Prior to Halloween on Oct. 31, the following Halloween celebrations are taking place around St. Lawrence County.

Saturday, Oct. 21

1.5-MILE, FAMILY HALLOWEEN RUN FUNDRAISER, 10 a.m., starting at the Red Barn, 10 Raymond St., Potsdam, and covering a portion of the Munter Trails; benefits North Country Children’s Museum; runners encouraged to dress in costume; prizes awarded; cost: $10 individual, $38 for family/group; games, snacks.

DISNEY HALLOWEEN SHOW, Massena VFW, East Hatfield St.; doors 1:15 p.m., show 2 p.m.; hosted by Amber Skyy & special guest performers; prizes, 50/50 to benefit Massena cheerleaders; admission $3/kids, $5/adults, $20/VIP table; more info, tables: message Amber Skyy on Facebook or 315-842-2463.

HALLOWEEN HAUNT, 70,000 square-foot haunted house inside old Sears at St. Lawrence Centre, Massena; toned down version for kids 5-6 p.m.; full experience 6-10 p.m., kids welcome at parents’ discretion; $3/age 12 & under, $5/everyone else, proceeds to Massena Boys & Girls Club.

Sunday, Oct. 22

HALLOWEEN PARTY, 11 a.m.-2 p.m., Nicholville Volunteer Fire Department Recreation Committee, at the fire station, 3341 State Highway 11B; musical chairs, costume judging, fire safety trailer, firetruck rides, hay rides (weather pending), games and prizes, food and snacks, music and crafts; info: 315-296-6224, chelseyfurnace@gmail.com.

KIDS HALLOWEEN PARTY, 1-3 p.m., at the Norwood American Legion; first 100 kids will receive a gift bag; music, balloons, crafts, coloring and a buffet of "groolin" goodies; costume judging will be held at 2 p.m.

Thursday, Oct. 26

FRIGHT NIGHT, 5:30-8 p.m., downtown Potsdam, on Market Street between Main and Elm streets, will be blocked off; cupcake walk, pumpkin patch, haunted skit, dance performance, giveaways, candy, treats, carnival style games, haunted alley, live music, fire truck demo; hosted by Potsdam Chamber of Commerce.

‘KREEPY HOLLOW,’ St. John’s Conservatory Theater, OFA Auditorium, Ogdensburg; October 26, 27, 28 at 7 p.m. and October 28, 29 at 2 p.m.; tickets: $15 at the door, $10 at brownpapertickets.com.

Friday, Oct. 27

SWEET REVENGE TO PERFORM, adult Halloween party, Barking Dog Saloon, 495 W. Parishville Rd., Potsdam; info: www.barkingdogsaloon.com.

HALLOWEEN HAUNT, 70,000 square-foot haunted house inside old Sears at St. Lawrence Centre, Massena; toned down version for kids 5-6 p.m.; full experience 6-10 p.m., kids welcome at parents’ discretion; $3/age 12 & under, $5/everyone else, proceeds to Massena Boys & Girls Club.

REMINGTON HAUNTING, 6-8 p.m., Frederic Remington Art Museum, 303 Washington St., Ogdensburg; admission: $5; info: 315-393-2425, melanie@fredericremington.org.

CIRCUS OF HORRORS, 7 p.m.-midnight, Clarkson Hall, 59 Main St., Potsdam; proceeds will help fund Clarkson physician assistant students mission trip to Nicaragua; admission: $12; younger than 18 must be accompanied by adult; info: www.facebook.com/potsdamhauntedinfirmary/.

HALLOWEEN PARTY, 8 p.m.-midnight, Langbrook Meadows, Brier Hill; costume judging 11 p.m.; picture ID required; DJ, snacks.

MADRID HALLOWEEN PARTY, 6-8 p.m., Hepburn Library community room, Madrid; games, prizes, crafts, food, costume contests; open to all ages; info: 315-322-5673.

‘KREEPY HOLLOW,’ St. John’s Conservatory Theater, OFA Auditorium, Ogdensburg; October 26, 27, 28 at 7 p.m. and October 28, 29 at 2 p.m.; tickets: $15 at the door, $10 at brownpapertickets.com.

Saturday, Oct. 28

TRUNK OR TREAT, 6-8 p.m., Riverview Restaurant Parking Lot, 928 State Highway 11C, Brasher Falls; community members can decorate their trunks or truck beds and hand out candy; must provide own treats, no homemade treats; prizes for best decorated trunk; info: 315-261-0842.

PHANTOMS IN THE PARK, starting at 1 p.m., in Canton Village Park, hosted by Canton Chamber of Commerce, SUNY Canton and SLU; costume contest, trick or treat parade, games.

HALLOWEEN HAUNT, 70,000 square-foot haunted house inside old Sears at St. Lawrence Centre, Massena; toned down version for kids 5-6 p.m.; full experience 6-10 p.m., kids welcome at parents’ discretion; $3/age 12 & under, $5/everyone else, proceeds to Massena Boys & Girls Club.

HALLOWEEN PHOTO SHOOT, 10 a.m.-4 p.m., The Gallery, 10 Main St., Waddington; for kids, dogs and families, with a spooky background; limited appointments available, call 315-869-3895.

ADULTS HALLOWEEN PARTY, 8 p.m.-midnight, hosted by Ogdensburg Moose Lodge 814 and Women Of The Moose Chapter 199, 609 Pickering St.; music entertainment and costume judging; info: 315-393-3170.

HALLOWEEN WOODS WALK, 6:30-8:30 p.m., Nicandri Nature Center, 19 Robinson Bay Rd., Massena; info: massenanaturecenter.com.

REMINGTON HAUNTING, 6-8 p.m., Frederic Remington Art Museum, 303 Washington St., Ogdensburg; admission: $5; info: 315-393-2425, melanie@fredericremington.org.

CIRCUS OF HORRORS, 7 p.m.-midnight, Clarkson Hall, 59 Main St., Potsdam; proceeds will help fund Clarkson physician assistant students mission trip to Nicaragua; admission: $12; younger than 18 must be accompanied by adult; info: www.facebook.com/potsdamhauntedinfirmary/.

TRUNK OR TREAT, 5-8 p.m., Church Of The Nazarene, 11 State Highway 72, Potsdam; for children of all ages; info: 315-265-2198, pcn@potsdam-naz.org.

HALLOWEEN PARTY, 3 p.m., Ogdensburg Public Library; for children of all ages, games, candy.

EDWARDS LIONS CLUB TRICK-OR-TREATING, 9-11 a.m., collecting money for the Edwards Food Pantry.

HALLOWEEN PARTY, Parishville Amvets Post 265; 7 p.m.-?; prize for best costume; music by Wired for Sound (Dick Wickwire); bring dish to pass.

MONSTER MASH, HALLOWEEN BASH, 7 p.m.-midnight; Ogdensburg Elk’s Lodge 772; music by Common Ground, snacks, prizes awarded for best costumes; $5 admission fee.

‘KREEPY HOLLOW,’ St. John’s Conservatory Theater, OFA Auditorium, Ogdensburg; October 26, 27, 28 at 7 p.m. and October 28, 29 at 2 p.m.; tickets: $15 at the door, $10 at brownpapertickets.com.

Sunday, Oct. 29

TRUNK OR TREAT, 2-4 p.m., Free Methodist Church, Dry Bridge Road across from Lobster House, Norwood; free, open to the public; trick-or-treating, games, snacks, face painting.

CHILDRENS HALLOWEEN PARTY, 1-3 p.m., hosted by Ogdensburg Moose Lodge 814 and Women Of The Moose Chapter 199, 609 Pickering St.; treats, games, and more; info: 315-393-3170.

‘KREEPY HOLLOW,’ St. John’s Conservatory Theater, OFA Auditorium, Ogdensburg; October 26, 27, 28 at 7 p.m. and October 28, 29 at 2 p.m.; tickets: $15 at the door, $10 at brownpapertickets.com.

Tuesday, Oct. 31

LOUISVILLE HALLOWEEN PARTY, 6-8 p.m., Louisville Fire Station, Route 37; sponsored by Louisville Lions Club; costume contests for all ages, games and prizes for children, bounce house, clown, bag of treats for each child; free to children and their families.