Knox County, Illinois

2024 results by precinct

48 precincts · 22,191 votes cast

Trump · R+9

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−9.4%	9,838	11,917	22,191
2020	R	−5.6%	10,703	12,009	23,208
2016	R	−2.9%	10,083	10,737	22,503
2012	D	+17.3%	13,451	9,408	23,356
2008	D	+19.9%	14,191	9,419	23,988
2004	D	+9.3%	13,403	11,111	24,708
2000	D	+11.5%	12,572	9,912	23,174
1996	D	+20.7%	12,487	7,822	22,548
1992	D	+16.6%	12,524	8,331	25,296
1988	D	+8.1%	12,752	10,842	23,700
1984	R	−10.9%	12,027	14,974	27,122
1980	R	−23.5%	8,749	14,907	26,198
1976	R	−10.0%	11,525	14,123	25,967
1972	R	−29.8%	9,333	17,315	26,766
1968	R	−17.1%	9,707	14,216	26,396
1964	D	+7.7%	15,000	12,850	27,850
1960	R	−20.3%	11,889	17,938	29,850
1956	R	−32.2%	9,558	18,656	28,251
1952	R	−28.4%	10,354	18,569	28,940
1948	R	−21.0%	9,772	15,016	24,952
1944	R	−22.5%	10,070	15,964	26,160
1940	R	−16.1%	12,597	17,459	30,224
1936	R	−3.5%	13,697	14,712	29,124
1932	D	+0.2%	12,282	12,244	24,918
1928	R	−45.5%	5,993	16,151	22,330
1924	R	−52.6%	2,617	12,968	19,680
1920	R	−57.1%	2,852	12,559	17,005
1916	R	−22.3%	6,785	10,918	18,555
1912	D	+9.6%	2,758	1,750	10,467
1908	R	−34.3%	3,277	7,084	11,098
1904	R	−55.8%	1,849	7,566	10,247
1900	R	−39.1%	3,299	7,810	11,549
1896	R	−36.9%	3,480	7,681	11,397
1892	R	−28.4%	3,073	5,800	9,588
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%

Polish

0.6%

African American

6.5%

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

Age distribution by sex

Median age: 42.6 in this county, 39.1 nationally

Male

Age

Female

1.0%

85+

1.5%

3.1%

75–84

4.1%

6.0%

65–74

6.5%

6.6%

55–64

6.8%

6.3%

45–54

5.4%

6.2%

35–44

5.6%

6.0%

25–34

4.9%

5.4%

18–24

4.5%

7.6%

5–17

7.2%

2.8%

2.6%

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

Median household income

2024 inflation-adjusted dollars

$57,030

Knox County ranks near the middle of US counties.

Knox County$57,030

Illinois$83,390

United States$80,734

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

Poverty rate

All persons below federal poverty line

14.6%

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

6.4%

Other Christian

5.6%

Methodist

4.4%

Catholic & Orthodox

3.6%

Pentecostal & Holiness

3.2%

Baptist

1.4%

Source · 2020 US Religion Census. Remaining 75.4% of residents not counted as adherents by any reporting body.

Knox County, home to Galesburg and its storied railroad history, has shifted rightward over two decades as union-household demographics gave way to a smaller, older, less college-educated electorate — a pattern visible across Illinois's western tier.

The Democratic margin in Knox County has rarely exceeded twenty-one points in modern history; the Republican margin has rarely exceeded fifty-seven points. 2024 delivered the county to the Republican candidate by nine points.

Knox County's demographics resemble the country more than they resemble most counties. A 82% non-Hispanic-white share, a 15% poverty rate, and a median household income of $57,030 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Crawford County and Vernon County.

Most similar counties

Knox County votes the way the country votes.