Demographics of Coles County, Illinois

Coles County, Illinois had 46,607 people on July 1, 2025, by the Census Bureau’s estimate: −480 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.

Coles County, in four figures

46,607
Population: July 1, 2025, Vintage 2025 estimate.; −1.0%
Change since July 2020: −480 people.; 37.5 ±0.6
Median age: ACS 2020–⁠2024.; $56,478 ±$3,441
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.

Coles County, Illinois's population shrank 1.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Coles 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

Coles County, Illinois's population shrank 1.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Coles 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	47,087	100.0	100.0
2021	47,657	101.2	100.2
2022	46,722	99.2	100.7
2023	46,690	99.2	101.6
2024	46,573	98.9	102.5
2025	46,607	99.0	103.1

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Population of Coles 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	47,087	−100	−33	0	−72
2021	47,657	+570	−148	+18	+721
2022	46,722	−935	−152	+66	−904
2023	46,690	−32	−76	+156	−104
2024	46,573	−117	−28	+115	−199
2025	46,607	+34	−32	+81	−14

Age, 2020–2024

The median age is 37.5 ±0.6: for men 36.5 ±0.9 and for women 38.3 ±1.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Coles County by age, ACS 2020–2024
Age	People	Share	Illinois	United States
Under 5	2,311 ±159	4.9% ±0.3	5.4% ±<0.1	5.6% ±<0.1
5 to 17	6,238 ±413	13.3% ±0.9	16.4% ±0.1	16.3% ±<0.1
18 to 24	7,924 ±594	16.9% ±1.3	9.1% ±<0.1	9.1% ±<0.1
25 to 44	11,081 ±475	23.7% ±1.0	26.9% ±0.1	26.9% ±<0.1
45 to 64	10,631 ±481	22.7% ±1.0	25.2% ±0.1	24.8% ±<0.1
65 and over	8,592 ±521	18.4% ±1.1	17.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $56,478 ±$3,441, and income per person $33,885 ±$1,887, 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 Coles County by income, ACS 2020–2024
Household income	Households	Share	Illinois	United States
Under $25,000	4,525 ±538	21.7% ±2.6	14.6% ±0.1	14.6% ±<0.1
$25,000 to $49,999	4,616 ±508	22.2% ±2.4	16.0% ±0.2	16.7% ±<0.1
$50,000 to $74,999	4,020 ±496	19.3% ±2.4	14.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	2,485 ±343	11.9% ±1.6	12.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	2,797 ±334	13.4% ±1.6	18.0% ±0.2	17.5% ±<0.1
$150,000 to $199,999	1,528 ±253	7.3% ±1.2	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	853 ±240	4.1% ±1.2	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 Coles County by age, ACS 2020–2024
Age	Below poverty	Rate	Illinois	United States
All ages	8,056 ±959	18.7% ±2.2	11.8% ±0.1	12.5% ±0.1
Under 18	1,707 ±348	20.8% ±4.0	15.1% ±0.2	16.1% ±0.1
18 to 59	5,166 ±701	21.8% ±2.8	11.0% ±0.1	11.6% ±0.1
60 and over	1,183 ±265	10.6% ±2.3	10.6% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Coles County, ACS 2020–2024
Measure	Coles County	Illinois	United States
Housing units	22,681 ±65	5,457,452 ±471	143,775,355 ±10,234
Occupied	91.8% ±1.4	92.3% ±0.1	89.9% ±0.1
Vacant	8.2% ±1.4	7.7% ±0.1	10.1% ±0.1
Owner occupied	60.4% ±2.2	67.1% ±0.3	65.2% ±0.3
Renter occupied	39.6% ±2.4	32.9% ±0.2	34.8% ±0.1
Median home value	$127,400 ±$7,333	$263,300 ±$797	$332,700 ±$236
Median gross rent	$780 ±$41	$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 Coles County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Illinois	United States
Hispanic or Latino	1,809 ±0	3.9% ±<0.1	18.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	41,146 ±196	88.0% ±0.4	58.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	1,666 ±239	3.6% ±0.5	13.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	514 ±86	1.1% ±0.2	5.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 32	0% to 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 10	0% to < 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	38 to 328	0.1% to 0.7%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,442 ±312	3.1% ±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 Coles County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Illinois	United States
Born in the state	36,405 ±952	77.8% ±2.0	66.5% ±0.1	57.3% ±<0.1
Born in another state	8,777 ±904	18.8% ±1.9	17.5% ±0.1	26.9% ±<0.1
Born a citizen outside the states	148 to 446	0.3% to 1.0%	1.3% ±<0.1	1.7% ±<0.1
Born abroad	1,298 ±398	2.8% ±0.9	14.7% ±0.1	14.1% ±<0.1
Naturalized citizens	712 ±245	1.5% ±0.5	7.7% ±0.1	7.4% ±<0.1
Not citizens	586 ±222	1.3% ±0.5	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%.

Coles County among the counties of Illinois

31st of 102 by population, July 2025. Every one is listed on the Illinois page.

Counties of Illinois near Coles County in population, July 2025
County	July 2025	Change since 2020
Boone County	53,568	+0.4%
Jackson County	52,501	−1.5%
Ogle County	51,399	−0.7%
Henry County	48,095	−2.2%
Knox County	47,767	−4.1%
Coles County	46,607	−1.0%
Macoupin County	43,748	−2.6%
Stephenson County	43,220	−3.0%
Woodford County	38,111	−0.8%
Clinton County	37,128	+0.6%
Franklin County	36,916	−2.1%

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