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COUNTY

Linn County

Iowa · 232,028 residents (2025 est.) · 717 sq mi
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The short version

Linn County is a county of 230,004 people in Iowa. Few US counties rank higher on income. Home values have more than doubled since 2000, reaching $214,300. The foreign-born share is 6%. 74% of homes are owner-occupied. Growth has run 20% since 2000, or 38,303 more people.

At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 39.0
US median: 38.9
Average education
35% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
230,004
+20%since 2000
from 191,701 in 2000
232,028 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
321 / sq mi
+12%since 2009
from 286 / sq mi in 2009
US average: 281
Median age
39.0
+11%since 2000
from 35.2 in 2000
US average: 38.9
Land area
717 sq mi
Population, 1990 – 2024
163K181K200K218K236K19902000201020202024Linn County
2024230K
1990201020202024
Age distribution, 2024
Under 55.8%(13,455)
US avg: 5.6%
5 to 95.8%(13,305)
US avg: 6%
10 to 146.9%(15,787)
US avg: 6.4%
15 to 196.5%(15,022)
US avg: 6.6%
20 to 246.5%(14,901)
US avg: 6.5%
25 to 3413.2%(30,437)
US avg: 13.7%
35 to 4413.4%(30,818)
US avg: 13.2%
45 to 5412%(27,680)
US avg: 12.2%
55 to 6412.5%(28,797)
US avg: 12.7%
65 to 7410%(23,071)
US avg: 10.2%
75 to 845.2%(11,994)
US avg: 5.1%
85 and over2.1%(4,737)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$77,649
−8%inflation adjusted, since 2000
from $46,206 in 2000
US average: $82,259
1990 – 2024
Per capita income
$43,820
+91%since 2000
from $22,977 in 2000
US average: $44,673
Households earning $100K+
51.7%
+19.8 ptssince 2009
from 31.9% in 2009
US average: 53.3%
Poverty rate
9.4%
+2.9 ptssince 2000
from 6.5% in 2000
US average: 12.5%
Income inequality (Gini)
0.447
+6%since 2010
from 0.423 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade17.2%
US avg: 9.9%
Information11.3%
US avg: 10.8%
Other services8.3%
US avg: 6.7%
Public administration7%
US avg: 4.8%
Wholesale trade6.9%
US avg: 6.9%
Finance & insurance5.1%
US avg: 5.9%
Professional, scientific, technical4.3%
US avg: 5.1%
Transportation & warehousing1.9%
US avg: 2.2%
Arts, entertainment, food1.9%
US avg: 1.9%
Agriculture, forestry, fishing1.1%
US avg: 1.6%
Construction0.9%
US avg: 1.2%
Education & health services0.8%
US avg: 0.9%
Manufacturing0.2%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$214,300
+21%inflation adjusted, since 2000
from $97,200 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$945
+2%inflation adjusted, since 2000
from $510 in 2000
US average: $1,442
Owner-occupied
73.5%
+0.8 ptssince 2000
from 72.7% in 2000
26.5% rent
Vacancy rate
7.3%
+0.6 ptssince 2009
from 6.6% in 2009
US average: 10.0%
Persons per household
2.35 people
+1%since 2009
from 2.33 people in 2009
US average: 2.54
Owner cost-burdened
17.7%
−2.3 ptssince 2009
from 20.0% in 2009
US average: 22.9%
Renter cost-burdened
42.6%
+3.9 ptssince 2009
from 38.7% in 2009
US average: 47.4%
Afford Score
2.8
+10%since 2009
from 2.5 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
33
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic93.1%(178,449)
Black2.5%(4,857)
Hispanic / Latino1.4%(2,722)
Asian1.4%(2,614)
Other0%
2024
White, non-Hispanic82.4%(189,409)
Black5.9%(13,514)
Hispanic / Latino4.1%(9,482)
Asian2.4%(5,489)
Other5.3%(12,110)
Diversity Score
39
+74%since 2009
from 23 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
31
−4%since 2020
from 32 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
Mexican2.9%(6,674)
Puerto Rican0.3%(789)
Guatemalan0.2%(433)
Salvadoran0.1%(147)
Honduran0.1%(146)
Dominican0.1%(142)
Spaniard0.1%(126)
Cuban0.1%(124)
Colombian0%(92)
+ 7 more hispanic origin groups with data
Asian origin
Asian Indian1%(2,187)
Chinese0.2%(545)
Filipino0.2%(475)
Burmese0.2%(379)
Vietnamese0.2%(356)
Korean0.2%(350)
Laotian0.1%(289)
Pakistani0.1%(246)
Nepalese0.1%(237)
Thai0%(91)
+ 6 more asian origin groups with data
Japanese0%(57)
Cambodian0%(28)
Malaysian0%(20)
Hmong0%(19)
Taiwanese0%(17)
Pacific Islander origin
Guamanian0%(10)
Samoan0%(9)
Ancestry
German30.3%(69,592)
Irish14%(32,213)
English11.5%(26,347)
Czech4.6%(10,493)
Norwegian4.1%(9,354)
American3.8%(8,698)
Swedish1.9%(4,368)
French1.9%(4,343)
Dutch1.7%(4,024)
Scottish1.7%(3,928)
Italian1.6%(3,741)
+ 46 more ancestry groups with data
Polish1.2%(2,725)
Danish0.9%(2,090)
Scotch-Irish0.8%(1,931)
Arab0.8%(1,806)
Welsh0.6%(1,275)
Lebanese0.5%(1,177)
Swiss0.5%(1,070)
British0.5%(1,042)
Belgian0.3%(603)
Russian0.2%(524)
Nigerian0.2%(479)
West Indian0.2%(466)
Austrian0.2%(442)
Jamaican0.1%(329)
Lithuanian0.1%(272)
Hungarian0.1%(261)
Slovak0.1%(250)
Ukrainian0.1%(213)
Kenyan0.1%(212)
Greek0.1%(204)
Ghanaian0.1%(179)
Finnish0.1%(161)
Canadian0.1%(158)
Slovene0.1%(154)
Croatian0.1%(150)
Portuguese0.1%(127)
Macedonian0%(105)
Serbian0%(99)
Armenian0%(92)
Syrian0%(84)
Haitian0%(80)
Iranian0%(79)
Brazilian0%(52)
Turkish0%(46)
Jordanian0%(39)
Latvian0%(31)
Romanian0%(30)
Egyptian0%(24)
Bulgarian0%(22)
Israeli0%(16)
Ethiopian0%(12)
Somali0%(8)
Section 05

Education

Bachelor's degree or higher
34.7%
+7.0 ptssince 2000
from 27.7% in 2000
US average: 35.6%
High school or higher
95.2%
+4.6 ptssince 2000
from 90.6% in 2000
US average: 89.6%
Graduate degree
11.4%
+4.2 ptssince 2000
from 7.2% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
19.3 min
+75%since 2000
from 11.0 min in 2000
US average: 26.5
Drive alone to work
75.6%
−7.6 ptssince 2009
from 83.2% in 2009
US average: 68.9%
Carpooled to work
6.3%
−2.3 ptssince 2009
from 8.6% in 2009
US average: 8.5%
Public transit
0.6%
−0.2 ptssince 2009
from 0.8% in 2009
US average: 3.2%
Worked from home
14.7%
+11.8 ptssince 2009
from 3.0% in 2009
US average: 15.0%
Walked to work
1.8%
−1.4 ptssince 2009
from 3.2% in 2009
US average: 2.4%
Biked to work
0.2%
−0.2 ptssince 2009
from 0.4% in 2009
US average: 0.4%
No vehicle available
4.9%
−0.9 ptssince 2009
from 5.8% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.5%
−1.5 ptssince 2011
from 5.0% in 2011
US average: 5.2%
Labor force participation
67.7%
−3.6 ptssince 2011
from 71.4% in 2011
US average: 63.5%
Women 20-64 in the labor force
80.9%
−0.9 ptssince 2020
from 81.8% in 2020
US average: 74.6%
Self-employed
11.3%
+1.0 ptssince 2009
from 10.4% in 2009
US average: 13.1%
Management & professional
41.3%
+4.5 ptssince 2009
from 36.9% in 2009
US average: 42.5%
Section 08

People & community

Male
49.3%
+0.2 ptssince 2009
from 49.1% in 2009
Female
50.7%
−0.2 ptssince 2009
from 50.9% in 2009
Foreign born
5.6%
+2.8 ptssince 2009
from 2.8% in 2009
US average: 14.1%
Veterans
7.4%
−3.6 ptssince 2009
from 11.1% in 2009
US average: 6.2%
With a disability
11.9%
+1.2 ptssince 2012
from 10.7% in 2012
US average: 13.3%
Uninsured
4.1%
−3.5 ptssince 2013
from 7.6% in 2013
US average: 8.4%
Broadband at home
91.6%
+10.8 ptssince 2017
from 80.8% in 2017
US average: 91.0%
Computer in household
96.3%
+2.8 ptssince 2020
from 93.5% in 2020
US average: 95.5%
Same house as last year
87.8%
+1.9 ptssince 2020
from 85.9% in 2020
US average: 87.7%
English only at home
92.9%
−2.6 ptssince 2016
from 95.5% in 2016
US average: 77.7%
Spanish at home
2.2%
+0.5 ptssince 2016
from 1.7% in 2016
US average: 13.6%
Marital status
Men 15+
Never married35.1%(32,237)
Married53.4%(49,010)
Widowed2.2%(2,013)
Divorced9.4%(8,604)
Women 15+
Never married29.4%(28,087)
Married49.6%(47,460)
Widowed7.7%(7,315)
Divorced13.3%(12,731)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.1%
−3.5 ptssince 2013
from 7.6% in 2013
US average: 8.4%
Employer-based
61.4%
−3.2 ptssince 2020
from 64.6% in 2020
US average: 54.8%
Direct-purchase
14.1%
Unchangedsince 2020
from 14.1% in 2020
US average: 13.8%
Medicare
17.9%
+1.1 ptssince 2020
from 16.8% in 2020
US average: 18.4%
Medicaid
19.1%
+1.8 ptssince 2020
from 17.3% in 2020
US average: 20.9%
VA health care
2.3%
−0.1 ptssince 2020
from 2.4% in 2020
US average: 2.2%
Any private
73.4%
−3.1 ptssince 2020
from 76.5% in 2020
US average: 67.1%
Any public
35.4%
+3.1 ptssince 2020
from 32.3% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)21.4%(2,823)
US avg: 26.4%
Gulf War (1990s)20.8%(2,747)
US avg: 24.3%
Vietnam era37.7%(4,975)
US avg: 33.1%
Korean War3.3%(438)
US avg: 4.5%
World War II2.2%(289)
US avg: 1%

Share of the 13,209 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Pop 226,568
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Head to head

Compare Linn County to nearby counties

LINN COUNTY VS
Benton County
Income$86,962+12%
Home value$208,200−3%
Population26,004−89%
SEE FULL COMPARISON →
LINN COUNTY VS
Jones County
Income$73,531−5%
Home value$184,800−14%
Population21,253−91%
SEE FULL COMPARISON →
LINN COUNTY VS
Johnson County
Income$74,935−3%
Home value$308,600+44%
Population160,044−31%
SEE FULL COMPARISON →
LINN COUNTY VS
Delaware County
Income$74,989−3%
Home value$177,900−17%
Population17,674−92%
SEE FULL COMPARISON →
Frequently asked

How many people live in Linn County, Iowa?

Linn County, Iowa has about 230,004 residents according to the 2024 American Community Survey.

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

The typical household in Linn County, Iowa earns about $77,649 a year. Half of households make more than that, and half make less.

Is Linn County, Iowa expensive?

In Linn County, Iowa, the median home is worth about $214,300, and the typical rent is about $945 a month.

How educated are people in Linn County, Iowa?

About 34.7% of adults age 25 and over in Linn County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Linn County, Iowa?

About 9.4% of people in Linn County, Iowa live below the federal poverty line.

Has Linn County, Iowa grown since 1990?

Yes, Linn County, Iowa has grown since 1990. The population has added about 61,237 residents, a change of about 36 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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Linn County, Iowa: demographics, income & housing data · CensusEasy