Linn County, Iowa Population 2024

228,183

Linn County, Iowa's estimated 2024 population is 228,183 with a growth rate of -0.19% in the past year according to the most recent United States census data. Linn County, Iowa is the 2nd largest county in Iowa. The 2010 population was 211,713 and has seen a growth of 7.78% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029226,058-425-0.19%
2028226,483-425-0.19%
2027226,908-425-0.19%
2026227,333-425-0.19%
2025227,758-425-0.19%
2024228,183-425-0.19%
2023228,608-425-0.19%
2022229,033-425-0.19%
2021229,458-953-0.41%
2020230,4113,1701.39%
2019227,2411,1810.52%
2018226,0601,5070.67%
2017224,5532,2541.01%
2016222,2991,9070.87%
2015220,3922,1690.99%
2014218,2231,6560.76%
2013216,5671,0250.48%
2012215,5421,3000.61%
2011214,2422,5291.19%
2010211,713
1990168,767-1,008-0.59%
1980169,7756,5624.02%
1970163,21326,31419.22%
1960136,89932,62531.29%
1950104,27415,13216.98%
194089,1426,8068.27%
193082,3368,33211.26%
192074,00413,28421.88%
191060,7205,3289.62%
190055,39210,08922.27%
189045,3038,06621.66%
188037,2376,15719.81%
187031,08012,13364.04%
186018,94713,503248.03%
18505,4444,071296.5%
18401,373-224,685-99.39%
showing: 36 rows
2024 Growth Rate
-0.19% (-425)
County Website
Linn County
State
Iowa
County Seat
2010 Population
211,713
Area
717 mi²
Density
318 people/mi²
Growth Since 2010
7.78% (16,470)
Founded
1839

Linn County, Iowa Population 2024

Population by Race

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Race
Population
Percentage (of total)
White196,16885.55%
Black or African American13,3885.84%
Two or more races11,3364.94%
Asian5,3242.32%
Other race2,2530.98%
Native American4330.19%
Native Hawaiian or Pacific Islander4060.18%
showing: 7 rows

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Linn County, Iowa Population by Race

Linn County, Iowa Population Pyramid 2024

Linn County, Iowa Median Age

38.2

Total

37.5

Male

39.3

Female

Linn County, Iowa Adults

There are 177,039 adults, (38,047 of whom are seniors) in Linn County, Iowa.

Linn County, Iowa Age Dependency

65

Age Dependency Ratio

27.4

Old Age Dependency Ratio

37.6

Child Dependency Ratio

Linn County, Iowa Sex Ratio

Female115,66250.44%
Male113,64649.56%

Linn County, Iowa Population by Age

Linn County, Iowa Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All94,2912.3874.125.9
Married44,8013.0391.18.9
Non Family36,1411.2657.942.1
Female9,0353.3357.742.3
Male4,3143.0468.931.1
showing: 5 rows

2.98

Average Family Size

2.38

Average Household Size

74.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Linn County, Iowa Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Linn County, Iowa Educational Attainment by Sex (over 25)

Linn County, Iowa Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 45.48%.

Linn County, Iowa Educational Attainment by Race

All

Male

Female

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$50,062

Average Earnings

$58,417

Average Male

$42,033

Average Female

Linn County, Iowa Earnings by Educational Attainment

Linn County, Iowa Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Linn County, Iowa Language

93.42% of Linn County, Iowa residents speak only English, while 6.58% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.11% of the population.

Linn County, Iowa Language

Linn County, Iowa Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White187,92313,9787.44%
Black12,6503,27225.87%
Multiple11,0712,21520.01%
Hispanic7,9601,08613.64%
Other2,17857526.4%
Asian5,2053366.46%
Islander40627768.23%
Native422317.35%
showing: 8 rows

9.48%

Overall Poverty Rate

8.46%

Male Poverty Rate

10.48%

Female Poverty Rate

Poverty in Linn County, Iowa

The race most likely to be in poverty in Linn County, Iowa is Islander, with 68.23% below the poverty level.

The race least likely to be in poverty in Linn County, Iowa is Asian, with 6.46% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.84%. Among those working part-time, it was 13.44%, and for those that did not work, the poverty rate was 17.79%.

Linn County, Iowa Poverty

rate

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Rate
Poverty
Less Than 9th Grade22.1%
High School10.24%
Some College7.76%
Bachelors or Greater3.55%
showing: 4 rows

Linn County, Iowa Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed46.7%
Male Unemployed27.96%
Female Employed5.82%
Male Employed3.74%
showing: 4 rows

Linn County, Iowa Poverty Rate by Employment Status and Sex

Linn County, Iowa Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Linn County, Iowa Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.0%

Overall Marriage Rate

51.3%

Male Marriage Rate

48.7%

Female Marriage Rate

Linn County, Iowa Married by Age and Sex

male

female

Linn County, Iowa Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Linn County, Iowa Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Linn County, Iowa Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

13,595

Number of Veterans

12,296

Male Veterans

1,299

Female Veterans

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Linn County, Iowa Veterans by War

count

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Linn County, Iowa Veterans by Age

count

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Linn County, Iowa Veterans by Race

Linn County, Iowa Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.15%

Veteran Poverty Rate

24.79%

Veteran Disability Rate

Linn County, Iowa Veterans by Education

LaborForceParticipation

68.8%

Labor Force Participation

66.1%

Employment Rate

3.8%

Unemployment Rate

Linn County, Iowa Employment by Age

LaborForceParticipation

Linn County, Iowa Employment by Race

LaborForceParticipation

Linn County, Iowa Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

71.83%

Born in Linn County, Iowa

94.95%

Native Born

5.05%

Foreign Born

2.6%

Non Citizen

2.45%

Naturalized

Place of Birth

94.95% of Linn County, Iowa residents were born in the United States, with 71.83% having been born in Iowa. 2.6% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Linn County, Iowa Place of Birth

Sources