Linn County, Iowa facts for kids

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Linn County, Iowa
Map
Map of Iowa highlighting Linn County
Location in the state of Iowa
Map of the USA highlighting Iowa
Iowa's location in the U.S.
Statistics
Founded 1839
Seat Cedar Rapids
Largest City Cedar Rapids
Area
 - Total
 - Land
 - Water

725 sq mi (1,878 km²)
717 sq mi (1,857 km²)
7.6 sq mi (20 km²), 1.1%
Population
 - (2010)
 - Density

211,226
295/sq mi (114/km²)
Time zone Central: UTC-6/-5
Website: www.linncounty.org
Named for: Lewis Linn
County flag Flag of Linn County, Iowa

Linn County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 211,226, making it the second-most populous county in Iowa. The county seat is Cedar Rapids. Linn county is named in honor of Senator Lewis F. Linn of Missouri.

Linn County is included in the Cedar Rapids, IA Metropolitan Statistical Area.

History

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 4, 1838 when the territory was organized. 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). 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.

Geography

According to the U.S. Census Bureau, the county has a total area of 725 square miles (1,880 km2), of which 717 square miles (1,860 km2) is land and 7.6 square miles (20 km2) (1.1%) is water.

Major highways

  • I-380 (IA).svg Interstate 380
  • Iowa 27.svg Iowa Highway 27
  • US 30.svg U.S. Highway 30
  • US 151 (IA).svg U.S. Highway 151
  • US 218 (IA).svg U.S. Highway 218
  • Iowa 1.svg Iowa Highway 1
  • Iowa 13.svg Iowa Highway 13

Adjacent counties

Demographics

Historical populations
Census Pop.
1850 5,444
1860 18,947 248.0%
1870 31,080 64.0%
1880 37,237 19.8%
1890 45,303 21.7%
1900 55,392 22.3%
1910 60,720 9.6%
1920 74,004 21.9%
1930 82,336 11.3%
1940 89,142 8.3%
1950 104,274 17.0%
1960 136,899 31.3%
1970 163,213 19.2%
1980 169,775 4.0%
1990 168,767 −0.6%
2000 191,701 13.6%
2010 211,226 10.2%
Est. 2015 219,916 14.7%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

2010 census

The 2010 census recorded a population of 211,226 in the county, with a population density of 294.4163/sq mi (113.6748/km2). There were 92,251 housing units, of which 86,134 were occupied.

2000 census

USA Linn County, Iowa age pyramid
2000 Census Age Pyramid for Linn County

As of the census of 2000, there were 191,701 people, 76,753 households, and 50,349 families residing in the county. The population density was 267 people per square mile (103/km²). There were 80,551 housing units at an average density of 112 per square mile (43/km²). The racial makeup of the county was 93.90% White, 2.57% Black or African American, 0.22% Native American, 1.37% Asian, 0.05% Pacific Islander, 0.46% from other races, and 1.44% from two or more races. 1.42% of the population were Hispanic or Latino of any race.

There were 76,753 households out of which 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 all households were made up of individuals and 8.90% had someone living alone who was 65 years of age 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% who were 65 years of age 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 income for a household in the county was $46,206, and the median income for a family 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.

Communities

Cities

Unincorporated communities

Ghost towns

Townships

  • Bertram
  • Boulder
  • Brown
  • Buffalo
  • Clinton
  • College
  • Fairfax
  • Fayette
  • Franklin
  • Grant
  • Jackson
  • Linn
  • Maine
  • Marion
  • Monroe
  • Otter Creek
  • Putnam
  • Spring Grove
  • Washington

Population ranking

The population ranking of the following table is based on the 2010 census of Linn County.

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Cedar Rapids City 126,326
2 Marion City 34,768
3 Hiawatha City 7,024
4 Mount Vernon City 4,506
5 Robins City 3,142
6 Center Point City 2,421
7 Lisbon City 2,152
8 Fairfax City 2,123
9 Ely City 1,776
10 Walford (partially in Benton County) City 1,463
11 Central City City 1,257
12 Springville City 1,074
13 Palo City 1,026
14 Walker City 791
15 Alburnett City 673
16 Coggon City 658
17 Bertram City 294
18 Prairieburg City 178

Images for kids


Linn County, Iowa Facts for Kids. Kiddle Encyclopedia.