Richland County, Illinois

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Richland County is a county located in the U.S. state of Illinois. As of 2000, the population was 16,149. Its county seat is Olney, Illinois[1].



According to the U.S. Census Bureau, the county has a total area of 362 square miles (938 km²), of which 360 square miles (933 km²) is land and 2 square miles (5 km²) (0.52%) is water.

Major highways


Bonpas, Claremont, Decker, Denver, German, Madison, Noble, Olney, Preston

Adjacent counties


As of the census[2] of 2000, there were 16,149 people, 6,660 households, and 4,535 families residing in the county. The population density was 45 people per square mile (17/km²). There were 7,468 housing units at an average density of 21 per square mile (8/km²). The racial makeup of the county was 98.16% White, 0.29% Black or African American, 0.12% Native American, 0.57% Asian, 0.04% Pacific Islander, 0.22% from other races, and 0.59% from two or more races. 0.77% of the population were Hispanic or Latino of any race. 34.4% were of German, 27.2% American, 10.7% English and 7.8% Irish ancestry according to Census 2000.

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