Washington County, Idaho: Sunbelt Conservative county. In 2024, voted R+62%. Republican peak: R+62 in 2024.
Key facts
- 2024 presidential margin
- R+62MIT Election Lab
- Political typology
- Sunbelt ConservativeAkashic typology
- Population
- 11,1422024 5-year
- Median household income
- $54,0002024 5-year
- White (non-Hispanic)
- 79.5%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 16.5%2024 5-year
- Peak Democratic margin
- D+60 in 1896MIT Election Lab
- Peak Republican margin
- R+62 in 2024MIT Election Lab
- Most similar
- Gooding County, ID · similarity 1.00
2024 results by precinct
2024 precinct map of Washington CountyPrecinct-level 2024 presidential results for Washington County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
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 | −36.1% |
| 1896 | +60.0% |
| 1900 | +5.9% |
| 1904 | −30.9% |
| 1908 | −9.6% |
| 1912 | +11.9% |
| 1916 | +7.4% |
| 1920 | −19.2% |
| 1924 | −19.6% |
| 1928 | −33.6% |
| 1932 | +26.0% |
| 1936 | +25.7% |
| 1940 | +9.3% |
| 1944 | −4.0% |
| 1948 | −0.4% |
| 1952 | −29.9% |
| 1956 | −15.8% |
| 1960 | −11.7% |
| 1964 | +6.0% |
| 1968 | −28.2% |
| 1972 | −36.4% |
| 1976 | −9.2% |
| 1980 | −32.6% |
| 1984 | −45.3% |
| 1988 | −26.6% |
| 1992 | −15.9% |
| 1996 | −23.8% |
| 2000 | −47.1% |
| 2004 | −51.4% |
| 2008 | −42.8% |
| 2012 | −46.7% |
| 2016 | −56.3% |
| 2020 | −57.7% |
| 2024 | −61.6% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,010 | 4,429 | 5,553 | ||
| R | 1,073 | 4,154 | 5,344 | ||
| R | 776 | 3,283 | 4,454 | ||
| R | 1,104 | 3,128 | 4,330 | ||
| R | 1,241 | 3,168 | 4,506 | ||
| R | 1,033 | 3,274 | 4,359 | ||
| R | 980 | 2,899 | 4,070 | ||
| R | 1,314 | 2,318 | 4,222 | ||
| R | 1,122 | 1,802 | 4,281 | ||
| R | 1,359 | 2,380 | 3,840 | ||
| R | 1,119 | 3,015 | 4,188 | ||
| R | 1,421 | 2,915 | 4,585 | ||
| R | 1,693 | 2,044 | 3,823 | ||
| R | 935 | 2,264 | 3,652 | ||
| R | 1,033 | 2,020 | 3,504 | ||
| D | 1,952 | 1,730 | 3,682 | ||
| R | 1,779 | 2,251 | 4,030 | ||
| R | 1,653 | 2,272 | 3,925 | ||
| R | 1,411 | 2,616 | 4,030 | ||
| R | 1,700 | 1,713 | 3,481 | ||
| R | 1,849 | 2,002 | 3,854 | ||
| D | 2,296 | 1,903 | 4,204 | ||
| D | 2,147 | 1,234 | 3,556 | ||
| D | 2,122 | 1,213 | 3,501 | ||
| R | 974 | 1,973 | 2,972 | ||
| R | 623 | 1,183 | 2,862 | ||
| R | 1,264 | 1,864 | 3,128 | ||
| D | 1,802 | 1,545 | 3,477 | ||
| O | 1,065 | 724 | 2,859 | ||
| R | 1,474 | 1,816 | 3,547 | ||
| R | 931 | 1,894 | 3,120 | ||
| D | 1,349 | 1,194 | 2,622 | ||
| D | 828 | 204 | 1,040 | ||
| O | 0 | 317 | 877 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
17.7%
German
13.0%
Irish
12.6%
American
6.1%
Scottish
3.2%
Italian
1.5%
French
1.2%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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: 45.0 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
$54,000
Washington County ranks in the bottom 25% of US counties.
Washington County$54,000
Idaho$77,800
United States$80,734
Washington County ranks in the bottom 25% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
15.3%
Children face moderate poverty.
Children under 1818.9%
Working age (18–64)13.3%
Seniors (65+)20.8%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
86.4%
speak English only
Spanish12.0%
Asian & Pacific Islander1.0%
Other Indo-European0.5%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 52.1% of residents not counted as adherents by any reporting body.
Washington County's sparse, agriculture-driven population anchors it among Idaho's most one-sided presidential counties, delivering R+61.7 in 2024 — a margin that has remained consistently wide across recent election cycles.
The Republican margin here reached sixty-two points in 2024. Between 2020 and 2024 the county moved four points toward the Republican candidate; the 2024 margin was sixty-two points.
A median household income of $54,000, a 80% non-Hispanic-white share, and a population of 11,142 describe the county. The county's voting pattern over the last decade is most similar to that of Gooding County and Niobrara County.
Most similar counties
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.
Washington County, Idaho. Akashic. https://akashic.app/county/16087/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More sunbelt conservative counties
Frequently asked questions
How did Washington County, Idaho vote in 2024?
In 2024, Washington County, Idaho voted Republican by 61.6 points (R+62), carried by the Republican candidate. Out of 5,553 votes cast, 1,010 went Democratic and 4,429 went Republican.
What is Washington County, Idaho's political typology?
Akashic places Washington County, Idaho in the "Sunbelt Conservative" typology — Affluent, predominantly white Sunbelt counties — reliably Republican. 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 county has voted Democratic 7 times, Republican 25 times, and other 2 times.
When did Washington County, Idaho last vote Democratic?
The most recent presidential election in which Washington County, Idaho voted Democratic was 1964.
How many people live in Washington County, Idaho?
Washington County, Idaho has a population of 11,142 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington County, Idaho?
Median household income in Washington County, Idaho is $54,000 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Washington County, Idaho?
Akashic tracks 38 presidential elections in Washington County, Idaho from 1876 to 2024. Of those, 7 went Democratic and 25 went Republican. The county's typology — "Sunbelt Conservative" — captures where that record, its demographics, and its recent swing place it among American communities.