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Sac County, Iowa facts for kids

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Sac County, Iowa
Map of Iowa highlighting Sac County
Location in the state of Iowa
Map of the USA highlighting Iowa
Iowa's location in the U.S.
Founded January 15, 1851
Seat Sac City
Largest City Sac City
 - Total
 - Land
 - Water

578 sq mi (1,497 km²)
575 sq mi (1,489 km²)
3.3 sq mi (9 km²), 0.6%
 - (2010)
 - Density

18/sq mi (7/km²)
Time zone Central: UTC-6/-5
Named for: Sauk people

Sac County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 10,350. The county seat is Sac City.

In February 2007, in its third annual list of the “Best Places to Live in Rural America”, Progressive Farmer magazine placed Sac County as #7 in the overall rankings. In 2009, the magazine ranked Sac County as the tenth "Best Place" in the Midwest Region.


Sac County was formed on January 15, 1851. It was named after the Sauk people, formerly referred to as the Sac Indians. Sac City was appointed the county seat in 1856, and the first Sac County Courthouse was erected in 1862. The courthouse served its purpose well until 1873 when citizens of Sac County realized the county had outgrown the tiny building. Thus, a second courthouse was built. The building was eighty-five feet by fifty-six feet, a beautiful building of brick with limestone foundations and an impressive tower on the top. It was declared to be one of the best county buildings in Iowa. This courthouse was first used in January 1874, and the old courthouse was sold shortly thereafter. Unfortunately, in 1888 a prisoner set fire to the jail attached to the courthouse while attempting to escape, and both buildings were destroyed. Sac City erected a third courthouse at a cost of thirty thousand dollars. This courthouse has been in use since with minimal structural changes, except for an extensive addition which was completed in the 1980s.


According to the U.S. Census Bureau, the county has a total area of 578 square miles (1,500 km2), of which 575 square miles (1,490 km2) is land and 3.3 square miles (8.5 km2) (0.6%) is water.

Major highways

  • US 20.svg U.S. Highway 20
  • US 71.svg U.S. Highway 71
  • Iowa 39.svg Iowa Highway 39
  • Iowa 110.svg Iowa Highway 110
  • Iowa 175.svg Iowa Highway 175

Adjacent counties


Historical population
Census Pop.
1860 246
1870 1,411 473.6%
1880 8,774 521.8%
1890 14,522 65.5%
1900 17,639 21.5%
1910 16,555 −6.1%
1920 17,500 5.7%
1930 17,641 0.8%
1940 17,639 0.0%
1950 17,518 −0.7%
1960 17,007 −2.9%
1970 15,573 −8.4%
1980 14,118 −9.3%
1990 12,324 −12.7%
2000 11,529 −6.5%
2010 10,350 −10.2%
Est. 2015 10,021 −3.2%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

2010 census

The 2010 census recorded a population of 10,350 in the county, with a population density of 17.974/sq mi (6.940/km2). There were 5,429 housing units, of which 4,482 were occupied.

2000 census

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

As of the census of 2000, there were 11,529 people, 4,746 households, and 3,198 families residing in the county. The population density was 20 people per square mile (8/km²). There were 5,460 housing units at an average density of 10 per square mile (4/km²). The racial makeup of the county was 98.53% White, 0.26% Black or African American, 0.09% Native American, 0.14% Asian, 0.02% Pacific Islander, 0.40% from other races, and 0.57% from two or more races. 0.96% of the population were Hispanic or Latino of any race.

There were 4,746 households out of which 28.60% had children under the age of 18 living with them, 58.30% were married couples living together, 6.20% had a female householder with no husband present, and 32.60% were non-families. 29.40% of all households were made up of individuals and 16.40% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.92.

In the county, the population was spread out with 24.10% under the age of 18, 6.90% from 18 to 24, 23.50% from 25 to 44, 22.80% from 45 to 64, and 22.70% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 95.50 males. For every 100 females age 18 and over, there were 91.80 males.

The median income for a household in the county was $32,874, and the median income for a family was $40,504. Males had a median income of $26,183 versus $19,753 for females. The per capita income for the county was $16,902. About 6.80% of families and 9.90% of the population were below the poverty line, including 14.00% of those under age 18 and 8.20% of those age 65 or over.


Sac County is a rich area for geocaching. The county was "put on the map" when geocachers hid a series of caches a mile wide and 8 miles high to spell "SAC" along rural roads between Sac City and Lytton in August 2011.



Population ranking

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

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Sac City City 2,220
2 Lake View City 1,142
3 Odebolt City 1,013
4 Wall Lake City 819
5 Schaller City 772
6 Early City 557
7 Auburn City 322
8 Lytton (partially in Calhoun County) City 315
9 Nemaha City 85
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