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COUNTY · 2000 CENSUS

Carroll County

Iowa · 21,421 residents · 569.453 sq mi
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The short version

Carroll County has lower-than-average household income, with a median household income of $37,275. Population has held roughly steady since 1990. Median home value has more than doubled since 1990, reaching $77,500.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 38.7
US median: 35.2
Less educated
16% hold a bachelor's degree
US average: 24%
Less affordable
home values up 42%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
21,421
Unchangedsince 1990
from 21,423 in 1990
1990 – 2025
Median age
38.7
+13%since 1990
from 34.2 in 1990
US average: 35.2
Population, 1990 – 2024
20K21K21K21K22K1990201020202024Carroll County
202421K
1990201020202024
Age distribution, 2000
Under 56%(1,287)
US avg: 6.8%
5 to 97.2%(1,542)
US avg: 7.3%
10 to 148.3%(1,775)
US avg: 7.3%
15 to 198%(1,723)
US avg: 7.2%
20 to 244.8%(1,034)
US avg: 6.7%
25 to 3410.3%(2,216)
US avg: 14.2%
35 to 4415.6%(3,336)
US avg: 16%
45 to 5412.4%(2,662)
US avg: 13.4%
55 to 648.6%(1,841)
US avg: 8.6%
65 to 748.7%(1,874)
US avg: 6.5%
75 to 847.1%(1,524)
US avg: 4.4%
85 and over2.8%(607)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$37,275
+16%inflation adjusted, since 1990
from $24,391 in 1990
US average: $42,589
1990 – 2024
Per capita income
$18,595
+65%since 1990
from $11,301 in 1990
US average: $21,522
Poverty rate
6.5%
−4.1 ptssince 1990
from 10.6% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$77,500
+42%inflation adjusted, since 1990
from $41,500 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$403
+8%inflation adjusted, since 1990
from $283 in 1990
US average: $602
Owner-occupied
74.4%
+1.0 ptssince 1990
from 73.4% in 1990
25.6% rent
RELATED:See current rent listings in Carroll County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic99.7%(21,354)
Black0%(8)
Hispanic / Latino0.2%(37)
Asian0.2%(35)
2000
White, non-Hispanic98.6%(21,119)
Black0.2%(35)
Hispanic / Latino0.5%(115)
Asian0.3%(72)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican2.2%(453)
Cuban0.7%(145)
Honduran0.2%(51)
Puerto Rican0.2%(31)
Chilean0.1%(25)
Salvadoran0.1%(13)
Asian origin
Korean0.1%(22)
Chinese0.1%(12)
Hmong0%(2)
Ancestry
German51.6%(10,634)
Irish13.3%(2,733)
English6%(1,230)
American5.1%(1,047)
Danish2.1%(435)
Norwegian1.3%(262)
French1.2%(248)
Italian1.1%(236)
Scottish1.1%(223)
Swedish1%(209)
Dutch1%(205)
Czech0.7%(145)
+ 17 more ancestry groups with data
Polish0.5%(103)
British0.3%(55)
Canadian0.3%(52)
Russian0.2%(45)
Hungarian0.2%(32)
Welsh0.1%(30)
Scotch-Irish0.1%(23)
Swiss0.1%(20)
Finnish0%(10)
Slovene0%(10)
Belgian0%(9)
RANKED:Largest German population · Largest Irish population · Largest English population · Largest American population · Largest Mexican population
Section 05

Education

Bachelor's degree or higher
16.0%
+4.7 ptssince 1990
from 11.3% in 1990
US average: 24.4%
High school or higher
83.7%
+9.1 ptssince 1990
from 74.6% in 1990
US average: 80.3%
Graduate degree
3.5%
+0.5 ptssince 1990
from 3.0% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
10.9 min
−49%since 1990
from 21.6 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married28.4%(2,293)
Married63.5%(5,121)
Widowed2.3%(183)
Divorced5.8%(469)
Women 15+
Never married19.1%(1,671)
Married58.7%(5,129)
Widowed15.9%(1,393)
Divorced6.3%(547)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper

Places similar to Carroll County

Grant County
Pop 18,756
Crawford County
Pop 18,648
Bethel Census Area
Pop 18,391
Inyo County
Pop 18,158
Places similar to Carroll County
Head to head

Compare Carroll County to nearby counties

CARROLL COUNTY VS
Greene County
Income$63,409+70%
Home value$155,400+101%
Population8,658−57%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Audubon County
Income$58,229+56%
Home value$121,900+57%
Population5,509−73%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Calhoun County
Income$64,964+74%
Home value$118,800+53%
Population9,562−53%
SEE FULL COMPARISON →
CARROLL COUNTY VS
Crawford County
Income$67,027+80%
Home value$153,700+98%
Population16,237−20%
SEE FULL COMPARISON →
Frequently asked

How many people live in Carroll County, Iowa?

Carroll County, Iowa has about 21,421 residents according to the 2000 Census.

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

The typical household in Carroll County, Iowa earns about $37,275 a year. Half of households make more than that, and half make less.

Is Carroll County, Iowa expensive?

In Carroll County, Iowa, the median home is worth about $77,500, and the typical rent is about $403 a month.

How educated are people in Carroll County, Iowa?

About 16.0% of adults age 25 and over in Carroll County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Carroll County, Iowa?

About 6.5% of people in Carroll County, Iowa live below the federal poverty line.

Has Carroll County, Iowa grown since 1990?

Yes, Carroll County, Iowa has shrunk since 1990. The population has lost about 2 residents, a change of about -0 percent over that period.

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Explore from here

6 census tracts
Census Tract 9603Census Tract 9604Census Tract 9601Census Tract 9602Census Tract 9606Census Tract 9605
11 ZIP codes
ZIP 51401ZIP 51455ZIP 51443ZIP 51430ZIP 51436ZIP 51463ZIP 51440ZIP 51444ZIP 51452ZIP 51451ZIP 51459
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →