Scott County, Illinois

state of Illinois. According to the 2020 census, it had a population of 4,949, making it the fourth-least populous county in Illinois. Its county seat is Winchester.

Scott County
County
Scott County Courthouse, Winchester
Location within the U.S. state of Illinois
Illinois's location within the U.S.
Coordinates: 39°39′N 90°29′W / 39.65°N 90.48°W / 39.65; -90.48
Country	United States
State	Illinois
Founded	1839
Named for	Scott County, Kentucky
Seat	Winchester
Largest city	Winchester
Area
• Total	253 sq mi (660 km2)
• Land	251 sq mi (650 km2)
• Water	1.9 sq mi (5 km2)  0.7%
Population  (2020)
• Total	4,949
• Density	20/sq mi (7.6/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	15th

Scott County is part of the Jacksonville, IL Micropolitan Statistical Area, which is also included in the Springfield-Jacksonville-Lincoln, IL Combined Statistical Area.

Scott County was formed in 1839 out of Morgan County. It was named for Scott County, Kentucky.

•  
  Scott County at the time of its creation in 1839

According to the U.S. Census Bureau, the county has a total area of 253 square miles (660 km²), of which 251 square miles (650 km²) is land and 1.9 square miles (4.9 km²) (0.7%) is water. The county's western boundary is formed by the Illinois River.

Climate and weather

In recent years, average temperatures in the county seat of Winchester have ranged from a low of 16 °F (−9 °C) in January to a high of 87 °F (31 °C) in July, although a record low of −26 °F (−32 °C) was recorded in January 1912 and a record high of 113 °F (45 °C) was recorded in July 1934. Average monthly precipitation ranged from 1.60 inches (41 mm) in January to 4.34 inches (110 mm) in May.

Major highways

•   Interstate 72
•   U.S. Route 36
•   U.S. Route 67
•   Illinois Route 106
•   Illinois Route 100

Adjacent counties

• Morgan County (east)
• Greene County (south)
• Pike County (west)

As of the 2010 census, there were 5,355 people, 2,214 households, and 1,516 families living in the county. The population density was 21.3 inhabitants per square mile (8.2/km²). There were 2,459 housing units at an average density of 9.8 per square mile (3.8/km²). The racial makeup of the county was 98.6% white, 0.2% Asian, 0.2% American Indian, 0.2% black or African American, 0.1% from other races, and 0.7% from two or more races. Those of Hispanic or Latino origin made up 0.8% of the population. In terms of ancestry, 26.3% were German, 24.3% were American, 18.0% were English, and 16.2% were Irish.

Of the 2,214 households, 32.0% had children under the age of 18 living with them, 54.7% were married couples living together, 9.1% had a female householder with no husband present, 31.5% were non-families, and 27.3% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.89. The median age was 42.7 years.

The median income for a household in the county was $49,462 and the median income for a family was $64,412. Males had a median income of $40,781 versus $32,011 for females. The per capita income for the county was $27,530. About 6.5% of families and 9.1% of the population were below the poverty line, including 9.5% of those under age 18 and 10.2% of those age 65 or over.

City

• Winchester

Town

• Naples

Villages

• Alsey
• Bluffs
• Exeter
• Glasgow
• Manchester

Unincorporated communities

• Bloomfield
• Merritt
• Oxville
• Riggston

Population ranking

The population ranking of the following table is based on the 2020 census of Scott County.

† county seat

• National Register of Historic Places listings in Scott County

39°39′N 90°29′W / 39.65°N 90.48°W / 39.65; -90.48