Demographics of Saline County, Illinois

Saline County, Illinois had 22,772 people on July 1, 2025, by the Census Bureau’s estimate: −969 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Saline County, in four figures

22,772
Population: July 1, 2025, Vintage 2025 estimate.; −4.1%
Change since July 2020: −969 people.; 43.8 ±1.4
Median age: ACS 2020–⁠2024.; $53,117 ±$2,764
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Saline County, Illinois's population shrank 4.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Saline County, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Saline County, Illinois's population shrank 4.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Saline County, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	23,741	100.0	100.0
2021	23,379	98.5	100.2
2022	23,148	97.5	100.7
2023	22,980	96.8	101.6
2024	22,830	96.2	102.5
2025	22,772	95.9	103.1

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Population of Saline County, Illinois on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	23,741	−80	−15	0	−60
2021	23,379	−362	−188	0	−182
2022	23,148	−231	−129	+4	−95
2023	22,980	−168	−140	+13	−35
2024	22,830	−150	−151	+9	−10
2025	22,772	−58	−159	−2	+102

Age, 2020–2024

The median age is 43.8 ±1.4: for men 42.2 ±1.4 and for women 45.7 ±0.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Saline County by age, ACS 2020–2024
Age	People	Share	Illinois	United States
Under 5	1,298 ±70	5.6% ±0.3	5.4% ±<0.1	5.6% ±<0.1
5 to 17	3,501 ±227	15.1% ±1.0	16.4% ±0.1	16.3% ±<0.1
18 to 24	1,483 ±183	6.4% ±0.8	9.1% ±<0.1	9.1% ±<0.1
25 to 44	5,587 ±309	24.1% ±1.3	26.9% ±0.1	26.9% ±<0.1
45 to 64	6,348 ±334	27.3% ±1.4	25.2% ±0.1	24.8% ±<0.1
65 and over	4,996 ±347	21.5% ±1.5	17.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $53,117 ±$2,764, and income per person $36,683 ±$2,877, in 2024 dollars. The median is $83,390 ±$362 in Illinois and $80,734 ±$166 in the United States.

Households by income

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Households in Saline County by income, ACS 2020–2024
Household income	Households	Share	Illinois	United States
Under $25,000	2,298 ±339	22.9% ±3.3	14.6% ±0.1	14.6% ±<0.1
$25,000 to $49,999	2,416 ±353	24.1% ±3.5	16.0% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,706 ±240	17.0% ±2.4	14.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	1,016 ±175	10.1% ±1.7	12.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	1,469 ±219	14.7% ±2.2	18.0% ±0.2	17.5% ±<0.1
$150,000 to $199,999	585 ±169	5.8% ±1.7	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	534 ±138	5.3% ±1.4	13.8% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Saline County by age, ACS 2020–2024
Age	Below poverty	Rate	Illinois	United States
All ages	4,285 ±510	18.9% ±2.3	11.8% ±0.1	12.5% ±0.1
Under 18	1,003 ±215	21.7% ±4.3	15.1% ±0.2	16.1% ±0.1
18 to 59	2,307 ±342	20.0% ±2.8	11.0% ±0.1	11.6% ±0.1
60 and over	975 ±208	15.1% ±3.1	10.6% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Saline County, ACS 2020–2024
Measure	Saline County	Illinois	United States
Housing units	11,547 ±42	5,457,452 ±471	143,775,355 ±10,234
Occupied	86.8% ±2.0	92.3% ±0.1	89.9% ±0.1
Vacant	13.2% ±1.9	7.7% ±0.1	10.1% ±0.1
Owner occupied	72.5% ±2.9	67.1% ±0.3	65.2% ±0.3
Renter occupied	27.5% ±3.4	32.9% ±0.2	34.8% ±0.1
Median home value	$94,300 ±$6,813	$263,300 ±$797	$332,700 ±$236
Median gross rent	$726 ±$60	$1,274 ±$5	$1,413 ±$2
Median year built	1971 ±2	1971 ±2	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Saline County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Illinois	United States
Hispanic or Latino	502 ±0	2.2% ±<0.1	18.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	21,205 ±57	91.3% ±0.2	58.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	719 ±155	3.1% ±0.7	13.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	127 ±52	0.5% ±0.2	5.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 44	0% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 24	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 50	0% to 0.2%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	615 ±173	2.6% ±0.7	3.4% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Saline County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Illinois	United States
Born in the state	17,353 ±540	74.8% ±2.3	66.5% ±0.1	57.3% ±<0.1
Born in another state	5,517 ±507	23.8% ±2.2	17.5% ±0.1	26.9% ±<0.1
Born a citizen outside the states	39 to 223	0.2% to 1.0%	1.3% ±<0.1	1.7% ±<0.1
Born abroad	212 ±95	0.9% ±0.4	14.7% ±0.1	14.1% ±<0.1
Naturalized citizens	32 to 164	0.1% to 0.7%	7.7% ±0.1	7.4% ±<0.1
Not citizens	24 to 204	0.1% to 0.9%	7.0% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Saline County among the counties of Illinois

52nd of 102 by population, July 2025. Every one is listed on the Illinois page.

Counties of Illinois near Saline County in population, July 2025
County	July 2025	Change since 2020
Randolph County	29,921	−0.6%
Montgomery County	28,076	−0.6%
Logan County	27,182	−2.5%
Iroquois County	26,150	−3.0%
McDonough County	25,916	−4.5%
Saline County	22,772	−4.1%
Jo Daviess County	21,594	−2.2%
Jersey County	21,160	−1.5%
Fayette County	20,790	−3.2%
Shelby County	20,576	−1.6%
Perry County	20,160	−3.5%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026