St. Clair County, IL — 2026 YTD
St. Clair County, IL indexed 137 development projects YTD in 2026 (through 2026-09-03). Commercial leads at 12% (16 projects). Fairview Heights is the most active city (39 projects), followed by Swansea (27).
Data through September 3, 2026 · Updated September 4, 2026 · America/Denver · Refreshed weekly
YTD Projects
137
Cities in County
7
County activity by period
| Period | Projects |
|---|---|
| Year to date (Jan 1 – Sep 3, 2026) | 137 |
| This week (Aug 31 – Sep 3, 2026) | 0 |
Projects by Type (YTD)
| Type | Projects |
|---|---|
| Commercial | 16 |
| Civic Actions | 8 |
| Industrial | 5 |
| Institutional/Public | 5 |
| Infrastructure | 4 |
Cities in St. Clair County
City-level counts for YTD 2026. Linked cities have enough distinct activity for a standalone page.
| City | YTD Projects | Top Type |
|---|---|---|
| Fairview Heights | 39 | Civic Actions |
| Swansea | 27 | — |
| Mascoutah | 18 | — |
| Belleville | 18 | Commercial |
| Columbia | 17 | — |
| Freeburg | 6 | Industrial |
| Marissa | 5 | Civic Actions |
Frequently asked questions
- How many development projects were indexed in St. Clair County, IL YTD 2026?
- 137 projects with indexed meeting dates year-to-date through 2026-09-03.
- Which cities in St. Clair County had the most development activity?
- Fairview Heights (39), Swansea (27), Mascoutah (18) lead the county by project count.