Stephenson County, Illinois facts for kids

Kids Encyclopedia Facts
Stephenson County, Illinois
Map
Map of Illinois highlighting Stephenson County
Location in the state of Illinois
Map of the USA highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1837
Seat Freeport
Largest City Freeport
Area
 - Total
 - Land
 - Water

565 sq mi (1,463 km²)
565 sq mi (1,463 km²)
0.5 sq mi (1 km²), 0.09%
Population
 - (2010)
 - Density

47,711
85/sq mi (33/km²)
Time zone Central: UTC-6/-5
Website: www.co.stephenson.il.us
Named for: Benjamin Stephenson

Stephenson County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 47,711. Its county seat is Freeport.

Stephenson County is included in the Freeport, IL Micropolitan Statistical Area, which is also included in the Rockford-Freeport-Rochelle, IL Combined Statistical Area.

History

The land that became Stephenson County was first settled by William Waddams in 1832, who founded Waddams Grove. Five years later in 1837, Stephenson County was formed out of Jo Daviess and Winnebago counties. The county was named for Colonel Benjamin Stephenson, an official of the Illinois Territory.

Geography

According to the U.S. Census Bureau, the county has a total area of 565 square miles (1,460 km2), of which 565 square miles (1,460 km2) is land and 0.5 square miles (1.3 km2) (0.09%) is water.

Climate and weather

Weather chart for Freeport, Illinois
J F M A M J J A S O N D
 
 
1.3
 
25
9
 
 
1.3
 
31
14
 
 
2.1
 
43
25
 
 
3.2
 
57
36
 
 
4
 
69
47
 
 
4.5
 
78
57
 
 
3.6
 
82
62
 
 
4.1
 
80
59
 
 
3.7
 
73
50
 
 
2.6
 
61
39
 
 
2.7
 
44
28
 
 
1.7
 
30
16
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years the average temperatures in the county seat of Freeport, have ranged from a low of 9 °F (−13 °C) in January to a high of 82 °F (28 °C) in July, although a record low of −27 °F (−33 °C) was recorded in January 1985 and a record high of 101 °F (38 °C) was recorded in July 1988. Average monthly precipitation ranged from 1.33 inches (34 mm) in January to 4.46 inches (113 mm) in June.

Adjacent counties

Major highways

  • US 20.svg U.S. Highway 20
  • Illinois 26.svg Illinois Route 26
  • Illinois 73.svg Illinois Route 73
  • Illinois 75.svg Illinois Route 75

Demographics

Historical population
Census Pop.
1840 2,800
1850 11,666 316.6%
1860 25,112 115.3%
1870 30,608 21.9%
1880 31,963 4.4%
1890 31,338 −2.0%
1900 34,933 11.5%
1910 36,821 5.4%
1920 37,743 2.5%
1930 40,064 6.1%
1940 40,646 1.5%
1950 41,595 2.3%
1960 46,207 11.1%
1970 48,861 5.7%
1980 49,536 1.4%
1990 48,052 −3.0%
2000 48,979 1.9%
2010 47,711 −2.6%
Est. 2015 45,749 −4.1%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 47,711 people, 19,845 households, and 13,015 families residing in the county. The population density was 84.5 inhabitants per square mile (32.6/km2). There were 22,081 housing units at an average density of 39.1 per square mile (15.1/km2). The racial makeup of the county was 86.5% white, 9.0% black or African American, 0.6% Asian, 0.2% American Indian, 1.2% from other races, and 2.5% from two or more races. Those of Hispanic or Latino origin made up 2.9% of the population. In terms of ancestry, 46.6% were German, 12.5% were Irish, 10.0% were English, and 8.0% were American.

Of the 19,845 households, 28.6% had children under the age of 18 living with them, 50.3% were married couples living together, 11.2% had a female householder with no husband present, 34.4% were non-families, and 29.7% of all households were made up of individuals. The average household size was 2.36 and the average family size was 2.90. The median age was 43.1 years.

The median income for a household in the county was $43,304 and the median income for a family was $54,224. Males had a median income of $41,672 versus $29,510 for females. The per capita income for the county was $22,608. About 12.3% of families and 14.8% of the population were below the poverty line, including 24.1% of those under age 18 and 7.3% of those age 65 or over.

Communities

Kent Il Scenic view3
A northerly look across Stephenson County's western edge from an overlook near Kent, Illinois

City

Town

Villages

Census-designated place

Unincorporated communities

Townships

  • Buckeye
  • Dakota
  • Erin
  • Florence
  • Freeport
  • Harlem
  • Jefferson
  • Kent
  • Lancaster
  • Loran
  • Oneco
  • Ridott
  • Rock Grove
  • Rock Run
  • Silver Creek
  • Waddams
  • West Point
  • Winslow

Stephenson County, Illinois Facts for Kids. Kiddle Encyclopedia.