Jasper County, Iowa facts for kids

Kids Encyclopedia Facts
Jasper County, Iowa
Map
Map of Iowa highlighting Jasper County
Location in the state of Iowa
Map of the USA highlighting Iowa
Iowa's location in the U.S.
Statistics
Founded 1846
Seat Newton
Largest City Newton
Area
 - Total
 - Land
 - Water

733 sq mi (1,898 km²)
730 sq mi (1,891 km²)
2.5 sq mi (6 km²), 0.3%
Population
 - (2010)
 - Density

36,842
50/sq mi (19/km²)
Time zone Central: UTC-6/-5
Website: www.co.jasper.ia.us
Named for: William Jasper

Jasper County is a county located in the US state of Iowa. As of the 2010 census, the population was 36,842. The county seat is Newton. The county was organized in 1846 and is named after Sergeant William Jasper, a Revolutionary War hero.

Jasper County comprises the Newton, IA Micropolitan Statistical Area, which is part of the Des Moines-Ames-West Des Moines, IA Combined Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of 733 square miles (1,900 km2), of which 730 square miles (1,900 km2) is land and 2.5 square miles (6.5 km2) (0.3%) is water. The North and South Skunk River flow through the county. Bodies of water include Lake Mariposa and Rock Creek.

Major highways

  • I-80.svg Interstate 80
  • US 6.svg U.S. Highway 6
  • US 65.svg U.S. Highway 65
  • Iowa 14.svg Iowa Highway 14
  • Iowa 117.svg Iowa Highway 117
  • Iowa 163.svg Iowa Highway 163
  • Iowa 224.svg Iowa Highway 224
  • Iowa 330.svg Iowa Highway 330

Adjacent counties

Demographics

Historical population
Census Pop.
1850 1,280
1860 9,883 672.1%
1870 22,116 123.8%
1880 25,963 17.4%
1890 24,943 −3.9%
1900 26,976 8.2%
1910 27,034 0.2%
1920 27,855 3.0%
1930 32,936 18.2%
1940 31,496 −4.4%
1950 32,305 2.6%
1960 35,282 9.2%
1970 35,425 0.4%
1980 36,425 2.8%
1990 34,795 −4.5%
2000 37,213 6.9%
2010 36,842 −1.0%
Est. 2015 36,827 0.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

2010 census

The 2010 census recorded a population of 36,842 in the county, with a population density of 50.4692/sq mi (19.4863/km2). There were 16,181 housing units, of which 14,806 were occupied.

2000 census

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

As of the census of 2000, there were 37,213 people, 14,689 households, and 10,267 families residing in the county. The population density was 51 people per square mile (20/km²). There were 15,659 housing units at an average density of 22 per square mile (8/km²). The racial makeup of the county was 97.58% White, 0.83% Black or African American, 0.22% Native American, 0.44% Asian, 0.05% Pacific Islander, 0.26% from other races, and 0.62% from two or more races. 1.01% of the population were Hispanic or Latino of any race.

There were 14,689 households out of which 31.70% had children under the age of 18 living with them, 59.30% were married couples living together, 7.40% had a female householder with no husband present, and 30.10% were non-families. 26.10% of all households were made up of individuals and 11.80% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.92.

In the county, the population was spread out with 24.60% under the age of 18, 7.40% from 18 to 24, 28.60% from 25 to 44, 23.40% from 45 to 64, and 16.00% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 101.60 males. For every 100 females age 18 and over, there were 99.70 males.

The median income for a household in the county was $41,683, and the median income for a family was $50,071. Males had a median income of $36,001 versus $24,770 for females. The per capita income for the county was $19,622. About 4.80% of families and 6.50% of the population were below the poverty line, including 7.10% of those under age 18 and 7.00% of those age 65 or over.

Communities

Cities

Unincorporated communities

Townships

  • Buena Vista
  • Clear Creek
  • Des Moines
  • Elk Creek
  • Fairview
  • Hickory Grove
  • Independence
  • Kellogg
  • Lynn Grove
  • Malaka
  • Mariposa
  • Mound Prairie
  • Newton
  • Palo Alto
  • Poweshiek
  • Richland
  • Rock Creek
  • Sherman
  • Washington

Population ranking

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

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Newton City 15,254
2 Mitchellville (mostly in Polk County) City 2,254
3 Colfax City 2,093
4 Monroe City 1,830
5 Prairie City City 1,680
6 Baxter City 1,101
7 Sully City 821
8 Kellogg City 599
9 Lynnville City 379
10 Mingo City 302
11 Lambs Grove City 172
12 Oakland Acres City 156
13 Reasnor City 152
14 Valeria City 57

Jasper County, Iowa Facts for Kids. Kiddle Encyclopedia.