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COUNTY

Carroll County

Illinois · 15,419 residents (2025 est.) · 445.406 sq mi
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The short version

Carroll County has notably lower household income than the US average, with a median household income of $60,758. Population has declined 7% since 2000. 18% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has risen by half since 2000, reaching $114,500. With a median age of 45.4, the population is older than the US median of 38.9. Households here earn about 27% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 45.4
US median: 38.9
Less educated
18% hold a bachelor's degree
US average: 36%
More affordable
home values down 12%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
15,576
−7%since 2000
from 16,674 in 2000
1990 – 2025
Population density
35 / sq mi
−2%since 2009
from 36 / sq mi in 2009
US average: 281
Median age
45.4
+11%since 2000
from 40.8 in 2000
US average: 38.9

PEP 2025 EST:15,419 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
14K15K16K16K17K1990201020202024Carroll County
202416K
1990201020202024
Age distribution, 2024
Under 54.3%(662)
US avg: 5.6%
5 to 95.3%(824)
US avg: 6%
10 to 144.9%(759)
US avg: 6.4%
15 to 194.9%(768)
US avg: 6.6%
20 to 246.2%(964)
US avg: 6.5%
25 to 3411.4%(1,778)
US avg: 13.7%
35 to 4412.7%(1,971)
US avg: 13.2%
45 to 5411.9%(1,855)
US avg: 12.2%
55 to 6414.3%(2,227)
US avg: 12.7%
65 to 7413.9%(2,158)
US avg: 10.2%
75 to 848.1%(1,258)
US avg: 5.1%
85 and over2.3%(352)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$60,758
−10%inflation adjusted, since 2000
from $37,148 in 2000
US average: $82,259
1990 – 2024
Per capita income
$32,110
+72%since 2000
from $18,688 in 2000
US average: $44,673
Households earning $100K+
39.6%
+17.9 ptssince 2009
from 21.6% in 2009
US average: 53.3%
Poverty rate
14.2%
+4.6 ptssince 2000
from 9.6% in 2000
US average: 12.5%
Income inequality (Gini)
0.411
−5%since 2010
from 0.434 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade22.5%
US avg: 9.9%
Information9.3%
US avg: 10.8%
Finance & insurance7.8%
US avg: 5.9%
Professional, scientific, technical7%
US avg: 5.1%
Wholesale trade5.6%
US avg: 6.9%
Other services4.5%
US avg: 6.7%
Agriculture, forestry, fishing4.4%
US avg: 1.6%
Construction4.3%
US avg: 1.2%
Public administration4.2%
US avg: 4.8%
Transportation & warehousing2.1%
US avg: 2.2%
Arts, entertainment, food2%
US avg: 1.9%
Education & health services0.8%
US avg: 0.9%
Manufacturing0.1%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$114,500
−12%inflation adjusted, since 2000
from $71,100 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$818
+17%inflation adjusted, since 2000
from $385 in 2000
US average: $1,442
Owner-occupied
77.2%
+0.5 ptssince 2000
from 76.7% in 2000
22.8% rent
Vacancy rate
19.8%
+3.8 ptssince 2009
from 16.0% in 2009
US average: 10.0%
Owner cost-burdened
19.3%
−2.9 ptssince 2009
from 22.2% in 2009
US average: 22.9%
Renter cost-burdened
33.8%
+3.2 ptssince 2009
from 30.6% in 2009
US average: 47.4%
Afford Score
1.9
−14%since 2009
from 2.2 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
7
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Carroll County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic95.9%(15,988)
Black0.5%(90)
Hispanic / Latino2%(340)
Asian0.4%(68)
Other0%
2024
White, non-Hispanic87.8%(13,674)
Black3.9%(612)
Hispanic / Latino5.3%(820)
Asian0.8%(125)
Other2.2%(345)
Diversity Score
28
+135%since 2009
from 12 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
44
+152%since 2020
from 18 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.6%(408)
Puerto Rican0.4%(56)
Colombian0.1%(21)
Costa Rican0.1%(16)
Ecuadorian0.1%(12)
Cuban0%(2)
Asian origin
Korean0.3%(48)
Asian Indian0.1%(20)
Laotian0.1%(16)
Chinese0.1%(13)
Pakistani0.1%(11)
Ancestry
German30.7%(4,781)
Irish12.9%(2,003)
English8.5%(1,324)
American8.3%(1,296)
Dutch4.1%(645)
Swedish2.8%(435)
Italian2.6%(408)
Polish2.4%(372)
French1.7%(269)
Scottish1.4%(218)
Norwegian1%(159)
Welsh0.9%(137)
+ 23 more ancestry groups with data
Greek0.8%(129)
Swiss0.6%(93)
Danish0.6%(87)
Czech0.5%(74)
Finnish0.3%(53)
Scotch-Irish0.2%(36)
Hungarian0.2%(32)
Belgian0.2%(30)
Arab0.2%(29)
Moroccan0.2%(26)
Lithuanian0.1%(19)
British0.1%(18)
Austrian0.1%(16)
Canadian0.1%(15)
Slovak0.1%(14)
Russian0.1%(12)
Serbian0%(4)
RANKED:Largest German population · Largest Irish population · Largest English population · Largest American population · Largest Dutch population
Section 05

Education

Bachelor's degree or higher
17.8%
+4.6 ptssince 2000
from 13.1% in 2000
US average: 35.6%
High school or higher
88.9%
+5.6 ptssince 2000
from 83.3% in 2000
US average: 89.6%
Graduate degree
4.6%
+0.9 ptssince 2000
from 3.7% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
24.6 min
+47%since 2000
from 16.7 min in 2000
US average: 26.5
Drive alone to work
79.2%
+1.1 ptssince 2009
from 78.2% in 2009
US average: 68.9%
Carpooled to work
9.5%
−1.5 ptssince 2009
from 11.0% in 2009
US average: 8.5%
Public transit
0.9%
+0.2 ptssince 2009
from 0.6% in 2009
US average: 3.2%
Worked from home
6.8%
+0.8 ptssince 2009
from 5.9% in 2009
US average: 15.0%
Walked to work
2.7%
−0.5 ptssince 2009
from 3.2% in 2009
US average: 2.4%
Biked to work
0.3%
−0.1 ptssince 2009
from 0.4% in 2009
US average: 0.4%
No vehicle available
3.3%
−1.5 ptssince 2009
from 4.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.1%
−5.4 ptssince 2011
from 8.5% in 2011
US average: 5.2%
Labor force participation
50.5%
−12.3 ptssince 2011
from 62.8% in 2011
US average: 63.5%
Self-employed
10.9%
−1.7 ptssince 2009
from 12.6% in 2009
US average: 13.1%
Management & professional
31.3%
−30.4 ptssince 2009
from 61.7% in 2009
US average: 42.5%
Section 08

People & community

Male
54.9%
+5.4 ptssince 2009
from 49.5% in 2009
Female
45.1%
−5.4 ptssince 2009
from 50.5% in 2009
Foreign born
2.4%
+0.6 ptssince 2009
from 1.8% in 2009
US average: 14.1%
Veterans
8.6%
−40.6 ptssince 2009
from 49.2% in 2009
US average: 6.2%
With a disability
16.2%
+2.2 ptssince 2012
from 14.0% in 2012
US average: 13.3%
Uninsured
5.8%
−82.3 ptssince 2013
from 88.1% in 2013
US average: 8.4%
Broadband at home
86.1%
+12.1 ptssince 2017
from 74.0% in 2017
US average: 91.0%
English only at home
94.0%
−2.4 ptssince 2016
from 96.4% in 2016
US average: 77.7%
Spanish at home
3.2%
+1.1 ptssince 2016
from 2.1% in 2016
US average: 13.6%
Marital status
Men 15+
Never married38.4%(2,835)
Married44.8%(3,309)
Widowed3.8%(282)
Divorced13%(962)
Women 15+
Never married20.1%(1,196)
Married55.8%(3,317)
Widowed9.5%(566)
Divorced14.5%(864)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Head to head

Compare Carroll County to nearby counties

CARROLL COUNTY VS
Whiteside County
Income$67,500+11%
Home value$127,100+11%
Population54,121+251%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Stephenson County
Income$64,043+5%
Home value$134,900+18%
Population43,220+180%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Jo Daviess County
Income$73,993+22%
Home value$209,900+83%
Population21,594+40%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Ogle County
Income$82,132+35%
Home value$189,200+65%
Population51,399+233%
SEE FULL COMPARISON →
Frequently asked

How many people live in Carroll County, Illinois?

Carroll County, Illinois has about 15,576 residents according to the 2024 American Community Survey.

What is the median household income in Carroll County, Illinois?

The typical household in Carroll County, Illinois earns about $60,758 a year. Half of households make more than that, and half make less.

Is Carroll County, Illinois expensive?

In Carroll County, Illinois, the median home is worth about $114,500, and the typical rent is about $818 a month.

How educated are people in Carroll County, Illinois?

About 17.8% of adults age 25 and over in Carroll County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Carroll County, Illinois?

About 14.2% of people in Carroll County, Illinois live below the federal poverty line.

Has Carroll County, Illinois grown since 1990?

Yes, Carroll County, Illinois has shrunk since 1990. The population has lost about 1,229 residents, a change of about -7 percent over that period.

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Explore from here

6 census tracts
Census Tract 9601Census Tract 9603Census Tract 9606Census Tract 9605Census Tract 9604Census Tract 9602
7 ZIP codes
ZIP 61074ZIP 61046ZIP 61285ZIP 61053ZIP 61051ZIP 61078ZIP 61014
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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