# Counties in Illinois by housing units authorized by building permits, 2025

All 98 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `building_permit_units`
- Unit: count
- Definition: Annual number of new privately owned housing units authorized by building permits, from the US Census Bureau Building Permits Survey.
- Source: U.S. Census Bureau, Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation (https://www2.census.gov/econ/bps/County/co2025a.txt)
- Retrieved: 2026-10-10
- Citation: U.S. Census Bureau. Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. https://www2.census.gov/econ/bps/County/co2025a.txt. Retrieved 2026-10-10.
- Web page: https://invokely.ai/rankings/building-permit-housing-units/illinois-counties
- CSV: https://invokely.ai/download/rankings/building-permit-housing-units/illinois-counties.csv

| Rank | Place | count |
|---:|---|---:|
| 1 | Cook County | 4,969 |
| 2 | Will County | 1,993 |
| 3 | Kane County | 1,629 |
| 4 | Lake County | 1,468 |
| 5 | McHenry County | 1,393 |
| 6 | DuPage County | 1,265 |
| 7 | Champaign County | 860 |
| 8 | Kendall County | 733 |
| 9 | St. Clair County | 463 |
| 10 | Madison County | 435 |
| 11 | Winnebago County | 309 |
| 12 | McLean County | 269 |
| 13 | DeKalb County | 264 |
| 14 | Sangamon County | 224 |
| 15 | Rock Island County | 187 |
| 16 | Williamson County | 141 |
| 17 | Tazewell County | 118 |
| 18 | Grundy County | 114 |
| 19 | Kankakee County | 113 |
| 20 | Ogle County | 87 |
| 21 | Peoria County | 73 |
| 22 | Macoupin County | 70 |
| 23 | Boone County | 68 |
| 24 | Lawrence County | 67 |
| 25 | Monroe County | 65 |
| 26 | Logan County | 64 |
| 27 | Christian County | 60 |
| 27 | LaSalle County | 60 |
| 29 | Clinton County | 51 |
| 30 | Effingham County | 50 |
| 30 | Livingston County | 50 |
| 32 | Shelby County | 46 |
| 33 | Jo Daviess County | 42 |
| 34 | Jersey County | 39 |
| 34 | Piatt County | 39 |
| 34 | Woodford County | 39 |
| 37 | Macon County | 38 |
| 38 | Adams County | 36 |
| 39 | Lee County | 32 |
| 40 | Moultrie County | 29 |
| 41 | Douglas County | 28 |
| 42 | Bond County | 25 |
| 43 | Perry County | 23 |
| 43 | Whiteside County | 23 |
| 45 | Franklin County | 19 |
| 46 | Carroll County | 18 |
| 46 | Fulton County | 18 |
| 46 | Henry County | 18 |
| 46 | Mercer County | 18 |
| 50 | Bureau County | 16 |
| 50 | Coles County | 16 |
| 52 | Morgan County | 15 |
| 52 | Washington County | 15 |
| 54 | Ford County | 14 |
| 54 | Iroquois County | 14 |
| 54 | Stephenson County | 14 |
| 57 | De Witt County | 13 |
| 58 | Jefferson County | 12 |
| 58 | Marion County | 12 |
| 60 | Menard County | 11 |
| 60 | Montgomery County | 11 |
| 60 | Pike County | 11 |
| 63 | Union County | 10 |
| 63 | Vermilion County | 10 |
| 65 | Clark County | 9 |
| 65 | Crawford County | 9 |
| 67 | Massac County | 8 |
| 67 | Richland County | 8 |
| 69 | Brown County | 7 |
| 69 | Randolph County | 7 |
| 69 | Wabash County | 7 |
| 72 | Jasper County | 6 |
| 72 | Mason County | 6 |
| 72 | Putnam County | 6 |
| 75 | Calhoun County | 5 |
| 76 | Henderson County | 4 |
| 76 | Jackson County | 4 |
| 76 | Warren County | 4 |
| 79 | Edgar County | 3 |
| 79 | Fayette County | 3 |
| 79 | Marshall County | 3 |
| 79 | Pulaski County | 3 |
| 83 | Cass County | 2 |
| 83 | Clay County | 2 |
| 83 | Greene County | 2 |
| 86 | Hancock County | 1 |
| 86 | Knox County | 1 |
| 86 | McDonough County | 1 |
| 86 | Pope County | 1 |
| 86 | Stark County | 1 |
| 86 | Wayne County | 1 |
| 86 | White County | 1 |
| 93 | Alexander County | 0 |
| 93 | Cumberland County | 0 |
| 93 | Hardin County | 0 |
| 93 | Johnson County | 0 |
| 93 | Saline County | 0 |
| 93 | Schuyler County | 0 |