Map of Stephenson County, Illinois

Stephenson County is a county located in the U.S. state of Illinois. According to the 2020 United States Census, it had a population of 44,630. 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.

Stephenson County overview:
Name:Stephenson County
FIPS code:17-177
State:Illinois
Founded:1837
Named for:Benjamin Stephenson
Seat:Freeport
Largest city:Freeport
Total Area:565 sq mi (1,460 km²)
Land Area:565 sq mi (1,460 km²)
Total Population:44,630
Population Density:79/sq mi (30/km²)
Time zone:UTC−6 (Central)
Summer Time Zone (DST):UTC−5 (CDT)
Website:www.co.stephenson.il.us

Stephenson County location map. Where is Stephenson County?

Stephenson County location on the U.S. Map. Where is Stephenson County.
Location of Stephenson County in the the United States.
Stephenson County location on the Illinois map. Where is Stephenson County.
Location of Stephenson County in Illinois.

History

The land that became Stephenson County was first settled by William Waddams in 1832, who founded Waddams Grove. By 1837, population was sufficient to form Stephenson County, taking land from Jo Daviess and Winnebago counties. The county was named for Colonel Benjamin Stephenson, an official of the Illinois Territory.

Stephenson County Road Map

Stephenson CountyStreet Map.
Street map of Stephenson County, Illinois. Source: OpenStreetMap (OSM)
Stephenson CountyMap
Stephenson Countypolitical map.

Geography

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

Climate and weather

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 −29 °F (−34 °C) was recorded in January 2009 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 Highway 20
  • Illinois Route 26
  • Illinois Route 73
  • Illinois Route 75

Stephenson County Topographic Map

Topographic Map of Stephenson County, Illinois
Stephenson County Topo map.

Stephenson County Satellite Map

Satellite Map of Stephenson County, Illinois
Stephenson County satellite map.

Stephenson County Outline Map

Outline Map of Stephenson County, Illinois
Stephenson County outline map.

See also

Map of Illinois State and its subdivision: Map of other states:
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