Linn County, Iowa

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Linn County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 230,299,[1] and was estimated to be 232,028 in 2025,[2] making it the second-most populous county in Iowa. The county seat and the largest city is Cedar Rapids.[3] Linn County is named in honor of Senator Lewis F. Linn of Missouri.[4] Linn County is included in the Cedar Rapids, IA Metropolitan statistical area.[5]

History

The earliest inhabitants of Linn County, prior to Anglo settlement, were the Sac and Fox tribes. Relations were described by 20th century historians as amicable. Native Americans provided food and furs to whites in exchange for merchandise.[6]

Linn County was created as a named but unorganized area on December 21, 1837, as a part of Wisconsin Territory. It became part of Iowa Territory on July 3, 1838, when the territory was organized.[7][8] Linn County was organized by the first legislative assembly of the Iowa Territory on January 15, 1839. A site was selected for its first county seat along Indian Creek, and was named Marion, after the Revolutionary War general Francis Marion. As early as 1855, there were debates over moving the county seat to the fast-growing Cedar Rapids, southwest of Marion, but it was not until November 6, 1919, that there were enough votes in favor of the move (9,960 to 4,823).[9] The first rail line was built through Cedar Rapids in 1859, and made the town (and the county) a major commercial hub in eastern Iowa.

Many areas of the county were damaged by the flooding of Cedar River in June 2008, and again during the August 2020 Midwest derecho.

Geography

According to the United States Census Bureau, the county has a total area of Script error: No such module "convert"., of which Script error: No such module "convert". is land and Script error: No such module "convert". (1.06%) is water.[10] It is the 10th largest county in Iowa by total area.[11]

Major highways

Transit

Adjacent counties

Demographics

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Historical population
CensusPop.Template:Sronly%±
18505,444—
186018,947Script error: No such module "String".%
187031,080Script error: No such module "String".%
188037,237Script error: No such module "String".%
189045,303Script error: No such module "String".%
190055,392Script error: No such module "String".%
191060,720Script error: No such module "String".%
192074,004Script error: No such module "String".%
193082,336Script error: No such module "String".%
194089,142Script error: No such module "String".%
1950104,274Script error: No such module "String".%
1960136,899Script error: No such module "String".%
1970163,213Script error: No such module "String".%
1980169,775Script error: No such module "String".%
1990168,767Script error: No such module "String".%
2000191,701Script error: No such module "String".%
2010211,226Script error: No such module "String".%
2020230,299Script error: No such module "String".%
2025 (est.)232,028[12] IncreaseScript error: No such module "String".%
U.S. Decennial Census[13]
1790–1960[14] 1900–1990[15]
1990–2000[16] 2010–2020[2]

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As of the second quarter of 2025, the median home value in Linn County was $241,994.[17]

As of the 2024 American Community Survey, there are 97,117 estimated households in Linn County with an average of 2.33 persons per household. The county has a median household income of $74,709. Approximately 9.2% of the county's population lives at or below the poverty line. Linn County has an estimated 65.0% employment rate, with 33.3% of the population holding a bachelor's degree or higher and 93.7% holding a high school diploma.[2] There were 104,556 housing units at an average density of Script error: No such module "convert"..

The top five reported languages (people were allowed to report up to two languages, thus the figures will generally add to more than 100%) were English (92.1%), Spanish (2.0%), Indo-European (2.4%), Asian and Pacific Islander (1.5%), and Other (2.1%).

The median age in the county was 39.6 years.

Linn County, Iowa – racial and ethnic composition
<templatestyles src="Nobold/styles.css"/>Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / ethnicity (NH = non-Hispanic) Pop. 1980[18] Pop. 1990[19] Pop. 2000[20] Pop. 2010[21] Pop. 2020[22]
White alone (NH) 164,399
(96.83%)		 162,087
(96.04%)		 178,449
(93.09%)		 188,592
(89.28%)		 187,911
(81.59%)
Black or African American alone (NH) 2,715
(1.60%)		 3,288
(1.95%)		 4,857
(2.53%)		 8,160
(3.86%)		 16,200
(7.03%)
Native American or Alaska Native alone (NH) 268
(0.16%)		 333
(0.20%)		 383
(0.20%)		 479
(0.23%)		 382
(0.17%)
Asian alone (NH) 727
(0.43%)		 1,373
(0.81%)		 2,614
(1.36%)		 3,783
(1.79%)		 5,345
(2.32%)
Pacific Islander alone (NH) — — 89
(0.05%)		 162
(0.08%)		 522
(0.23%)
Other race alone (NH) 384
(0.23%)		 95
(0.06%)		 188
(0.10%)		 157
(0.07%)		 659
(0.29%)
Mixed race or multiracial (NH) — — 2,399
(1.25%)		 4,359
(2.06%)		 10,369
(4.50%)
Hispanic or Latino (any race) 1,282
(0.76%)		 1,591
(0.94%)		 2,722
(1.42%)		 5,534
(2.62%)		 8,911
(3.87%)
Total 169,775
(100.00%)		 168,767
(100.00%)		 191,701
(100.00%)		 211,226
(100.00%)		 230,299
(100.00%)

2024 estimate

As of the 2024 estimate, there were 231,762 people, 97,117 households, and _ families residing in the county. The population density was Script error: No such module "convert".. There were 104,556 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 85.8% White (82.1% NH White), 7.4% African American, 0.3% Native American, 2.8% Asian, 0.3% Pacific Islander, _% from some other races and 3.4% from two or more races. Hispanic or Latino people of any race were 4.4% of the population.

2020 census

File:LinnCountyIowaPop2020.png
Population of Linn County from the U.S. census data

As of the 2020 census, there were 230,299 people, 94,751 households, and 58,528 families residing in the county.[23] The population density was Script error: No such module "convert".. There were 101,230 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 82.78% White, 7.14% African American, 0.24% Native American, 2.33% Asian, 0.23% Pacific Islander, 1.31% from some other races and 5.96% from two or more races. Hispanic or Latino people of any race were 3.87% of the population.[24][25]

The median age was 38.0 years, with 23.2% of residents under the age of 18 and 16.5% aged 65 or older. For every 100 females there were 96.4 males, and for every 100 females age 18 and over there were 94.3 males age 18 and over.[26]

86.3% of residents lived in urban areas, while 13.7% lived in rural areas.[27]

There were 94,751 households in the county, of which 29.1% had children under the age of 18 living in them. Of all households, 46.2% were married-couple households, 19.7% were households with a male householder and no spouse or partner present, and 26.3% were households with a female householder and no spouse or partner present. About 30.9% of all households were made up of individuals and 11.4% had someone living alone who was 65 years of age or older.[26]

There were 101,230 housing units, of which 6.4% were vacant. Among occupied housing units, 71.0% were owner-occupied and 29.0% were renter-occupied. The homeowner vacancy rate was 1.3% and the rental vacancy rate was 9.1%.[26]

2010 census

As of the 2010 census, there were 211,226 people, 86,136 households, and _ families residing in the county. The population density was Script error: No such module "convert".. There were 92,251 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 90.85% White, 3.95% African American, 0.27% Native American, 1.80% Asian, 0.09% Pacific Islander, 0.72% from some other races and 2.34% from two or more races. Hispanic or Latino people of any race were 2.62% of the population.[28]

2000 census

As of the 2000 census, there were 191,701 people, 76,753 households, and 50,349 families residing in the county. The population density was Script error: No such module "convert".. There were 80,551 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 93.90% White, 2.57% African American, 0.22% Native American, 1.37% Asian, 0.05% Pacific Islander, 0.46% from some other races and 1.44% from two or more races. Hispanic or Latino people of any race were 1.42% of the population.

There were 76,753 households 31.80% had children under the age of 18 living with them, 53.20% were married couples living together, 9.00% had a female householder with no husband present, and 34.40% were non-families. 27.50% of households were one person and 8.90% were one person aged 65 or older. The average household size was 2.43 and the average family size was 2.99.

Age spread: 25.30% under the age of 18, 10.10% from 18 to 24, 30.30% from 25 to 44, 22.10% from 45 to 64, and 12.20% 65 or older. The median age was 35 years. For every 100 females, there were 96.10 males. For every 100 females age 18 and over, there were 93.40 males.

The median household income was $46,206 and the median family income was $56,494. Males had a median income of $38,525 versus $26,403 for females. The per capita income for the county was $22,977. About 4.30% of families and 6.50% of the population were below the poverty line, including 7.60% of those under age 18 and 6.40% of those age 65 or over.

Government

The Linn County Board of Supervisors consists of three members elected by district to overlapping four-year terms.[29]

Name District First elected
Kirsten Running-Marquardt District 1 2022
Sami Scheetz District 2 2025 (appointed)
Brandy Meisheid District 3 2024

The Board of Supervisors serves as both the executive branch and legislative branch of Linn County government. It oversees Communications, Community Services, Engineering/Secondary Road, Facilities, Finance & Budget, Human Resources, Information Technology, LIFTS (para-transit transportation), Planning & Development, Policy & Administration, Purchasing, Risk Management, Soil & Water Conservation, Sustainability, and Veteran Services. Conservation and Public Health report to independent boards appointed by the Board of Supervisors.

The County Attorney, Auditor, Recorder, Sheriff, and Treasurer are elected independently and oversee their respective departments.

Name Staff Directory
Nick Maybanks Attorney
Todd Taylor Auditor
Carolyn Siebrecht Recorder
Brian D. Gardner Sheriff
Brent C. Oleson Treasurer

While Iowa shifted from competitive to firmly Republican during the Donald Trump era in the mid-to-late 2010s, Linn County remained as one of the state's few Democratic strongholds. The County last voted for a Republican for president in 1984 when Ronald Reagan won a landslide re-election. In every presidential election since 1984, the Democratic candidate won Linn County by at least 9 percent.

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Communities

Cities

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Unincorporated communities

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Ghost towns

Townships

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Population ranking

The population ranking of the following table is based on the 2020 census of Linn County.

† county seat

Rank City/Town/etc. Municipal type Population
(2020 Census) 		Population
(2024 Estimate)
1 † Cedar Rapids City 137,710 137,904
2 Marion City 41,535 42,542
3 Hiawatha City 7,183 7,373
4 Mount Vernon City 4,527 4,554
5 Robins City 3,353 3,466
6 Fairfax City 2,828 3,037
7 Center Point City 2,579 2,580
8 Ely City 2,328 2,412
9 Lisbon City 2,233 2,246
10 Palo City 1,407 1,592
11 Walford (partially in Benton County) City 1,366 1,378
12 Central City City 1,264 1,259
13 Springville City 1,154 1,193
14 Coggon City 701 699
15 Walker City 688 693
16 Alburnett City 675 692
17 Bertram City 269 296
18 Prairieburg City 160 156

Education

School districts include:[30]

See also

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References

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External links

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