Columbia City, Illinois
As of the census of 2000, there were 7922 people in the city, organized into 3112 households, and 2219 families living in the city. The population density was 841.5 people per square mile (324.9/kmē), it is 425th least densely populated city in Illinois. There were 3219 housing units at an average density of 342.1 per square mile (132.09/kmē). The average household size was 2.5 and the average family size was 3.01. In the city the population is diverse age-wise, with 25.9% under the age of 18, 6.2% from 18 to 24, 32% from 25 to 44, 20.6% from 45 to 64, and 15.2% who were 65 or older. For every 100 females there were 93.5 males. For every 100 females age 18 and over, there were 88.6 males. The median age was 37.6 years, The median age of males and females living in Columbia City was 36.5 and 38.7 years respectively. The racial makeup of the city was 98.52% White, 0.1% Black or African American, 0.19% American Indian, 0.34% Asian, 0% Native Hawaiian, 0.64% from two or more races and 0.2% Other races.
The median income for a household in the city was $58003, it is 177th wealthiest city by median household income in Illinois. The median income for a family in the city was $69059, it is 147th wealthiest city by median family income in Illinois. The per capita income for the city was $26767, making it the 134th highest city by per capita income in Illinois. The median income of city was $32104, Males have a median income of $40704 versus $25400 for females.
In 2000, 2154 pupils and students, of which 53.06% are male and 46.94% are female, 27.19% of the total population, are in the education system. Of which, percentage of enrollment student are in, 8.17% nursery or pri school, 4.18% kindergarten, 46.15% elementary school, 21.73% high school and 19.78% College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 7922 |
| April 2000 Estimate | 7960 |
| July 2000 Estimate | 7996 |
| July 2001 Estimate | 8147 |
| July 2002 Estimate | 8380 |
| July 2003 Estimate | 8580 |
| July 2004 Estimate | 8712 |
| July 2005 Estimate | 8912 |
| July 2006 Estimate | 9115 |
| July 2007 Estimate | 9220 |
| July 2008 Estimate | 9342 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 79 | 97 | 176 |
| Kindergarten | 75 | 15 | 90 |
| Elementary school | 518 | 476 | 994 |
| High school | 256 | 212 | 468 |
| College or graduate school | 215 | 211 | 426 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Columbia city, Illinois | $58003 | $69059 | $26767 |
| Monroe County, Illinois | $55320 | $62397 | $22954 |
| Illinois, United States | $46590 | $55545 | $23104 |
| United States | $41994 | $50046 | $21587 |