| Stephenson County, Illinois | |
Location in the state of Illinois |
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Illinois's location in the U.S. |
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| Founded | 1837 |
|---|---|
| Seat | Freeport |
| Largest city | Freeport |
| Area - Total - Land - Water |
565.06 sq mi (1,463 km²) 564.52 sq mi (1,462 km²) 0.54 sq mi (1 km²), 0.10% |
| Population - (2010) - Density |
47,711 84/sq mi (34/km²) |
| Time zone | Central: UTC-6/-5 |
| Website | www.co.stephenson.il.us |
Stephenson County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 47,711, which is a decrease of 2.6% from 48,979 in 2000.[1] Its county seat is Freeport.[2] The Freeport Micropolitan Statistical Area includes all of Stephenson County.
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Stephenson County was formed in 1837 out of Jo Daviess and Winnebago Counties. The County was named for Colonel Benjamin Stephenson, an official of the Illinois Territory.
According to the 2010 census, the county has a total area of 565.06 square miles (1,463.5 km2), of which 564.52 square miles (1,462.1 km2) (or 99.90%) is land and 0.54 square miles (1.4 km2) (or 0.10%) is water.[3]
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1900 | 34,933 |
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| 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% | |
| IL Counties 1900-1990 | |||
As of the census[4] of 2000, there were 48,979 people, 19,785 households, and 13,473 families residing in the county. The population density was 87 people per square mile (34/km²). There were 21,713 housing units at an average density of 38 per square mile (15/km²). The racial makeup of the county was 89.29% White, 7.68% Black or African American, 0.15% Native American, 0.68% Asian, 0.04% Pacific Islander, 0.63% from other races, and 1.53% from two or more races. 1.53% of the population were Hispanic or Latino of any race. 45.0% were of German, 7.2% American, 7.0% Irish and 6.3% English ancestry according to Census 2000.
There were 19,785 households out of which 30.70% had children under the age of 18 living with them, 55.40% were married couples living together, 9.50% had a female householder with no husband present, and 31.90% were non-families. 27.60% of all households were made up of individuals and 12.60% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.97.
In the county the population was spread out with 25.20% under the age of 18, 7.60% from 18 to 24, 27.50% from 25 to 44, 23.30% from 45 to 64, and 16.40% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 93.10 males. For every 100 females age 18 and over, there were 90.30 males.
The median income for a household in the county was $40,366, and the median income for a family was $48,510. Males had a median income of $36,300 versus $24,238 for females. The per capita income for the county was $19,794. About 6.50% of families and 9.00% of the population were below the poverty line, including 11.60% of those under age 18 and 8.50% of those age 65 or over.
| Freeport, Illinois | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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In recent years, 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.[5]
| Lafayette County, Wisconsin | Green County, Wisconsin | |||
| Jo Daviess County | Winnebago County | |||
| Stephenson County, Illinois | ||||
| Carroll County | Ogle County |
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