Below is a list of local trick-or-treat times:

Butler — 6 to 7 p.m. Sunday, Oct. 31. Rain date 6 to 7 p.m. Nov. 1.

Adams — 6 to 8 p.m. Sunday, Oct. 31Allegheny — took place Thursday, Oct. 28Brady — 6 to 8 p.m. Sunday, Oct. 31Buffalo — 6 to 8 p.m. Sunday, Oct. 31Butler — 6 to 7 p.m. Sunday, Oct. 31.Cherry — 5:30 to 7 p.m. Sunday, Oct. 31Clay — 6 to 7:30 p.m. Saturday, Oct. 30Clearfield — 6 to 7 p.m. Sunday, Oct. 31Clinton — 6 to 8 p.m. Sunday, Oct. 31Concord — 6 to 7 p.m. Saturday, Oct. 30Connoquenessing — 6 to 7 p.m. Saturday, Oct. 30Cranberry — 6 to 8 p.m. Sunday, Oct. 31Donegal — 6 to 7 p.m. Sunday, Oct. 31Franklin — 6 to 7:30 p.m. Sunday, Oct. 31Jackson — 6 to 8 p.m. Saturday, Oct. 30Jefferson — 6 to 8 p.m. Sunday, Oct. 31Lancaster — 6 to 8 p.m. Saturday, Oct. 30Mercer — 4 to 6 p.m. Saturday, Oct. 30Middlesex — 6 to 8 Sunday, Oct. 31Muddy Creek — 5 to 6:30 p.m. Sunday, Oct. 31Oakland — 6 to 8 p.m. Saturday, Oct. 30Parker — 6 to 7 p.m. Sunday, Oct. 31Penn — 6 to 7:30 p.m. Sunday, Oct. 31Slippery Rock — 6 to 8 p.m. Saturday, Oct. 30Summit — 6 to 8 p.m. Sunday, Oct. 31Washington — 6 to 7 p.m. Saturday, Oct. 30Winfield — 6 to 8 p.m. Sunday, Oct. 31Worth — 6 to 9 p.m. Saturday, Oct. 30

Bruin — 6 to 7 p.m. Sunday, Oct. 31Callery — 6 to 7 p.m. Saturday, Oct. 30Cherry Valley — 2 to 4 p.m. Sunday, Oct. 31Chicora — 6 to 7 p.m. Sunday, Oct. 31Connoquenessing — 6 to 7 p.m. Saturday, Oct. 30Eau Claire — 2 to 4 p.m. Sunday, Oct. 31Harmony — 6 to 8 p.m. Saturday, Oct. 30Harrisville — 4 to 6 p.m. Saturday, Oct. 30Karns City — 6 to 7 p.m. Sunday, Oct. 31Mars — Trick or treat, 6 to 8 p.m. Sunday, Oct. 31Petrolia — 6 to 7 p.m. Sunday, Oct. 31Portersville — 5 to 6:30 p.m. Sunday, Oct. 31Prospect — 6 to 7:30 p.m. Sunday, Oct. 31Saxonburg — 6 to 8 p.m. Sunday, Oct. 31Seven Fields — 5 to 7 p.m. Sunday, Oct. 31Slippery Rock — Parade from 6 to 7 p.m. Saturday, Oct. 30, on Main Street. Trick or treat from 6 to 8 p.m.Valencia — 6 to 7:30 p.m. Saturday, Oct. 30West Liberty — 6:30 to 8:30 p.m. Sunday, Oct. 31West Sunbury — 5 to 6 p.m. Sunday, Oct. 31Zelienople — 6 to 8 p.m. Saturday, Oct. 30

Preston Park will have trick or treat from 6 to 7:30 p.m. Friday, Oct. 29, at the park, 415 S. Eberhart Road, sponsored by the Butler Chamber of Commerce. More than 20 vendors will be handing out candy.A Halloween party with costume contest will be from 6 to 8 p.m. Saturday, Oct. 30, on Grand Avenue in Mars. The event is free to children in costume.A free tour of The Haunted Whippo Asylum, 106 Whippo Ave., is set from 6:30 to 9:30 p.m. Sunday, Oct. 31. This is a yearly Halloween maze organized by the Wetzel family.