There were 2,600 households out of which 36.2% had children under the age of 18 living with them, 43.0% were married couples living together, 12.3% had a female householder with no husband present, and 39.3% were non-families. 32.7% of all households were made up of individuals and 7.2% had someone living alone who was 65 years of age or older. The average household size was 2.55 and the average family size was 3.31.
In the city the population was spread out with 27.9% under the age of 18, 11.5% from 18 to 24, 36.8% from 25 to 44, 16.7% from 45 to 64, and 7.1% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 103.3 males. For every 100 females age 18 and over, there were 103.4 males.
The median income for a household in the city was $36,508, and the median income for a family was $42,387. Males had a median income of $30,767 versus $26,089 for females. The per capita income for the city was $18,595. About 6.1% of families and 8.0% of the population were below the poverty line, including 9.8% of those under age 18 and 7.2% of those age 65 or over.
A diversity of housing exists within the city including single and multi-family housing as well as various mobile home parks. The 2000 median house value was $139,000 and the median rent cost was $679. United States Census Bureau, 2000.
Park City, Illinois is served by the Warren-Newport Public Library District.