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Demographics of Scott County, Illinois

Scott County, Illinois had 4,866 people on July 1, 2025, by the Census Bureau’s estimate: −204 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.

Scott County, in four figures

4,866
Population
July 1, 2025, Vintage 2025 estimate.
−4.0%
Change since July 2020
−204 people.
46.0 ±0.6
Median age
ACS 2020–⁠2024.
$66,705 ±$7,853
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.

Scott County, Illinois's population shrank 4.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Scott 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

Scott County, Illinois's population shrank 4.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Scott 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 1PopulationIndexUnited States
20205,070100.0100.0
20214,98098.2100.2
20224,89496.5100.7
20234,86696.0101.6
20244,88996.4102.5
20254,86696.0103.1

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Population of Scott County, Illinois on July 1 of each year, Vintage 2025
July 1PopulationChange
20205,070−6
20214,980−90
20224,894−86
20234,866−28
20244,889+23
20254,866−23

Age, 2020–2024

The median age is 46.0 ±0.6: for men 42.6 ±1.1 and for women 48.1 ±1.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Scott County by age, ACS 2020–2024
AgePeopleShare
Under 5214 ±164.3% ±0.3
5 to 17816 ±6916.5% ±1.4
18 to 24376 ±577.6% ±1.2
25 to 441,028 ±8120.8% ±1.6
45 to 641,361 ±7827.6% ±1.6
65 and over1,142 ±11123.1% ±2.3

Income and poverty, 2020–2024

Median household income is $66,705 ±$7,853, and income per person $36,633 ±$3,204, 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 Scott County by income, ACS 2020–2024
Household incomeHouseholdsShare
Under $25,000395 ±8619.3% ±4.2
$25,000 to $49,999379 ±7818.5% ±3.8
$50,000 to $74,999323 ±6515.8% ±3.1
$75,000 to $99,999302 ±6114.8% ±2.9
$100,000 to $149,999398 ±8919.5% ±4.3
$150,000 to $199,999146 ±517.1% ±2.5
$200,000 or more103 ±365.0% ±1.7

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 Scott County by age, ACS 2020–2024
AgeBelow povertyRate
All ages560 ±12211.5% ±2.5
Under 18177 ±5817.4% ±5.4
18 to 59200 ±628.6% ±2.6
60 and over183 ±5012.0% ±3.1

Housing, 2020–2024

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Housing in Scott County, ACS 2020–2024
MeasureScott CountyIllinois
Housing units2,384 ±195,457,452 ±471
Occupied85.8% ±3.192.3% ±0.1
Vacant14.2% ±3.27.7% ±0.1
Owner occupied79.0% ±2.867.1% ±0.3
Renter occupied21.0% ±3.432.9% ±0.2
Median home value$96,400 ±$8,591$263,300 ±$797
Median gross rent$689 ±$44$1,274 ±$5
Median year built1963 ±31971 ±2

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 Scott County by Hispanic origin and race, ACS 2020–2024
OriginPeopleShare
Hispanic or Latino28 to 1320.6% to 2.7%
White alone, not Hispanic4,712 ±1595.4% ±0.3
Black alone, not Hispanic0 to 1030% to 2.1%
Asian alone, not Hispanic22 ±50.4% ±0.1
American Indian and Alaska Native alone, not Hispanic0 to 60% to 0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0 to 130% to 0.3%
Some other race alone, not Hispanic0 to 130% to 0.3%
Two or more races, not Hispanic69 ±311.4% ±0.6

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 Scott County by place of birth and citizenship, ACS 2020–2024
BornPeopleShare
Born in the state4,319 ±10187.5% ±2.0
Born in another state548 ±9211.1% ±1.9
Born a citizen outside the states9 to 670.2% to 1.4%
Born abroad13 to 510.3% to 1.0%
Naturalized citizens0 to 320% to 0.6%
Not citizens8 to 340.2% to 0.7%

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%.

Scott County among the counties of Illinois

96th of 102 by population, July 2025. Every one is listed on the Illinois page.

Counties of Illinois near Scott County in population, July 2025
CountyJuly 2025Change since 2020
Brown County6,401+2.7%
Henderson County5,984−5.6%
Edwards County5,898−5.0%
Putnam County5,619−0.1%
Stark County5,319−1.2%
Scott County4,866−4.0%
Pulaski County4,820−6.9%
Gallatin County4,616−6.4%
Alexander County4,570−11.6%
Calhoun County4,300−2.3%
Pope County3,672−2.2%

Elsewhere on the site

Sources

Data retrieved