Mile High Cheapskates love this time of the year. The ghouls, ghosts, zombies and witches are flying about the beautiful Colorado skies. Denver, Boulder and all points in between offer an abundance of Halloween activities for kids and adults. You don’t have to wait until October 31 for all the free and low-cost fun, with dozens of happenings filling the days and nights before All Hallow’s Eve.
Check out our list below for what’s on for 2021. If there are any we’ve missed, email us the details at email@example.com and we’ll do our best to get them added to the list.
If you need ideas on ways to save, check out 16 Ways to Celebrate Without Spending a Scary Amount of Money.
In addition to the activities we’ve published here (FREE to the best of our knowledge, unless indicated otherwise), visit our Haunted Houses page for ongoing scary homes of horror and other Halloween-iana through Sunday night, October 31.
Events are sorted by date and then by start time.
Halloween Events For 2021
To avoid any disappointed trick-or-treaters, we encourage you to click on individual event links for the latest information before heading out. Note: Some events require pre-registration or ticketing in advance. Events are FREE unless otherwise noted.
Tuesday, October 12
Stoney’s Pumpkin Carving, Denver
7 p.m. $10 gets you a pumpkin, carving tools and a seat. Pumpkin beers on tap and spooky movies and music playing. 1111 Lincoln St., Denver.
Pumpkin Carving at Halfpenny Brewing, Centennial
6 p.m. For $12 carve a pumpkin while enjoying scary movies and candy. Food truck on site. Best pumpkin wins a free pint. 5150 E. Arapahoe Rd., Centennial.
Saturday, October 16
Malloween at The Orchard, Westminster
11 a.m. to 2 p.m. Start at Orchard Town Center Drive to pick up a goodie bag. Trick or treat through the complex. Participating stores with candy will have a balloon at their entrance. Costume parade, face and arm painting, Halloween games, prizes and dance to family-friendly Halloween music. Canned good donation requested to support Food for Hope. 14697 Delaware St., Westminster.
Trick or Treat at Mile High Flea Market, Henderson
11 a.m. to 2 p.m. Kids and adults encouraged to dress up. Costume contest at 2 p.m., face painter, balloon artist, Halloween games, and fun activities. Admission: $3 per adult, kids under 12 FREE. The Market itself is open from 7 a.m. to 5 p.m. 7007 E. 88th Ave. (I-76 & 88th), Henderson.
Wednesday, October 20
4:30 p.m. to 6:30 p.m. Rescheduled from Oct. 14. Kids trick or treat from vehicle to vehicle in the P1 parking lot. at the NE corner of Kentucky Ave. & Cherry St., Glendale.
Friday, October 22
Spooky Streets at SouthGlenn, Centennial
4:30 p.m. to 7:30 p.m. Safe, fun for kids and families in Commons Park. Candy stations, costume parade, spooky characters, balloon artists, music and dancing. Bring a can of food for Food Bank of the Rockies and receive a free treat bag, while supplies last. Please note this is not a trick-or-treating event, but rather a celebration of the season. 6851 S. Gaylord St., Centennial.
McGregor Scare, Denver
7 p.m. Music, photo booth, Halloween-themed games, Jack-o-Lantern cocktails. 1901 Wazee St., Denver.
Saturday, October 23
Broncos Trick-or-Treat, Denver
10 a.m. to 2 p.m. Empower Field at Mile High gets “tricked out” for a day of fun. Kids can experience the stadium like never before. Decorated spaces, an opportunity to safely trick-or-treat and plenty of activities to enjoy the Fall season. Costumes are encouraged. Tickets are $5 (everyone must have a ticket regardless of age) and include access to Broncos Trick-or-Treat and Miles Fall Fest. Buy tickets here.
10 a.m. to 3 p.m. Buy pumpkins for $3. Pick up a free bag of candy (one per child) at the Guest Services Desk (while supplies last) starting at 10 a.m. Craft and food market. 6155 S. Main St., Aurora.
10 a.m. to 2 p.m. Make your way through the businesses along Castle Pines Parkway and through the Village at Castle Pines. Just look for the pumpkin in front of the business and join in the fun. There will be a “Trunk or Treat” location located in the parking lot near the Castle Pines Douglas County Library.
11 a.m. to 4 p.m. A safe day of trick-or-treating and spooktacular family fun at the Arapahoe County Fairgrounds Event Center. Wear your favorite costume and head down Treat Street. Games and activities, petting farm, live entertainment, Thriller dance performance, costume contest, adult beverages, food trucks and more. Tickets are $5, but wear a costume for FREE entry. 25690 E. Quincy Ave., Aurora.
Noon to 2 p.m. Arm painting, balloon twisting, Goblin Train Rides, portrait stations, live entertainment, Trick-or-treat Bag giveaway (while supplies last). 5015 W. 120th Ave., Broomfield.
1 p.m. to 4 p.m. Activities include games, prizes, food, and of course, candy. This free event is held outdoors, so please dress warmly. The Miller Activity Complex, 1375 W. Plum Creek Pkwy., Castle Rock.
3 p.m. to 6 p.m. Held in the Englewood Civic Center Parking Structure (2nd level). Fun, games and treat bags for the kids. Costumes and masks encouraged. You need to register, but only one ticket required for your entire group/family. Register here.
4 p.m. to 7 p.m. Hair-raising event presented by Northglenn Police Dept. & Northglenn High School. Costume-clad youngsters and their families can first enter the “trunk or treat” area and then travel through the classrooms receiving candy, frights and delights along the way. Enjoy going through the haunted gym, the scary hallway and arachnophobia corner! Don’t worry — there’s plenty of not-so-scary fun for the young ones, with decorated classrooms, cookie decorating, contests and more surprises. Enter through doors on the SW corner of the building. Northglenn High School, 601 W. 100th Pl.
Boo! on Briggs, Erie
4 p.m. to 7 p.m. Erie becomes eerie when costumed celebrants fill Briggs St. downtown between Moffat and Wells. The FREE fun includes candy, music and costume contests (small fee for contest entry).
Trunk or Treat, Wheat Ridge
4 p.m. to 6 p.m. Fun and safe event for kids. Volunteers decorate the trunks of their cars and children “trick or treat” from car to car. Also parade and free games. Held at Stevens Elementary parking lot, 7101 W. 38th Ave.
McGregor Scare, Denver
5 p.m. Live band, pumpkin decorating, face painting, tarot card readers, showing of the movie “Coco” at 7 p.m. 1901 Wazee St., Denver.
Broadway Halloween Parade, Denver
6 p.m. to 8 p.m. Features spooky floats, bands and marchers traveling down Broadway from 5th Ave. to Alameda Ave. Join in the fun by wearing your favorite Halloween costume. At the end of the parade, all are asked to march in the street to bring the Halloween bash to a close. Viewing areas are available along the entire route on both the east and west sides of Broadway. Get there early to set up for a spook-tacular good time.
4 p.m. to 8:30 p.m. Bob Burger Recreation Center hosts two events in one. The Fall Festival includes pumpkin races, apple cider, candy, activities, an arts and crafts project, and STEM fun with pumpkins. Outside is a glow-in-the-dark nature walk with storytime and scarecrow and pumpkin decorating contests. Wrap up the evening with holiday-themed cartoons in the parking lot. Admission is $4 per person. Buy tickets here. The Great Pumpkin Race race participation requires pre-registration. 111 Baseline Rd., Lafayette.
6 p.m. to 9 p.m. Children spend the evening going from trunk to trunk, collecting candy from volunteers who have decorated their vehicles to serve as a backdrop for this spooktacular event. Be sure to stop by the Garden of the Ghouls haunted walk (best for ages 10+) for more Halloween thrills and chills. The Boo Bayou children’s area is perfect for the younger spooks.Food trucks on site selling hot drinks and finger foods. Admission: $3 per person, $10 per family of 4. Carpenter Park Fields parking lots, 108th Ave., & Colorado Blvd.
Sunday, October 24
McGregor Scare, Denver
5 p.m. Live band, pumpkin decorating, balloon artist, henna tattoos, showing of the movie “Monster House” at 7 p.m. 1901 Wazee St., Denver.
Wednesday, October 27
5 p.m. to 9 p.m. Denver Beer Co. hosts 4th Annual Howl-o-ween Doggie Costume Contest. Bring your favorite canine in costume for an evening of beer drinking and tricks and treats for doggies and humans. Gift cards awarded in categories: Best pup costume (solo), Best human (pup couples costume) and Best pup (pup couples costume). 1695 Platte St., Denver.
Thursday, October 28
5 p.m. to 8 p.m. Trick-or-treating in Union Station’s merchant shops, a costume parade, balloon/facepaint artists and costume contest with prizes for best overall costumes. The Parade will begin at 5:30 p.m. and march around Wynkoop Plaza in front of Denver Union Station and inside through the Great Hall.
5:30 p.m. to 9 p.m. Cider, snacks, photo booth action and a terrifyingly awesome costume contest.
Winner will win one case of cider a month for an entire year. RiNo Taproom, 2811 Walnut St., Unit 150, Denver.
Friday, October 29
Fangtastic Festival, Castle Rock
1 p.m. to 4 p.m. Costumes, candy, games and more at Festival Park, 300 2nd. St., Castle Rock. October 29.
Boos Cruise, Aurora
3 p.m. to 7 p.m. Don your best costume and head over to the Aurora Sports Park for a trunk load of spooky fun. You’ll drive through the park collecting treats from City of Aurora departments and local businesses. There will be costumed characters, music and the promise of a screaming good time! Register for $5 per car. You can register here. 19300 E. Colfax Ave., Aurora.
Trick or Treat Street, Golden
3:30 p.m. to 5:30 p.m. Kids are invited to come in costume to Downtown Golden and trick-or-treat at the many of the merchants.
Trunk or Treat at DPD District 3, Denver
4 p.m. to 6 p.m. Kids can join Denver Police Department officers and their costumed cars for a safe and fun trick-or-treat event. Festive spirits and candy treats. The station parking lot will be closed to traffic. 1625 S. University Blvd. (near I-25 & University), Denver.
BOO-rific Bash & Splash, Littleton
5 p.m. to 7 p.m. Indoor event at Ridge Recreation Center. Dress in full costume, trick-or-treat among community business tables and fun activities. Swimming is included (swimsuit required). Admission: $5 per child, adults FREE. Pay at the door. 6613 S. Ward St., Littleton.
5 p.m. to 8 p.m. Firestone P.D. offers a safe alternative to trick-or-treating. This outdoor event offers a trick-or-treat trail, obstacle courses and inflatables, a trackless train for fun rides, safety handouts, food trucks and more. Firestone Regional Sports Complex, 6850 Tilbury Ave.
Trick or Treat Street, Arvada
5 p.m. to 7 p.m. Kids in costume can trick or treat throughout Olde Town Arvada.
WOW! Children’s Museum, Lafayette
5:30 p.m. to 7:30 p.m. Come dressed in costume (don’t forget your masks!) and collect non-candy treats around the museum. Activities include games, slime to-go, build-a-monster craft, and more. Capacity is limited. Tickets: $11 per child; $7 per member child; $6 per adult. 110 N. Harrison Ave., Lafayette.
McGregor Scare, Denver
6 p.m. Costume contest, photo booth, Jack-o-Lantern cocktails. Silent disco (extra fee applies). 1901 Wazee St., Denver.
Saturday, October 30
Come in costume and line up starting at 9:45 a.m. at Roosevelt Park (700 Longs Peak Ave.) Parade starts at 10 a.m. and loops around Main St. (strollers and wagons recommended for small children). Trick-or-Treat Street by participating merchants begins after the parade.
10 a.m. to 2 p.m. Trick-or-treating at Old Town retailers and Cottonwood Square, magic show (10:15 a.m., 11 a.m., 12:30 p.m.) in Cottonwood Square, hayrides, petting zoo from 10:30 a.m. to 1:30 p.m. at Niwot Real Estate. Come in costume and line up at Niwot Liquor (2nd and Niwot) no later than 11:20 a.m. for the parade that starts at 11:30 a.m., followed by the always fun dog costume contest.
Halloween Loteria, Denver
10:30 a.m. to 11:30 a.m. Put on your Halloween costume and join in a Halloween-themed lotería! Win prizes, make your own mask, and enjoy sugar. Fun is all but guaranteed. Valdez-Perry Branch Library, 4690 Vine St., Denver.
11 a.m. to 3 p.m. Come dressed in your best costume and ready to collect all your favorite treats. This event will be trunk-or-treat style and feature candy and non-candy trunk-or-treating, beer garden, fall market, DJ, balloon twister and more. Additional activities inside the mall at Center Court. Held outside in the Food Court parking lot (between Dillards & JCPenney). No registration required, but if you go here, you can get Fast Pass tickets and skip the line!
Noon to 2 p.m. Trick or treat from car to car, plus carnival activities (games, bounce house, snow cones, etc.) and free BBQ. All are welcome, costumes are encouraged. 1072 Chambers Rd., Aurora.
Noon to 5 p.m. Green Valley Ranch Beer Garden parking lot hosts trick or treating, live entertainment, professional face painters, and a pumpkin patch. Afterwards, enjoy a fall fest in the beer garden with a annual pumpkin carving contest, drink specials and adult costume contest. 4995 Argonne St., Denver.
Boo & Brew on Colfax Avenue, Denver
FREE kid-friendly activities from 1 p.m. to 4 p.m. at 20+ businesses along E. Colfax from York to Colorado Blvd. Trick-or-treating, live music, pumpkin decorating and kids bicycle derby. Then, from 6 p.m. to 2 a.m. adults get in on the festivities. Crawl the Bluebird District all night long celebrating with food and drink specials and costume contests.
Check-in to get your map at either Route 40 (2550 E Colfax Ave.) or Annie’s Cafe (3100 E Colfax Ave.). Be one of the first 150 visitors and receive a Boo n’ Brew candy bag to stash your special treats.
Drop your kiddos off from 5 p.m. to 8 p.m. at Tiger Kim’s for some dinner and more Halloween fun for just $10 while you take advantage of all the Boo n’ Brew specials!
Spooky Village at Village at the Peaks, Longmont
1 p.m. to 3 p.m. Family festival with trick or treating at Village at the Peaks merchants. FREE activities include: hay rides, craft stations, face painting, balloon twisting, goblin train rides, portrait stations, caricature artists and live entertainment. 1250 S. Hover Rd., Longmont.
1 p.m. to 3 p.m. Rocket Fizz Aurora hosts a Halloween Costume Contest. First 50 customers that visit receive a FREE Mystery Bag of goodies sponsored by On Havana Street. Come in your Halloween costume, trick or treat at the store & take a photo at to enter the contest. Categories include Adult, Child, Group and Pet. Gift cards from the On Havana Street shops will be awarded to the winners. 10650 E. Garden Dr., Suite 102, Aurora.
Tennyson Street Fall Fest, Denver
1 p.m. to 5 p.m. At Cesar Chavez Park and along Tennyson Street between 41st and 43rd. Trick-or-treating for kids, local vendors and artisans and Pet Parade Costume Contest. General Admission ticket is $10 for adults, kids under 10 years old FREE and includes two (2) complimentary beverages (ages 21+ only) from local breweries. Entry fee for the Pet Costume Parade is an additional $5 per pet. Bring your furry friends in their most festive attire to compete for some amazing prizes. Buy tickets here. 4170 Tennyson St., Denver.
Trunk or Treat, Westminster
2 p.m. to 4 p.m. Wear your costumes at this free Trunk or Treat drive thru at St. Anthony North Hospital. Event entrance will be located via northbound Orchard Parkway. 14300 Orchard Pkwy., Westminster.
Heart of Five Points Halloween, Denver
3 p.m. to 6 p.m. Trick-or-treating up and down the Welton Street Corridor. Photo booth and live music at Cousins Plaza (2401 Welton St.). Participate in a Scavenger Hunt. Sign in at Urban Sanctuary (2745 Welton St.) for a list of clues. Prize includes a gift basket from local businesses.
3 p.m. to 6 p.m. Stop by and grab a pint or some to-go beer before you head off for your evening activities. Halloween costume contest between 3 p.m. and 6 p.m. in the taproom. Winner (chosen at 6 p.m.) gets a $50 CKBC gift card. 1338 S. Valentia St., Ste. 100, Denver.
3 p.m. to 8:30 p.m. A spook-tacular Halloween celebration at Heritage Lakewood Belmar Park with trick or treating through historic buildings (3 p.m. to 6:30 p.m.), a costume party for grown-ups (3 p.m. to 8:30 p.m.) and a classic Halloween movie under the moonlight at 7 p.m. Please make reservations so they can can for enough candy. 801 S. Yarrow St., Lakewood.
4 p.m. to 7 p.m. Games at Lyons Elementary School (4 p.m. to 5:30 p.m.), parade (6 p.m.) and trick or treat on Main Street (6:30 p.m. to 7 p.m.).
Trick or Treat at Bass Pro Shops & Cabela’s, Denver, Lone Tree, & Thornton
4 p.m. to 7 p.m. Costume parade starts at 4 p.m. Children will parade through the store where they can go to different trick-or-treat stations. Also games and crafts, plus everyone can judge which department has the best carved pumpkin. 7970 Northfield Blvd., Denver, 720-385-3600. 14050 Lincoln St., Thornton, 303-625-6100. 10670 Cabela Dr., Lone Tree, 303-625-9920.
4 p.m. to 10 p.m. “Out Of This World” theme-party. Release of a surprise brew. Rustic Nomad food truck. Costume contest with prizes. 884 S. Buckley Rd. Aurora.
McGregor Scare, Denver
5 p.m. Trick or Treat Street, costume contest, live band, pumpkin decorating, yard games, showing of the movie “Hocus Pocus” at 7 p.m. 1901 Wazee St., Denver.
Halloween at New Terrain Brewing, Golden
6 p.m. to 10 p.m. Costume contest with New Terrain gift card prizes, spooky beer releases and a dance floor to shake yer bones to with music from DJ White Pueo. 16401 Table Mountain Pkwy., Golden.
6 p.m. to 11 p.m. Costume contest with prizes, entertainment by DJ Rayrock. 4526 Tennyson St., Denver.
7 p.m. to 11 p.m. Costume contest with prizes. Food truck. Music by Sleazy Grease at 8 p.m. Must be 21+. 5535 W. 56th Ave., #107, Arvada.
Bender’s Bar & Grill Halloween Party, Westminster
7 p.m. to close. Drink specials. Costumes suggested, but not required. Costume Contest with lots of prizes. 10710 Westminster Blvd. (adjacent to the Ice Center), Westminster.
7:30 p.m. Dry Dock Brewing (North Dock) presents is site for a costume contest with prizes, live DJ, comedy from headline Zac Maas. General admission: $10. You may also reserve a table if you are wlling to pay a premium. 2801 Tower Rd., Aurora.
Zombie Prom at Union Station, Denver
8 p.m. to midnight. Adult zombies are invited to a frightfully fun night at Denver Union Station as our Zombie Prom event returns. Held in the Great Hall, Terminal Bar, and Cooper Lounge, this ticketed event will feature spooky cocktails and bites, a costume contest, killer beats, and more. Open to ages 21 and older.
8 p.m. to 2 a.m. Dance parties, DJs, live bands to costume contests… venture to a dozen amazing Halloween venues. Check-in at The Celtic on Market. Tickets include $10 in food & drink spend, access to all venues with no cover charge, food & drink specials and scavenger hunt for $1,000. Tickets: $14 for early admission (check in by 9 p.m.), $20 for general admission (check in by 10 p.m.), $18 per person for group of 4+. Get 20% off tickets (so they start at $11.20) by using this link.
Sunday, October 31
Halfpenny Brewing Taproom Trick or Treating, Centennial
11 a.m. Candy stations, free root beer for kids, beer specials for adults, costume contests for adults and kids with prizes. 5150 E. Arapahoe Rd., Unit D1-B, Centennial.
Whole Soloween, Denver
11 a.m. to 3 p.m. Whole Sol Sloan’s Lake hosts a party with pumpkin carvings (11 a.m. to noon), MELT Project box class (noon to 1 p.m.) and cookie decorating (2 p.m. to 3 p.m.). 1611 Raleigh St., Denver.
Spooktacular Halloween, Loveland
Noon to 3 p.m. The Promenade Shops at Centerra get into the Halloween spirit with games, prizes, a dog costume contest (1 p.m.), pumpkin patch, crafts, haunted house and more. Goody bags full of treats and fun take-home activities handed out to the first 1,000 kids dressed in costumes. Look for all the fun between Rock Bottom and Best Buy.
2 p.m. to 5 p.m. Zombie crawl at 2 p.m. followed by trick-or-treating at Stanley Marketplace businesses from 4 p.m. to 5 p.m. A Halloween-themed story time starts at 5 p.m. 2501 N. Dallas St., Aurora.
2:30 p.m. to 4 p.m. Held at Lone Tree Brewing Co., “Creatures of the Night” is a family-friendly dog costume contest with plenty of prizes. Sign up starts at 2:30 p.m., judging starts at 3 p.m. 8200 Park Meadows Dr., Ste. 8222, Lone Tree.
Munchkin Masquerade, Boulder
3 p.m. to 6 p.m. Trick-or-treating on Boulder’s Pearl Street Mall (11th to 15th Sts.) rain or shine. Tiny ghosts & goblins, fairies & wizards, super heroes and more trick or treat up and down the street.
Curtis Park “The Great Pumpkin”, Denver
3 p.m. to 6 p.m. Curtis Park hosts a family-friendly event with treats, circus performers, music and more. Look for the festivities at the Stout Street Children’s Park. 2501 Stout St., Denver.
3 p.m. to 6 p.m. The Lafayette Fire Department teams up with guests from the Lafayette Police Department for a family-friendly Halloween Safety Event. See and explore emergency vehicles, meet firefighters and police officers, play games, and receive free goodies. Held at the Lafayette Fire Station #1, 401 N. 111th St., Lafayette.
Ikea Trick or Treat Scavenger Hunt, Centennial
3 p.m. to 5 p.m. Trick or treat scavenger hunt. Come in costume and look for treats in every store department during this self-guided activity. Look for the check in table in the store entrance. No registration required. 9800 E. Ikea Way, Centennial.
Trick or Treat at Bass Pro Shops & Cabela’s, Denver, Lone Tree, & Thornton
3 p.m. to 5 p.m. Costume parade starts at 3 p.m. Children will parade through the store where they can go to different trick-or-treat stations. Also games and crafts, plus everyone can judge which department has the best carved pumpkin. 7970 Northfield Blvd., Denver, 720-385-3600. 14050 Lincoln St., Thornton, 303-625-6100. 10670 Cabela Dr., Lone Tree, 303-625-9920.
Two showings: 3 p.m. and 9 p.m. Screening of the hilarious full-length Halloween feature “Munster Go Home” featuring a Q&A with Butch Patrick aka Eddie Munster, with The Munster Koach on site. Costume contest and cash bar at the 9 p.m. showing. Tickets for 3 p.m. Family Matinee are $13.13 for adults, kids under 12 FREE. Buy tickets here. 9 p.m. Adults Only (18+) Showing tickets are $13.13. Buy tickets here.
4 p.m. to 5 p.m. Trunk or treating for children, plus Halloween games in the parking lot of Applewood Valley United Methodist Church. 2035 Ellis St., Golden.
4:30 p.m. to 6:30 p.m. Trick or treat in costume at businesses in downtown Evergreen.
Last Stop at The Highlands Ranch Mansion, Highlands Ranch
6:30 p.m. to 9 p.m. End your Halloween night at the Mansion and Historic Park. Ghouls and goblins of all ages are invited to this FREE outdoor-only event. Enjoy music, dancing, a trick-or-treat stop and cash bar. Note: Parking is limited. 9950 E. Gateway Dr., Highlands Ranch.