Boise County, Idaho: Farm Belt county. In 2024, voted R+53%. Democratic peak: D+58 in 1896.
Key facts
- 2024 presidential margin
- R+53MIT Election Lab
- Political typology
- Farm BeltAkashic typology
- Population
- 8,2732024 5-year
- Median household income
- $78,7742024 5-year
- White (non-Hispanic)
- 84.8%2024 5-year
- Black
- 0.3%2024 5-year
- Hispanic / Latino
- 5.1%2024 5-year
- Peak Democratic margin
- D+58 in 1896MIT Election Lab
- Peak Republican margin
- R+53 in 2024MIT Election Lab
- Most similar
- Payette County, ID · similarity 1.00
2024 results by precinct
2024 precinct map of Boise CountyPrecinct-level 2024 presidential results for Boise 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 | −42.6% |
| 1896 | +58.2% |
| 1900 | +10.0% |
| 1904 | −22.1% |
| 1908 | −1.2% |
| 1912 | +4.2% |
| 1916 | +21.3% |
| 1920 | −22.4% |
| 1924 | −21.1% |
| 1928 | −14.4% |
| 1932 | +31.8% |
| 1936 | +34.6% |
| 1940 | +16.1% |
| 1944 | +9.7% |
| 1948 | +4.5% |
| 1952 | −35.7% |
| 1956 | −33.3% |
| 1960 | −2.7% |
| 1964 | +4.2% |
| 1968 | −30.3% |
| 1972 | −41.2% |
| 1976 | −21.5% |
| 1980 | −33.4% |
| 1984 | −47.2% |
| 1988 | −24.8% |
| 1992 | −12.5% |
| 1996 | −23.6% |
| 2000 | −41.7% |
| 2004 | −43.4% |
| 2008 | −31.6% |
| 2012 | −35.7% |
| 2016 | −49.7% |
| 2020 | −47.3% |
| 2024 | −53.3% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 1,065 | 3,627 | 4,810 | ||
| R | 1,204 | 3,485 | 4,820 | ||
| R | 777 | 2,673 | 3,812 | ||
| R | 1,053 | 2,284 | 3,445 | ||
| R | 1,240 | 2,433 | 3,773 | ||
| R | 970 | 2,501 | 3,527 | ||
| R | 745 | 2,019 | 3,055 | ||
| R | 879 | 1,576 | 2,959 | ||
| R | 623 | 912 | 2,320 | ||
| R | 620 | 1,044 | 1,710 | ||
| R | 436 | 1,249 | 1,721 | ||
| R | 518 | 1,134 | 1,846 | ||
| R | 433 | 684 | 1,167 | ||
| R | 256 | 676 | 1,020 | ||
| R | 205 | 450 | 809 | ||
| D | 450 | 414 | 864 | ||
| R | 432 | 456 | 888 | ||
| R | 285 | 570 | 855 | ||
| R | 309 | 655 | 970 | ||
| D | 479 | 437 | 940 | ||
| D | 564 | 464 | 1,031 | ||
| D | 677 | 489 | 1,167 | ||
| D | 780 | 368 | 1,190 | ||
| D | 679 | 342 | 1,059 | ||
| R | 389 | 521 | 919 | ||
| R | 198 | 388 | 902 | ||
| R | 373 | 588 | 961 | ||
| D | 1,048 | 657 | 1,833 | ||
| O | 743 | 651 | 2,216 | ||
| R | 862 | 885 | 1,936 | ||
| R | 639 | 1,053 | 1,870 | ||
| D | 852 | 695 | 1,572 | ||
| D | 862 | 226 | 1,093 | ||
| O | 0 | 377 | 885 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
23.9%
English
18.3%
Irish
12.2%
American
6.6%
Scottish
4.1%
Italian
3.3%
French
2.9%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
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: 53.4 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
$78,774
Boise County ranks in the top 25% of US counties.
Boise County$78,774
Idaho$77,800
United States$80,734
Boise County ranks in the top 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
7.7%
Child poverty is below the national average.
Children under 1812.9%
Working age (18–64)6.8%
Seniors (65+)6.8%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
95.7%
speak English only
Spanish2.6%
Other Indo-European1.6%
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 67.5% of residents not counted as adherents by any reporting body.
Boise County's roughly 6,600 residents are spread across forested mountain terrain northeast of the capital, producing some of Idaho's most lopsided federal-election results — a pattern that has held consistently across multiple cycles.
The Republican margin here reached fifty-three points in 2024. Between 2020 and 2024 the county moved six points toward the Republican candidate; the 2024 margin was fifty-three points.
A population of 8,273, a 85% non-Hispanic-white share, and a median household income of $78,774 describe an agricultural county. The county's voting pattern over the last decade is most similar to that of Payette County and Broadwater 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.
Boise County, Idaho. Akashic. https://akashic.app/county/16015/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Boise County, Idaho vote in 2024?
In 2024, Boise County, Idaho voted Republican by 53.3 points (R+53), carried by the Republican candidate. Out of 4,810 votes cast, 1,065 went Democratic and 3,627 went Republican.
What is Boise County, Idaho's political typology?
Akashic places Boise County, Idaho in the "Farm Belt" typology — Rural Plains and Midwest farm counties — Republican, with modest recent movement. 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 9 times, Republican 23 times, and other 2 times.
When did Boise County, Idaho last vote Democratic?
The most recent presidential election in which Boise County, Idaho voted Democratic was 1964.
How many people live in Boise County, Idaho?
Boise County, Idaho has a population of 8,273 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Boise County, Idaho?
Median household income in Boise County, Idaho is $78,774 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Boise County, Idaho?
Akashic tracks 38 presidential elections in Boise County, Idaho from 1876 to 2024. Of those, 9 went Democratic and 23 went Republican. The county's typology — "Farm Belt" — captures where that record, its demographics, and its recent swing place it among American communities.