COUNTY
Linn County
Iowa · 232,028 residents (2025 est.) · 717 sq mi
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Part of the Cedar Rapids metro area
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
median household income $77,649, 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
Unique to this place
What stands out about Linn County
What changed most since 1990
- Hispanic share0.8% → 4.1% (+3.3 pts)US over the same years: +9.9 pts
Among the 99 counties in Iowa
- 20th in household income$77,649
- 8th in share with a bachelor's degree34.7%
- 17th in home value$214,300
- 18th in diversity score39.2
Section 01
Population & growth
230,004
+20%since 2000
from 191,701 in 2000
232,028 in 2025 (Census Bureau estimate)
1990 – 2025
Land area
717 sq mi
Population, 1990 – 2024
2024230K
Age distribution, 2024
Under 55.8%(13,455)
5 to 95.8%(13,305)
10 to 146.9%(15,787)
15 to 196.5%(15,022)
20 to 246.5%(14,901)
25 to 3413.2%(30,437)
35 to 4413.4%(30,818)
45 to 5412%(27,680)
55 to 6412.5%(28,797)
65 to 7410%(23,071)
75 to 845.2%(11,994)
85 and over2.1%(4,737)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$77,649
−8%inflation adjusted, since 2000
from $46,206 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
51.7%
+19.8 ptssince 2009
from 31.9% in 2009
US average: 53.3%
Workforce by industry, 2024
Retail trade17.2%
Information11.3%
Other services8.3%
Public administration7%
Wholesale trade6.9%
Finance & insurance5.1%
Professional, scientific, technical4.3%
Transportation & warehousing1.9%
Arts, entertainment, food1.9%
Agriculture, forestry, fishing1.1%
Construction0.9%
Education & health services0.8%
Manufacturing0.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$214,300
+21%inflation adjusted, since 2000
from $97,200 in 2000
US average: $376,019
1990 – 2024
2.8
+10%since 2009
from 2.5 in 2009
1990 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
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)
39
+74%since 2009
from 23 in 2009
1990 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
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)
Central American0.4%(904)
Puerto Rican0.3%(789)
Guatemalan0.2%(433)
South American0.1%(225)
Salvadoran0.1%(147)
Honduran0.1%(146)
Dominican0.1%(142)
Spaniard0.1%(126)
Cuban0.1%(124)
Colombian0%(92)
Panamanian0%(91)
+ 7 more hispanic origin groups with data
Nicaraguan0%(72)
Venezuelan0%(40)
Ecuadorian0%(37)
Chilean0%(22)
Costa Rican0%(15)
Argentine0%(11)
Peruvian0%(4)
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)
Bangladeshi0%(68)
Sri Lankan0%(65)
Ancestry
German30.3%(69,592)
Irish14%(32,213)
English11.5%(26,347)
Czech4.6%(10,493)
Norwegian4.1%(9,354)
American3.8%(8,698)
Subsaharan African2.1%(4,791)
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)
French Canadian0.2%(363)
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)
Trinidadian & Tobagonian0%(37)
Palestinian0%(36)
Latvian0%(31)
Romanian0%(30)
Egyptian0%(24)
Bulgarian0%(22)
Israeli0%(16)
Australian0%(14)
Ethiopian0%(12)
Somali0%(8)
Section 05
Education
High school or higher
95.2%
+4.6 ptssince 2000
from 90.6% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
80.9%
−0.9 ptssince 2020
from 81.8% in 2020
US average: 74.6%
Section 08
People & community
Computer in household
96.3%
+2.8 ptssince 2020
from 93.5% in 2020
US average: 95.5%
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
Direct-purchase
14.1%
Unchangedsince 2020
from 14.1% in 2020
US average: 13.8%
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)
Gulf War (1990s)20.8%(2,747)
Vietnam era37.7%(4,975)
Korean War3.3%(438)
World War II2.2%(289)
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
Over time
Linn County, decade by decade
| Year | Population | Median household income | Median home value | Bachelor's degree+ | Diversity score |
|---|---|---|---|---|---|
| 1990 | 168,767 | $77,131 | $139,684 | 21.5% | 9.2 |
| 2000 | 191,701 | $84,171 | $177,065 | 27.7% | 16.5 |
| 2010 | 211,226 | $77,214 | $196,221 | 29.6% | 25.0 |
| 2020 | 230,299 | $81,571 | $195,865 | 34.1% | 40.7 |
| 2024 | 230,004 | $77,649 | $214,300 | 34.7% | 39.2 |
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
Drill deeper
Places similar to Linn County
Hall County
Pop 226,568
Hawaii County
Pop 210,043
Jefferson County
Pop 233,132
Okaloosa County
Pop 221,810
Places similar to Linn CountyHead 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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54 census tracts (top 20 by population)
Census Tract 1.01Census Tract 1.02Census Tract 9.02Census Tract 30.05Census Tract 107Census Tract 106Census Tract 29Census Tract 108.02Census Tract 17Census Tract 9.01Census Tract 3Census Tract 2.11Census Tract 2.01Census Tract 5Census Tract 30.03Census Tract 2.08Census Tract 2.05Census Tract 16Census Tract 10.01Census Tract 422 ZIP codes
ZIP 52404ZIP 52402ZIP 52302ZIP 52405ZIP 52403ZIP 52411ZIP 52233ZIP 52314ZIP 52213ZIP 52228ZIP 52227ZIP 52214ZIP 52328ZIP 52336ZIP 52324ZIP 52401ZIP 52352ZIP 52218ZIP 52341ZIP 52202ZIP 52219ZIP 52344Up the hierarchy
All counties in IowaDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024