Boone County, Iowa

2024 results by precinct

15 precincts · 15,403 votes cast

Trump · R+21

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−21.5%	5,895	9,199	15,403
2020	R	−15.6%	6,303	8,695	15,340
2016	R	−13.6%	5,541	7,484	14,310
2012	D	+6.6%	7,512	6,556	14,388
2008	D	+7.6%	7,356	6,293	13,929
2004	D	+1.1%	7,027	6,870	14,009
2000	D	+5.3%	6,270	5,625	12,249
1996	D	+18.2%	6,446	4,293	11,835
1992	D	+14.4%	5,913	4,148	12,219
1988	D	+24.4%	7,232	4,381	11,686
1984	D	+6.0%	6,485	5,746	12,277
1980	R	−5.0%	5,126	5,732	12,087
1976	D	+9.6%	6,595	5,413	12,263
1972	R	−10.5%	5,057	6,271	11,551
1968	R	−0.4%	5,219	5,260	11,096
1964	D	+36.7%	7,699	3,543	11,335
1960	R	−8.0%	5,759	6,761	12,527
1956	R	−7.4%	5,815	6,740	12,564
1952	R	−23.2%	4,896	7,901	12,947
1948	D	+13.3%	5,541	4,183	10,222
1944	D	+10.9%	6,062	4,868	11,003
1940	D	+15.6%	7,168	5,227	12,469
1936	D	+25.5%	7,080	4,110	11,629
1932	D	+16.4%	5,293	3,694	9,722
1928	R	−41.6%	3,049	7,521	10,742
1924	R	−39.1%	702	4,980	10,928
1920	R	−48.6%	2,240	7,093	9,980
1916	R	−10.9%	2,338	2,955	5,638
1912	D	+13.6%	1,601	802	5,880
1908	R	−24.2%	1,958	3,368	5,836
1904	R	−46.0%	1,148	3,830	5,833
1900	R	−28.0%	2,264	4,151	6,741
1896	R	−14.2%	2,801	3,741	6,630
1892	R	−20.0%	1,925	2,959	5,163
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

American

100.0%

Irish

0.5%

Polish

0.5%

African American

1.0%

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. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 42.4 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.4%

2.3%

75–84

3.1%

6.2%

65–74

6.2%

7.2%

55–64

7.1%

6.2%

45–54

5.8%

6.8%

35–44

6.4%

6.3%

25–34

5.8%

4.0%

18–24

3.2%

8.5%

5–17

7.3%

2.9%

2.4%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$83,531

Boone County ranks in the top 25% of US counties.

Boone County$83,531

Iowa$75,059

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

6.2%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Mainline Protestant

15.5%

Catholic & Orthodox

12.0%

Other Christian

8.6%

Methodist

7.4%

Baptist

2.2%

Pentecostal & Holiness

0.5%

Source · 2020 US Religion Census. Remaining 53.8% of residents not counted as adherents by any reporting body.

Boone County, anchored by its small county-seat city, backed Republican presidential candidates by double digits throughout the 2010s before widening that margin to R+21.4 in 2024, reflecting broader rural Iowa realignment.

The county's recent history is a story of close margins. The Democratic margin reached thirty-seven points in 1964; the Republican margin reached forty-nine points in 1920. Most other elections have been decided by single-digit points.

Boone County's demographics — a population of 26,668, a 94% non-Hispanic-white share, a median household income of $83,531 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Wapello County and Cowlitz County.

Most similar counties

Boone County delivered a near-tie in 2024.