Crystal Lake City, Illinois
According to 2000 Census Bureau, there were 38000 people, 13070 households, and 9852 families residing in the city. The population density was 2339.5 people per square mile (903.29/km˛), it is Illinois's 225th most densely populated city. There were 13459 housing units at an average density of 828.8 per square mile (320/km˛). The average household size was 2.89 and the average family size was 3.36. In the city Age distribution was 31.6% under the age of 18, 6.7% from 18 to 24, 33.1% from 25 to 44, 19.6% from 45 to 64, and 9% who were 65 or older. For every 100 females there were 97.8 males. For every 100 females age 18 and over, there were 92.9 males. The median age is 34.1 years, The median age of males was 32.7 years, for females the median age was 35.2 years. The racial or ethnic makeup of the city was 94.07% White, 0.56% Black or African American, 0.16% American Indian, 1.97% Asian, 0.02% Native Hawaiian, 1.05% from two or more races and 2.17% Other races.
The median income for a household in the city was $66872, it is 113th wealthiest city by median household income in Illinois. The median income for a family in the city was $75396, making it the 111th wealthiest city by median family income among the Illinois. The per capita income for the city was $26146, making its Illinois's 149th highest city by per capita income. The median income was $31731, Median income for males is $46168, compared with $21590 for females.
In 2000, 12019 pupils and students, of which 50.89% are male and 49.11% are female, 31.63% of the total population, are in the education system. Of which, percentage of enrollment student are in, 8.52% nursery or pri school, 5.7% kindergarten, 47.72% elementary school, 21.12% high school and 16.93% College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 38000 |
| April 2000 Estimate | 38214 |
| July 2000 Estimate | 38362 |
| July 2001 Estimate | 39138 |
| July 2002 Estimate | 39703 |
| July 2003 Estimate | 40051 |
| July 2004 Estimate | 40341 |
| July 2005 Estimate | 40646 |
| July 2006 Estimate | 40977 |
| July 2007 Estimate | 41416 |
| July 2008 Estimate | 41797 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 569 | 455 | 1024 |
| Kindergarten | 388 | 297 | 685 |
| Elementary school | 2945 | 2791 | 5736 |
| High school | 1394 | 1145 | 2539 |
| College or graduate school | 820 | 1215 | 2035 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Crystal Lake city, Illinois | $66872 | $75396 | $26146 |
| McHenry County, Illinois | $64826 | $71553 | $26476 |
| Illinois, United States | $46590 | $55545 | $23104 |
| United States | $41994 | $50046 | $21587 |