Marion County, Iowa

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For counties with a similar name, see Marion County (disambiguation).
Not to be confused with Marion, Iowa.
Marion County, Iowa
Marion County, Iowa Courthouse.jpg
Map of Iowa highlighting Marion County
Location in the state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1845
Named for Francis Marion
Seat Knoxville
Largest city Pella
Area
 • Total 571 sq mi (1,479 km2)
 • Land 555 sq mi (1,437 km2)
 • Water 16 sq mi (41 km2), 2.8%
Population
 • (2010) 33,309
 • Density 60/sq mi (23/km²)
Congressional district 2nd
Time zone Central: UTC-6/-5
Website www.co.marion.ia.us

Marion County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 33,309.[1] The county seat is Knoxville.[2] It is named for Francis Marion, a brigadier general from South Carolina in the American Revolutionary War.

Geography[edit]

According to the U.S. Census Bureau, the county has a total area of 571 square miles (1,480 km2), of which 555 square miles (1,440 km2) is land and 16 square miles (41 km2) (2.8%) is water.[3]

Major highways[edit]

Adjacent counties[edit]

Demographics[edit]

Historical population
Census Pop.
1850 5,482
1860 16,813 206.7%
1870 24,436 45.3%
1880 25,111 2.8%
1890 23,058 −8.2%
1900 24,159 4.8%
1910 22,995 −4.8%
1920 24,957 8.5%
1930 25,727 3.1%
1940 27,019 5.0%
1950 25,930 −4.0%
1960 25,886 −0.2%
1970 26,352 1.8%
1980 29,669 12.6%
1990 30,001 1.1%
2000 32,052 6.8%
2010 33,309 3.9%
Est. 2013 33,252 −0.2%
U.S. Decennial Census[4]
1790-1960[5] 1900-1990[6]
1990-2000[7] 2010-2013[1]

2010 census[edit]

The 2010 census recorded a population of 33,309 in the county, with a population density of 60.1018/sq mi (23.2054/km2). There were 13,914 housing units, of which 12,723 were occupied.[8]

2000 census[edit]

2000 Census Age Pyramid for Marion County

As of the census[9] of 2000, there were 32,052 people, 12,017 households, and 8,532 families residing in the county. The population density was 58 people per square mile (22/km²). There were 12,755 housing units at an average density of 23 per square mile (9/km²). The racial makeup of the county was 97.46% White, 0.42% Black or African American, 0.19% Native American, 1.03% Asian, 0.04% Pacific Islander, 0.22% from other races, and 0.64% from two or more races. 0.80% of the population were Hispanic or Latino of any race.

There were 12,017 households out of which 33.00% had children under the age of 18 living with them, 61.20% were married couples living together, 6.90% had a female householder with no husband present, and 29.00% were non-families. 25.60% of all households were made up of individuals and 11.90% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.02.

In the county the population was spread out with 25.30% under the age of 18, 10.20% from 18 to 24, 26.50% from 25 to 44, 22.10% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 98.60 males. For every 100 females age 18 and over, there were 95.80 males.

The median income for a household in the county was $42,401, and the median income for a family was $50,052. Males had a median income of $36,460 versus $25,573 for females. The per capita income for the county was $18,717. About 5.20% of families and 7.60% of the population were below the poverty line, including 8.70% of those under age 18 and 10.80% of those age 65 or over.

Red Rock Lake and Dam in Marion County near Pella. Elk Rock State Park is situated on both sides of the lake to the northwest. County road T15 crosses over the dam.

Communities[edit]

Cities[edit]

Unincorporated communities[edit]


Gallery[edit]

See also[edit]

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 20, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  4. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 20, 2014. 
  5. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 20, 2014. 
  6. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 20, 2014. 
  7. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved July 20, 2014. 
  8. ^ "Population & Housing Occupancy Status 2010". United States Census Bureau American FactFinder. Retrieved May 23, 2011. 
  9. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

External links[edit]

Coordinates: 41°19′52″N 93°06′08″W / 41.33111°N 93.10222°W / 41.33111; -93.10222