COUNTY · 1990 CENSUS

Linn County

Iowa · 168,767 residents · 717.01 sq mi

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The short version

Linn County has roughly average household income, with a median household income of $32,137. Population has declined 12% since 2000. Median home value is $58,200.

At a glance

Wealthier

above the US median

US median: $30,130

Mid-age

median age 33.1

US median: 33.0

Average education

22% hold a bachelor's degree

US average: 20%

More affordable

home values down 21%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

168,767

−12%vs 2000

vs 191,701 in 2000

1990 – 2025

Population density

235 / sq mi

−12%vs 2000

vs 267 / sq mi in 2000

US average: 221

Median age

33.1

−6%vs 2000

vs 35.2 in 2000

US average: 33.0

Population, 1990 – 2024

2024230K

Section 02

Income & economy

Median household income

$32,137

−8%inflation adjusted, since 2000

vs $46,206 in 2000

US average: $30,130

1990 – 2024

Per capita income

$14,902

−35%vs 2000

vs $22,977 in 2000

US average: $14,340

Poverty rate

8.6%

+2.1 ptsvs 2000

vs 6.5% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$58,200

−21%inflation adjusted, since 2000

vs $97,200 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$369

−5%inflation adjusted, since 2000

vs $510 in 2000

US average: $450

Owner-occupied

70.4%

−2.3 ptsvs 2000

vs 72.7% in 2000

29.6% rent

Afford Score

1.8

−14%vs 2000

vs 2.1 in 2000

1990 – 2024

RELATED:See current rent listings in Linn County on RentDataNow

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%

Diversity Score13%(24,941)

1990

White, non-Hispanic96.8%(163,299)

Black1.9%(3,247)

Hispanic / Latino0.8%(1,333)

Asian0.9%(1,478)

Other0.4%(743)

Diversity Score9.7%(16,422)

Diversity Score

−25%vs 2000

vs 13 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

21.5%

−6.2 ptsvs 2000

vs 27.7% in 2000

US average: 20.3%

High school or higher

84.9%

−5.7 ptsvs 2000

vs 90.6% in 2000

US average: 75.2%

Graduate degree

5.7%

−1.5 ptsvs 2000

vs 7.2% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

16.4 min

+49%vs 2000

vs 11.0 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Linn County

Head to head

Compare Linn County to nearby counties

LINN COUNTY VS

Benton County

Income$86,962+171%

Home value$208,200+258%

Population26,004−89%

SEE FULL COMPARISON →

LINN COUNTY VS

Jones County

Income$73,531+129%

Home value$184,800+218%

Population21,253−91%

SEE FULL COMPARISON →

LINN COUNTY VS

Johnson County

Income$74,935+133%

Home value$308,600+430%

Population160,044−31%

SEE FULL COMPARISON →

LINN COUNTY VS

Delaware County

Income$74,989+133%

Home value$177,900+206%

Population17,674−92%

SEE FULL COMPARISON →

Frequently asked

How many people live in Linn County, Iowa?

Linn County, Iowa has about 168,767 residents according to the 1990 Census.

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

The typical household in Linn County, Iowa earns about $32,137 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 $58,200, and the typical rent is about $369 a month.

How educated are people in Linn County, Iowa?

About 21.5% 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 8.6% of people in Linn County, Iowa live below the federal poverty line.

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

How we source and harmonize this data →