Mason County, Illinois facts for kids

Kids Encyclopedia Facts
Mason County, Illinois
Map

Location in the state of Illinois
Map of the USA highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1841
Seat Havana
Largest City Havana
Area
 - Total
 - Land
 - Water

563 sq mi (1,458 km²)
539 sq mi (1,396 km²)
24 sq mi (62 km²), 4.3%
Population
 - (2010)
 - Density

14,666
27/sq mi (10/km²)
Time zone Central: UTC-6/-5
Website: www.masoncountyil.org
Named for: George Mason

Mason County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666. Its county seat is Havana. The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for the adoption of the United States Bill of Rights.

History

Mason County was created in 1841 out of portions of Tazewell and Menard counties.

Geography

According to the U.S. Census Bureau, the county has an area of 563 square miles (1,460 km2), of which 539 square miles (1,400 km2) is land and 24 square miles (62 km2) (4.3%) is water.

Mason County is bound on the south by the Sangamon River, and on the west by the Illinois River. These rivers join at the county's southwest tip.

The soil covering much of Mason County is very sandy. This was formed during the melting of the Wisconsin Glacier about 10,000 years ago. Meltwater from the glacier deposited large amounts of sand in a delta region near at the junction of the Sangamon and Illinois Rivers.

The sandy soil does not hold water well, quickly exposing crops to drought conditions as the water table drops during periods of low precipitation. However, the soil is very good for growing vegetables that are otherwise not common in Illinois. Modern irrigation has made this a highly productive agricultural area.

A sand wetland on the Illinois River is managed by the U.S. Fish and Wildlife Service as the Chautauqua National Wildlife Refuge.

Climate and weather

Weather chart for Havana, Illinois
J F M A M J J A S O N D
 
 
1.9
 
32
14
 
 
1.9
 
38
19
 
 
3
 
50
30
 
 
3.5
 
63
40
 
 
4.4
 
74
51
 
 
3.8
 
84
60
 
 
3.9
 
88
64
 
 
3.5
 
86
61
 
 
3.2
 
80
52
 
 
2.9
 
68
41
 
 
3.3
 
51
30
 
 
2.6
 
37
19
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Havana have ranged from a low of 14 °F (−10 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −30 °F (−34 °C) was recorded in January 1999 and a record high of 106 °F (41 °C) was recorded in July 1983. Average monthly precipitation ranged from 1.85 inches (47 mm) in January to 4.43 inches (113 mm) in May.

Major highways

  • US 136.svg U.S. Highway 136
  • Illinois 10.svg Illinois Route 10
  • Illinois 29.svg Illinois Route 29
  • Illinois 78.svg Illinois Route 78
  • Illinois 97.svg Illinois Route 97

Adjacent counties

National protected area

  • Chautauqua National Wildlife Refuge (part)

Demographics

Historical population
Census Pop.
1850 5,921
1860 10,931 84.6%
1870 16,184 48.1%
1880 16,242 0.4%
1890 16,067 −1.1%
1900 17,491 8.9%
1910 17,377 −0.7%
1920 16,634 −4.3%
1930 15,115 −9.1%
1940 15,358 1.6%
1950 15,326 −0.2%
1960 15,193 −0.9%
1970 16,161 6.4%
1980 19,492 20.6%
1990 16,269 −16.5%
2000 16,038 −1.4%
2010 14,666 −8.6%
Est. 2015 13,701 −6.6%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 14,666 people, 6,079 households, and 4,060 families residing in the county. The population density was 27.2 inhabitants per square mile (10.5/km2). There were 7,077 housing units at an average density of 13.1 per square mile (5.1/km2). The racial makeup of the county was 98.1% white, 0.4% black or African American, 0.3% Asian, 0.2% American Indian, 0.1% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 0.8% of the population. In terms of ancestry, 33.8% were German, 15.6% were American, 11.1% were English, and 10.3% were Irish.

Of the 6,079 households, 28.9% had children under the age of 18 living with them, 52.1% were married couples living together, 10.3% had a female householder with no husband present, 33.2% were non-families, and 28.4% of all households were made up of individuals. The average household size was 2.38 and the average family size was 2.87. The median age was 44.0 years.

The median income for a household in the county was $42,461 and the median income for a family was $51,348. Males had a median income of $43,448 versus $31,087 for females. The per capita income for the county was $23,427. About 13.8% of families and 15.2% of the population were below the poverty line, including 23.6% of those under age 18 and 7.5% of those age 65 or over.

Communities

Cities

Town

Villages

Census-designated place

Other unincorporated communities

Townships

  • Allens Grove
  • Bath
  • Crane Creek
  • Forest City
  • Havana
  • Kilbourne
  • Lynchburg
  • Manito
  • Mason City
  • Pennsylvania
  • Quiver
  • Salt Creek
  • Sherman

Mason County, Illinois Facts for Kids. Kiddle Encyclopedia.