −176 |
| 2013 | +488 |
| 2014 | +556 |
| 2015 | −248 |
| 2016 | −828 |
| 2017 | −812 |
| 2018 | −1,208 |
| 2019 | −369 |
| 2021 | +477 |
| 2022 | −475 |
| 2023 | +257 |
| 2024 | −485 |
| 2025 | −792 |
Story County's Democratic lean in an otherwise Republican-trending state traces directly to Ames and Iowa State University, where students and faculty form a durable left-of-center voting bloc that has held margins in double digits across recent cycles.
Across the recorded series it reached a Democratic high of 20.1 points in 1964 and a Republican high of 63.6 points in 1904. Between 2020 and 2024 the county moved 7.0 points toward the Republican candidate; the 2024 margin was 10.3 points.
A population of 100,466, a 81% non-Hispanic-white share, and a median household income of $69,685 describe the county. The county's voting pattern over the last decade is most similar to that of Johnson County and Clay 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 →
Story County, Iowa. Akashic. https://akashic.app/county/19169/. Accessed May 20, 2026. License: CC BY 4.0.