Warrick County is the eastern part of the Evansville, IN–KY Metropolitan Statistical Area. The county's alphanumeric county number is 87.
2007 61,101 2000 52,383 1990 44,920 1980 41,474 1970 27,972 1960 23,577 1950 21,527 1940 19,435 1930 18,230 1920 19,862 1910 21,911 1900 22,329 1890 21,161 1880 20,162 1870 17,653 1860 13,261 1850 8,811 1840 6,321 1830 2,877 1820 1,749
As of the census of 2000, there were 52,383 people, 19,438 households, and 15,181 families residing in the county. The population density was 136 people per square mile (53/km²). There were 20,546 housing units at an average density of 54 per square mile (21/km²). The racial makeup of the county was 97.46% White, 1.00% Black or African American, 0.15% Native American, 0.63% Asian, 0.05% Pacific Islander, 0.16% from other races, and 0.55% from two or more races. 0.65% of the population were Hispanic or Latino of any race. 33.2% were of German, 20.8% American, 12.4% English and 10.3% Irish ancestry according to Census 2000.
There were 19,438 households out of which 37.70% had children under the age of 18 living with them, 66.90% were married couples living together, 8.20% had a female householder with no husband present, and 21.90% were non-families. 18.60% of all households were made up of individuals and 7.50% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.03.
In the county the population was spread out with 26.90% under the age of 18, 7.20% from 18 to 24, 29.70% from 25 to 44, 25.50% from 45 to 64, and 10.80% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.60 males. For every 100 females age 18 and over, there were 93.60 males.
The median income for a household in the county was $48,814, and the median income for a family was $55,497. Males had a median income of $40,491 versus $24,334 for females. The per capita income for the county was $21,893. About 3.50% of families and 5.30% of the population were below the poverty line, including 7.30% of those under age 18 and 6.10% of those age 65 or over.