LaSalle County, Illinois

2024 results by precinct

119 precincts · 52,508 votes cast

Trump · R+18

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−18.5%	21,029	30,717	52,508
2020	R	−14.3%	22,442	30,113	53,687
2016	R	−14.4%	19,543	26,689	49,743
2012	R	−0.4%	23,073	23,256	47,405
2008	D	+11.1%	27,443	21,872	50,185
2004	R	−3.6%	24,263	26,101	50,729
2000	D	+4.5%	23,355	21,276	46,007
1996	D	+14.9%	21,643	15,299	42,491
1992	D	+14.4%	23,276	16,078	49,931
1988	D	+0.2%	22,271	22,166	44,650
1984	R	−14.2%	20,532	27,388	48,139
1980	R	−22.0%	16,818	27,323	47,835
1976	R	−4.1%	23,105	25,114	48,865
1972	R	−18.6%	21,405	31,190	52,687
1968	R	−6.0%	22,940	26,054	51,610
1964	D	+18.6%	30,923	21,216	52,139
1960	R	−0.0%	27,532	27,552	55,125
1956	R	−29.2%	18,318	33,461	51,862
1952	R	−21.3%	21,321	32,857	54,277
1948	R	−10.8%	19,666	24,453	44,440
1944	R	−12.9%	21,489	28,179	51,878
1940	D	+8.0%	29,704	25,296	55,399
1936	D	+9.2%	26,926	22,240	51,201
1932	D	+17.5%	27,500	19,179	47,587
1928	R	−7.1%	20,807	24,039	45,228
1924	R	−42.9%	6,216	21,417	35,417
1920	R	−52.8%	6,626	23,751	32,434
1916	R	−16.6%	14,625	20,662	36,459
1912	D	+11.0%	7,036	4,858	19,784
1908	R	−17.8%	7,589	11,159	20,074
1904	R	−33.2%	5,628	11,967	19,095
1900	R	−14.8%	8,671	11,781	20,956
1896	R	−17.2%	8,108	11,548	20,047
1892	D	+7.8%	9,365	7,957	18,033
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%

African American

2.1%

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: 42.2 in this county, 39.1 nationally

Male

Age

Female

0.8%

85+

1.7%

2.7%

75–84

3.0%

5.9%

65–74

5.9%

7.4%

55–64

7.3%

6.0%

45–54

5.8%

6.6%

35–44

5.9%

6.4%

25–34

5.6%

4.2%

18–24

3.6%

8.3%

5–17

7.7%

2.6%

2.5%

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

Median household income

2024 inflation-adjusted dollars

$73,045

LaSalle County ranks near the middle of US counties.

LaSalle County$73,045

Illinois$83,390

United States$80,734

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

Poverty rate

All persons below federal poverty line

13.9%

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

Catholic & Orthodox

19.5%

Mainline Protestant

5.4%

Other Christian

5.3%

Pentecostal & Holiness

4.9%

Methodist

3.5%

Baptist

0.6%

Source · 2020 US Religion Census. Remaining 60.8% of residents not counted as adherents by any reporting body.

LaSalle County, anchored by the Illinois River corridor and a mix of manufacturing towns and agricultural townships, has shifted roughly 20 points toward Republican presidential candidates over the past two decades, reflecting broader realignment among working-class Midwest counties.

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

LaSalle County's demographics — a population of 108,714, a 86% non-Hispanic-white share, a median household income of $73,045 — 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 Putnam County and Lake County.

Most similar counties

LaSalle County delivered a near-tie in 2024.