Plano is a city in Kendall County, Illinois, United States. The population was 5,633 at the 2000 census. The city is rapidly growing with new subdivisions such as Lakewood Springs nearly complete and several other developments under construction or in the planning stages. Former Speaker of the House of Representatives Dennis Hastert lives in Plano.
Plano was the one time headquarters for the Reorganized Church of Jesus Christ of Latter Day Saints (now known as Community of Christ). Joseph Smith III, son of slain LDS movement founder Joseph Smith, Jr., moved to Plano in 1866 and ran the church's printing operation from there.
There were 1,901 households out of which 41.5% had children under the age of 18 living with them, 60.0% were married couples living together, 10.5% had a female householder with no husband present, and 24.4% were non-families. 20.7% of all households were made up of individuals and 9.3% had someone living alone who was 65 years of age or older. The average household size was 2.96 and the average family size was 3.46.
In the city the population was spread out with 31.4% under the age of 18, 9.1% from 18 to 24, 31.7% from 25 to 44, 18.3% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 97.0 males. For every 100 females age 18 and over, there were 96.1 males.
The median income for a household in the city was $46,526, and the median income for a family was $50,950. Males had a median income of $35,938 versus $23,409 for females. The per capita income for the city was $17,837. About 4.6% of families and 5.4% of the population were below the poverty line, including 7.1% of those under age 18 and 5.7% of those age 65 or over.