Marshall County, Iowa

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Marshall County, Iowa
Marshall County Courthouse DH.jpg
Courthouse located in Marshalltown is on the NRHP
Map of Iowa highlighting Marshall County
Location in the state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1846
Named for John Marshall
Seat Marshalltown
Largest city Marshalltown
Area
 • Total 573.02 sq mi (1,484 km2)
 • Land 572.32 sq mi (1,482 km2)
 • Water 0.70 sq mi (2 km2), 0.12%
Population
 • (2010) 40,648
 • Density 71/sq mi (27/km²)
Congressional district 1st
Time zone Central: UTC-6/-5
Website www.co.marshall.ia.us

Marshall County is a county located in the U.S. state of Iowa. The population was 40,648 in the 2010 census, an increase from 39,311 in the 2000 census.[1] The county seat is Marshalltown.[2] The center of population of Iowa is located in Marshall County southwest of Marshalltown.[3]

Geography[edit]

According to the 2000 census, the county has a total area of 573.02 square miles (1,484.1 km2), of which 572.32 square miles (1,482.3 km2) (or 99.88%) is land and 0.70 square miles (1.8 km2) (or 0.12%) is water.[4]

Major highways[edit]

Adjacent counties[edit]

History[edit]

Marshall County was formed on January 13, 1846. It was named after John Marshall, Chief Justice of the United States Supreme Court.[5]

Demographics[edit]

Historical population
Census Pop.
1850 338
1860 6,015 1,679.6%
1870 17,576 192.2%
1880 23,752 35.1%
1890 25,842 8.8%
1900 29,991 16.1%
1910 30,279 1.0%
1920 32,630 7.8%
1930 33,727 3.4%
1940 35,406 5.0%
1950 35,611 0.6%
1960 37,984 6.7%
1970 41,076 8.1%
1980 41,652 1.4%
1990 38,276 −8.1%
2000 39,311 2.7%
Est. 2012 40,857
U.S. Decennial Census[6]
2012 Estimate[7]

2010 census[edit]

The 2010 census recorded a population of 40,648 in the county, with a population density of 71.0232/sq mi (27.4222/km2). There were 16,831 housing units, of which 15,538 were occupied.[1]

2000 census[edit]

2000 Census Age Pyramid for Marshall County

As of the census[8] of 2000, there were 39,311 people, 15,338 households, and 10,460 families residing in the county. The population density was 69 people per square mile (27/km²). There were 16,324 housing units at an average density of 28 per square mile (11/km²). The racial makeup of the county was 90.44% White, 0.93% Black or African American, 0.35% Native American, 0.78% Asian, 0.06% Pacific Islander, 6.03% from other races, and 1.42% from two or more races. 8.96% of the population were Hispanic or Latino of any race.

There were 15,338 households out of which 31.10% had children under the age of 18 living with them, 55.40% were married couples living together, 9.30% had a female householder with no husband present, and 31.80% were non-families. 26.90% of all households were made up of individuals and 12.20% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.00.

In the county the population was spread out with 25.30% under the age of 18, 8.10% from 18 to 24, 26.30% from 25 to 44, 23.90% from 45 to 64, and 16.40% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 99.20 males. For every 100 females age 18 and over, there were 96.50 males.

The median income for a household in the county was $38,268, and the median income for a family was $46,627. Males had a median income of $33,809 versus $24,063 for females. The per capita income for the county was $19,176. About 7.10% of families and 10.20% of the population were below the poverty line, including 14.30% of those under age 18 and 8.60% of those age 65 or over.

Communities[edit]

Incorporated cities[edit]

Unincorporated communities[edit]

Townships[edit]

See also[edit]

References[edit]

  1. ^ a b "Population & Housing Occupancy Status 2010". United States Census Bureau American FactFinder. Retrieved May 23, 2011. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Population and Population Centers by State: 2000". United States Census. 
  4. ^ "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13. 
  5. ^ Courthouse History—Marshall County, Iowa
  6. ^ "U.S. Decennial Census". Census.gov. Retrieved August 3, 2013. 
  7. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved August 3, 2013. 
  8. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  9. ^ http://freepages.family.rootsweb.ancestry.com/~solongago/pi2270.htm

External links[edit]

Coordinates: 42°02′03″N 93°00′04″W / 42.03417°N 93.00111°W / 42.03417; -93.00111