Marengo City, Illinois
As of the census of 2000, there were 6355 people in the city, organized into 2387 households, and 1694 families residing in the city. The population density was 1598.5 people per square mile (617.18/km˛), giving it the 470th most densely populated city among the Illinois. There were 2475 housing units at an average density of 621.9 per square mile (240.12/km˛). It has an average household size was 2.64 persons, and the average family size was 3.17 persons. Age range in the city was well distributed with 29.3% under the age of 18, 8.6% from 18 to 24, 31% from 25 to 44, 19.2% from 45 to 64, and 12% who were 65 or older. For every 100 females there were 96.3 males. For every 100 females age 18 and over, there were 94.3 males. The median age was 33.5 years, The median age of males was 32.5 years, for females the median age was 34.5 years. The racial or ethnic makeup of the city was 92.07% White, 0.3% Black or African American, 0.27% American Indian, 0.28% Asian, 0.02% Native Hawaiian, 1.53% from two or more races and 5.54% Other races.
The median income for a household in the city was $50214, it is Illinois's 284th wealthiest city by median household income. The median income for a family in the city was $57209, making it the 288th highest city by median family income in Illinois. The per capita income for the city was $22225, making its Illinois's 256th highest city by per capita income. The median income was $28138, Median income for males is $37729, compared with $19831 for females.
In 2000, 1758 pupils and students, of which 829 are male and 929 are female, 27.66% of the total population, are in the education system. Of which, total enrollment of student are in, 123 nursery or pri school, 160 kindergarten, 851 elementary school, 327 high school and 297 College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 6355 |
| April 2000 Estimate | 6373 |
| July 2000 Estimate | 6385 |
| July 2001 Estimate | 6463 |
| July 2002 Estimate | 6580 |
| July 2003 Estimate | 6902 |
| July 2004 Estimate | 7184 |
| July 2005 Estimate | 7331 |
| July 2006 Estimate | 7404 |
| July 2007 Estimate | 7484 |
| July 2008 Estimate | 7520 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 65 | 58 | 123 |
| Kindergarten | 39 | 121 | 160 |
| Elementary school | 448 | 403 | 851 |
| High school | 167 | 160 | 327 |
| College or graduate school | 110 | 187 | 297 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Marengo city, Illinois | $50214 | $57209 | $22225 |
| McHenry County, Illinois | $64826 | $71553 | $26476 |
| Illinois, United States | $46590 | $55545 | $23104 |
| United States | $41994 | $50046 | $21587 |