Rochestr-Mason City-Austin, Iowa: Industrial Catholic Metro market. In 2024, voted R+8%. Republican peak: R+65 in 1920.
Key facts
- 2024 presidential margin
- R+8MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic typology
- Population
- 384,5072024 5-year
- Median household income
- $82,9222024 5-year
- White (non-Hispanic)
- 83.2%2024 5-year
- Black
- 4.2%2024 5-year
- Hispanic / Latino
- 6.6%2024 5-year
- Peak Democratic margin
- D+21 in 1964MIT Election Lab
- Peak Republican margin
- R+65 in 1920MIT Election Lab
2024 presidential election
Rochestr-Mason City-Austin
TrumpR+8
How it voted
Share of the 2024 vote
| Donald Trump ✓Republican | 52.9% | 110,451 |
|---|---|---|
| Kamala HarrisDemocratic | 44.9% | 93,719 |
| OtherAll other candidates | 2.1% | 4,455 |
D+60R+60
12 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +1.8% |
| 1896 | −35.5% |
| 1900 | −41.3% |
| 1904 | −56.4% |
| 1908 | −33.9% |
| 1912 | +5.4% |
| 1916 | −25.0% |
| 1920 | −64.7% |
| 1924 | −49.4% |
| 1928 | −34.6% |
| 1932 | +14.3% |
| 1936 | +14.8% |
| 1940 | −4.6% |
| 1944 | −5.3% |
| 1948 | +7.6% |
| 1952 | −29.0% |
| 1956 | −17.2% |
| 1960 | −14.6% |
| 1964 | +21.5% |
| 1968 | −8.3% |
| 1972 | −21.2% |
| 1976 | −2.5% |
| 1980 | −12.0% |
| 1984 | −7.9% |
| 1988 | +1.9% |
| 1992 | +5.0% |
| 1996 | +12.3% |
| 2000 | +2.6% |
| 2004 | +2.2% |
| 2008 | +10.3% |
| 2012 | +7.3% |
| 2016 | −10.0% |
| 2020 | −5.7% |
| 2024 | −8.0% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 93,719 | 110,451 | 208,625 | ||
| R | 97,261 | 109,192 | 211,049 | ||
| R | 78,374 | 97,771 | 193,163 | ||
| D | 101,362 | 87,179 | 193,107 | ||
| D | 104,588 | 84,668 | 193,379 | ||
| D | 95,891 | 91,647 | 189,869 | ||
| D | 81,690 | 77,423 | 166,306 | ||
| D | 77,675 | 58,433 | 155,823 | ||
| D | 69,215 | 60,592 | 171,899 | ||
| D | 77,700 | 74,744 | 153,745 | ||
| R | 73,169 | 85,746 | 160,021 | ||
| R | 62,539 | 81,405 | 157,700 | ||
| R | 74,732 | 78,719 | 156,517 | ||
| R | 56,735 | 87,979 | 147,288 | ||
| R | 61,622 | 73,261 | 140,673 | ||
| D | 85,925 | 55,474 | 141,641 | ||
| R | 62,809 | 84,264 | 147,281 | ||
| R | 55,396 | 78,418 | 134,067 | ||
| R | 48,187 | 87,784 | 136,445 | ||
| D | 61,213 | 52,460 | 115,660 | ||
| R | 52,049 | 57,846 | 110,286 | ||
| R | 60,784 | 66,636 | 127,828 | ||
| D | 63,586 | 46,623 | 114,319 | ||
| D | 58,614 | 43,708 | 104,095 | ||
| R | 31,499 | 65,233 | 97,509 | ||
| R | 7,409 | 52,460 | 91,148 | ||
| R | 12,798 | 64,393 | 79,732 | ||
| R | 15,248 | 25,918 | 42,691 | ||
| O | 12,169 | 9,988 | 40,412 | ||
| R | 12,379 | 26,086 | 40,437 | ||
| R | 7,351 | 28,813 | 38,021 | ||
| R | 12,346 | 30,730 | 44,544 | ||
| R | 14,889 | 31,882 | 47,864 | ||
| D | 17,468 | 16,786 | 37,767 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
32.4%
Irish
9.8%
English
7.3%
American
4.2%
Polish
2.0%
French
1.6%
Italian
1.2%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 40.3 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$82,922
Rochestr-Mason City-Austin ranks near the middle of US counties.
Rochestr-Mason City-Austin$82,922
Iowa$75,059
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
8.9%
Child poverty is below the national average.
Children under 1810.4%
Working age (18–64)8.3%
Seniors (65+)10.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
89.4%
speak English only
Spanish3.9%
Asian & Pacific Islander2.8%
Other Indo-European2.1%
Other languages1.9%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 45.1% of residents not counted as adherents by any reporting body.
This mid-sized media market spans the Minnesota-Iowa border region, where farm-economy concerns and small-city demographics consistently produce competitive margins in statewide races on both sides of the line.
Across the recorded series it reached a Democratic high of twenty-one points in 1964 and a Republican high of sixty-five points in 1920. Between 2020 and 2024 the market moved two points toward the Republican candidate; the 2024 margin was eight points.
A population of 384,507, a 83% non-Hispanic-white share, and a median household income of $82,922 describe the market.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Rochestr-Mason City-Austin, Iowa. Akashic. https://akashic.app/dma/611/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Rochestr-Mason City-Austin, Iowa vote in 2024?
In 2024, Rochestr-Mason City-Austin, Iowa voted Republican by 8.0 points (R+8), carried by the Republican candidate. Out of 208,625 votes cast, 93,719 went Democratic and 110,451 went Republican.
What is Rochestr-Mason City-Austin, Iowa's political typology?
Akashic places Rochestr-Mason City-Austin, Iowa in the "Industrial Catholic Metro" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the market has voted Democratic 12 times, Republican 21 times, and other 1 times.
When did Rochestr-Mason City-Austin, Iowa last vote Democratic?
The most recent presidential election in which Rochestr-Mason City-Austin, Iowa voted Democratic was 2012.
How many people live in Rochestr-Mason City-Austin, Iowa?
Rochestr-Mason City-Austin, Iowa has a population of 384,507 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Rochestr-Mason City-Austin, Iowa?
Median household income in Rochestr-Mason City-Austin, Iowa is $82,922 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Rochestr-Mason City-Austin, Iowa?
Akashic tracks 38 presidential elections in Rochestr-Mason City-Austin, Iowa from 1876 to 2024. Of those, 12 went Democratic and 21 went Republican. The market's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.