Last year's trunk-or-treat was on Friday, October 31, 2025, 5:30–8 p.m.. It was an organized event, not town-wide hours.
Source: ABC4 Utah, Oct. 30, 2025 · checked Sept. 25, 2026
Last year: Community trunk-or-treat in Harrisville Shopping Center lot (police department).
| Town | 2026 | Last year (2025) |
|---|---|---|
| Marriott-Slaterville | Not posted yet | Fri, Oct. 31, 4:30–6:30 p.m. (event) |
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