ROCK ISLAND COUNTY, ILLINOIS

'Rock Island County' is a county located in the U.S. state of Illinois. As of 2000, the population was 149,374. Its county seat is Rock Island, Illinois⁶. It is one of the four counties that make up the Davenport-Moline-Rock Island Metropolitan Statistical Area.^[1]

Contents

Geography

Adjacent Counties

History

Demographics

Cities and towns

See also

References

Geography

According to the U.S. Census Bureau, the county has a total area of 1,168 km² (451 mi²). 1,105 km² (427 mi²) of it is land and 63 km² (24 mi²) of it (5.41%) is water.

Adjacent Counties

★ Clinton County, Iowa (north) across the Mississippi River

★ Whiteside County (northeast)

★ Henry County (southeast)

★ Mercer County (south)

★ Louisa County, Iowa (southwest) across the Mississippi River

★ Muscatine County, Iowa (west) across the Mississippi River

★ Scott County, Iowa (northwest) across the Mississippi River

History

Rock Island County was formed in 1831 out of Jo Daviess County. It was named for Rock Island, an island in the Mississippi River now known as Arsenal Island.^[2]

Demographics

As of the census² of 2000, there were 149,374 people, 60,712 households, and 39,159 families residing in the county. The population density was 135/km² (350/mi²). There were 64,489 housing units at an average density of 58/km² (151/mi²). The racial makeup of the county was 85.52% White, 7.54% Black or African American, 0.27% Native American, 1.02% Asian American, 0.03% Pacific Islander, 3.76% from other races, and 1.86% from two or more races. 8.56% of the population were Hispanic or Latino of any race.
There were 60,712 households out of which 28.90% had children under the age of 18 living with them, 49.10% were married couples living together, 11.60% had a female householder with no husband present, and 35.50% were non-families. 30.20% of all households were made up of individuals and 12.50% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.97.
In the county the population was spread out with 23.80% under the age of 18, 10.00% from 18 to 24, 27.30% from 25 to 44, 23.80% from 45 to 64, and 15.10% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 94.40 males. For every 100 females age 18 and over, there were 91.40 males.
The median income for a household in the county was $38,608, and the median income for a family was $47,956. Males had a median income of $35,998 versus $24,234 for females. The per capita income for the county was $20,164. About 8.10% of families and 10.70% of the population were below the poverty line, including 15.70% of those under age 18 and 6.80% of those age 65 or over.

Cities and towns

★ Andalusia

★ Buffalo Prairie

★ Carbon Cliff

★ Castle Junction

★ Coal Valley (partial)

★ Cordova

★ Coyne Center

★ East Moline

★ Edgington

★ Ginger Hill

★ Hampton

★ Hillsdale

★ Illinois City

★ Milan

★ Moline

★ Oak Grove

★ Port Byron

★ Rapids City

★ Reynolds

★ Rock Island

★ Rock Island Arsenal

★ Taylor Ridge

★ Silvis

★ Zuma Township

See also

★ Quad City International Airport

★ Upper Mississippi River National Wildlife and Fish Refuge

References