Last year Belleville held trick-or-treat on Friday, October 31, 2025, 5–8:30 p.m..
Source: Belleville News-Democrat, Oct. 29, 2025 · checked Sept. 25, 2026
Last year: City ordinance; eighth grade and younger only.
| Town | 2026 | Last year (2025) |
|---|---|---|
| Fairview Heights | Not posted yet | No official hours |
| O'Fallon | Not posted yet | Fri, Oct. 31, 6–9 p.m. |
| Shiloh | Not posted yet | Fri, Oct. 31, 6–9 p.m. |
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