County or equivalent · 17163
St. Clair County, Illinois
Annual housing permits and reporting coverage
- Published estimate · 2025
- 463
- Reported only · 2025
- 463
- Added by estimation · 2025
- 0
Reported and estimated units by year
| Year and source | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| 2023 Census file | 540 | 493 | 47 |
| 2024 Census file | 740 | 738 | 2 |
| 2025 Census file | 463 | 463 | 0 |
2024 to 2025 · published estimate -277 units · reported only -275 · added by estimation -2. This split describes the difference between the published columns.
What types of housing were authorized?
| Units in building | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| One unit | 285 | 285 | 0 |
| Two units | 96 | 96 | 0 |
| Three or four units | 25 | 25 | 0 |
| Five or more units | 57 | 57 | 0 |
Local housing and rent context
| Measure | Estimate and margin |
|---|---|
| Housing units · Census table B25001 | 115,630 ± 82 |
| Median gross monthly rent · Census table B25064 | $1,090 ± $22 |
| Gross rent at least 30% of income · Census table B25070 | 47.7% ± 2.7 percentage points |
| Gross rent at least 50% of income | 25.6% ± 2.5 percentage points |
| Estimated households with a computed rent-to-income ratio | 29,660 |
The 2025 permit estimate amounts to 4 authorized units per 1,000 housing units in the ACS estimate. The numerator and denominator cover different periods.
The Vintage 2025 Census housing stock estimate changed from 116,712 in 2024 to 117,335 in 2025 (+623 units). This is a separate model-based inventory estimate.
Permit offices listed under this county code
Use the office pages for their own histories and source coverage notes.
- BellevillePermit office 17056500 · St. Clair County · 3 authorized units
- Cahokia HeightsPermit office 17113300 · St. Clair County · Latest year unavailable
- Caseyville villagePermit office 17130600 · St. Clair County · 27 authorized units
- Dupo villagePermit office 17220000 · St. Clair County · 1 authorized units
- East Carondelet villagePermit office 17225100 · St. Clair County · 0 authorized units
- East St. LouisPermit office 17230200 · St. Clair County · 59 authorized units
- Fairview HeightsPermit office 17261100 · St. Clair County · 12 authorized units
- Fayetteville villagePermit office 17266500 · St. Clair County · 1 authorized units
- Freeburg villagePermit office 17285700 · St. Clair County · 4 authorized units
- LebanonPermit office 17427000 · St. Clair County · 2 authorized units
- Marissa villagePermit office 17477100 · St. Clair County · 0 authorized units
- MascoutahPermit office 17483100 · St. Clair County · 24 authorized units
- Millstadt villagePermit office 17509200 · St. Clair County · 7 authorized units
- New Athens villagePermit office 17545800 · St. Clair County · 2 authorized units
- O'FallonPermit office 17569800 · St. Clair County · 200 authorized units
- Sauget villagePermit office 17703600 · St. Clair County · 0 authorized units
- Shiloh villagePermit office 17722800 · St. Clair County · 30 authorized units
- Smithton villagePermit office 17730300 · St. Clair County · 4 authorized units
- St. Clair County Part Unincorporated AreaPermit office 17749800 · St. Clair County · 61 authorized units
- St. Libory villagePermit office 17753100 · St. Clair County · 0 authorized units
- Summerfield villagePermit office 17770500 · St. Clair County · 1 authorized units
- Swansea villagePermit office 17773800 · St. Clair County · 25 authorized units
- Washington Park villagePermit office 17825100 · St. Clair County · 0 authorized units
Sources and definitions
How to read these figures
- The Census Building Permits Survey counts new privately owned housing units authorized by permits. One permit can cover multiple units. The counts describe authorizations, a stage before starts and completions.
- The published estimate includes reported units and Census estimates that fill gaps. The difference is calculated from those two columns. Reported-only units can include records from approved alternative sources. A missing report can leave an office without a usable count.
- County and state totals come from their own Census files. Permit offices can cover places across county lines or areas served by another jurisdiction. The office’s county field is used for navigation.
- ACS housing inventory and rents are survey estimates for 2020–2024. Gross rent includes rent and separately paid utilities or fuels. Rent burden is the share paying at least 30% of income among cash-rent households with a computed ratio. Margins are at 90% confidence. The margin for rent burden is approximate.
- Vintage 2025 county housing stock is a separate Census series. Its model uses building-permit data alongside other inputs. Read stock change and permits as separate measures.
Public sources retrieved November 10, 2026. Building Permits Survey annual data · Survey methodology · American Community Survey data · Download the comparison