The following list is an overview of the counties for which we currently provide zoning information in Illinois.
By clicking on a county listed below, you'll be taken to a page with a list of all the municipalities in that county for which we have zoning information available.
| Illinois | United States | |
|---|---|---|
| Total Square Miles | 57,913.55 | 3,796,742.23 |
| Land Square Miles | 55,518.93 | 3,531,905.43 |
| Percentage of Land | 95.87% | 93.02% |
| Water Square Miles | 2,394.62 | 264,836.79 |
| Percentage of Water | 4.130000000000001% | 6.98% |
| Illinois | United States | |
|---|---|---|
| Total Housing Units | 5,440,294 | 142,148,050 |
| Housing Units per Square Mile | 93.94 | 37.44 |
| Occupied housing units | 91.8% | 89.7% |
| Vacant housing units | 8.2% | 10.3% |
| Homeowner vacancy rate | 1.1 | 0.9 |
| Rental vacancy rate | 5.8 | 5.2 |
| Illinois | United States | |
|---|---|---|
| 1-unit, detached | 58.8% | 61.8% |
| 1-unit, attached | 6.0% | 6.2% |
| 2-units | 5.2% | 3.3% |
| 3 or 4 units | 6.2% | 4.3% |
| 5 to 9 units | 6.2% | 4.5% |
| 10 to 19 units | 4.0% | 4.2% |
| 20+ units | 11.3% | 10.0% |
| Mobile home | 2.3% | 5.6% |
| Boat, RV, van, etc. | 0.0% | 0.1% |
| Illinois | United States | |
|---|---|---|
| Built 2020 or later | 0.3% | 0.8% |
| Built 2010 to 2019 | 5.1% | 9.6% |
| Built 2000 to 2009 | 11.4% | 13.9% |
| Built 1990 to 1999 | 10.2% | 12.3% |
| Built 1980 to 1989 | 9.2% | 13.0% |
| Built 1970 to 1979 | 14.1% | 14.4% |
| Built 1960 to 1969 | 11.5% | 10.0% |
| Built 1950 to 1959 | 12.0% | 9.7% |
| Built 1940 to 1949 | 5.7% | 4.6% |
| Built 1939 or earlier | 20.7% | 11.9% |
| Illinois | United States | |
|---|---|---|
| Occupied housing units | 4,991,641 | 127,544,730 |
| Owner-occupied units | 3,370,654 | 83,396,988 |
| Owner-occupied | 67.5% | 65.4% |
| Renter-occupied | 32.5% | 34.6% |
| Avg. Household Size - Owners | 2.62 | 2.65 |
| Avg. Household Size - Renters | 2.18 | 2.33 |
| Illinois | United States | |
|---|---|---|
| Less than $50,000 | 6.1% | 6.0% |
| $50,000 to $99,999 | 10.8% | 7.9% |
| $100,000 to $149,000 | 11.6% | 8.9% |
| $150,000 to $199,999 | 13.8% | 11.2% |
| $200,000 to $299,999 | 23.3% | 19.5% |
| $300,000 to $499,999 | 23.2% | 24.5% |
| $500,000 to $999,999 | 9.3% | 17.0% |
| $1,000,000 or more | 2.0% | 5.0% |
| Median | $231,500 | $281,400 |
