51+ Halloween Happenings On The Cheap For Kids & Adults

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 2025 (FREE to the best of our knowledge, unless indicated otherwise).

If there are any we’ve missed, email us the details at info@milehighonthecheap.com and we’ll do our best to get them added to the list.

If you need ideas on ways to save, check out 15 Ways to Celebrate Halloween Without Spending a Scary Amount of Money.

In addition to the activities we’ve published here, visit our Haunted Houses page for ongoing scary homes of horror and other Halloween-iana through Thursday night, October 31.

Events are sorted by date and then by start time.

Halloween Events For 2025

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.

Saturday, October 11, 2025

Trick or Treat at Mile High Flea Market, Henderson

9 a.m. to 3 p.m. Kids encouraged to dress up and trick-or-treat at vendors throughout the market. Face painter, balloon artist and fun activities. Free candy. Rocky Mountain Pro Wrestling provides extra entertainment. 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.

Sunday, October 12, 2025

Spooky Streets Stroll at The Orchard, Westminster

11 a.m. to 2 p.m. Trick or treat through the complex. Participating stores with candy will have a balloon at their entrance. Plus, free face painting, games and entertainment. Don’t miss the pumpkin patch, where for a $5 to $7 donation benefiting Food for Hope, kids can pick and decorate their own pumpkins. Also check out the magical treasures at FirstHand’s creepy-cool Macabre Market. 14697 Delaware St., Westminster.

Monday, October 13, 2025

Glendale Halloween Trunk or Treat & Movie Night at Infinity Park

4:30 p.m. At Festival Plaza in Infinity Park. Trunk or Treat starting at 4:30 p.m. features  games, costume contest and candy! Starting at 6 p.m., enjoy the movie Monsters, Inc. Don’t forget to bring a picnic blanket and chairs. Food trucks onsite. Parking in the P1 parking lot. at the NE corner of Kentucky Ave. & Cherry St., Glendale.

Tuesday, October 14, 2025

Boulder County Trunk or Treat

4 p.m. to 7 p.m. At Boulder County Sheriff’s Office. This isn’t your average candy grab — meet real K9 heroes, explore the inside of massive fire trucks, and police cruisers, and get up close with cool tech like robots and buzzing drones. Dig for treat treasure in their very own Jurassic archaeological site.

Costumes encouraged! Candy and non-food treats available. Enjoy this secure space for families to have a good time together.

Entrance registration is offered in 15-minute increments. A timed registration is required for entry. Be sure to arrive based upon your registered time. Register here. 5600 Flatirons Pkwy., Boulder.

Friday, October 17, 2025

Stoney’s Uptown 8th Annual Pumpkin Carve, Denver

7 p.m. to 10 p.m. Head to the famed bar and grab a seat, a pumpkin, a carving kit and a pumpkin beer and get ready to create while spooky movies play. $14.64 ($12 ticket + fee) covers one kit, and can include however many people you want in your party. Reservations required. 1035 E. 17th Ave., Denver.

Saturday, October 18, 2025

Treat Street at Arapahoe County Scaregrounds

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, pumpkin painting, live entertainment, costume contest, adult beer garden (21+), local food trucks and more.

Presale tickets are $10 per person. Day of event online or the door is $12. Children 2 and under get in free. Buy tickets here. 25690 E. Quincy Ave., Aurora.

Aspen Grove Monster Bash, Littleton

12 p.m. to 3 p.m. Trick or treating at participating stores. Party at the BARBOX at Aspen Grove. Explore 100 local makers at Mystikal Makers Market. Food and drink available for purchase. RSVP for the event here. 7301 S. Santa Fe Dr., Littleton.

Castle Rock Spooktacular

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. Philip S. Miller Park, 1375 W. Plum Creek Pkwy., Castle Rock.

Northglenn Christian Church Trunk or Treat

1 p.m. to 3 p.m. Dress up in your best costume and visit creatively decorated car trunks to collect yummy treats. 1800 E. 105th Pl., Northglenn.

Trunk or Treat On Mainstreet, Parker

2 p.m. to 5 p.m. Trick or Treat on Mainstreet with candy, goodies and Halloween fun including music, entertainment and more. (Special Sensory Sensitive Trick or Treat Hour from 1 p.m. to 2 p.m.) Event is FREE, but kids MUST register as there is limited ticket entry and a timed entry to ensure this event is enjoyable for everyone. Ticketing opens on October 1, 2025. Go here to find the sign up form. Starts behind Parker Station (in the parking lot) at 19751 Mainstreet, Parker.

Englewood Trunk or Treat Express

3 p.m. to 6 p.m. Held at Belleview Park’s Farm & Train (new location for 2025). Family-friendly haunted train ride, interactive activities and plenty of candy for kids. Costumes are encouraged for all ages. Tickets $5 per family (up to 5 members). On sale Sept. 22. Get tickets here. 5001 S. Inca Dr., Englewood.

Northglenn Safe Street Halloween

4 p.m. to 7 p.m. A literal street of trick-or-treat fun outdoors on Kennedy Drive along Centennial Park. There will be stops provided by Northglenn High School student groups, spooky inflatables, music and trunk-or-treat cars from area businesses. Fun for all boys and ghouls.

Sponsored by the Northglenn Police Dept. Plan time to park and walk to the event. Centennial Park, 275 Kennedy Dr. (north of the Northglenn Marketplace at 104th Ave. & I-25).

Haunted Trail Adventure at Bear Creek Lake Park, Lakewood

4 p.m. to 7 p.m. Walk along the Owl Trail and discover the critters of the night. This family-friendly event will explore the misunderstood and sometimes spooky animals that call the park home. Wicked fun carnival games (included in admission), campfire with marshmallow roast and photo booth. Admission: $5 per person, kids 3 and under FREE. You MUST register in advance. Walk-ins NOT permitted. Register online here. 15600 W. Morrison Rd., Lakewood.

Thornton Trunk or Treat

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 drinks and snacks. Admission: $5 per person, $15 per family of 4.

NOTE: Due to the popularity of this event, the admission line will be cut off and the parking lot will be closed prior to the end of the event in order to adhere to the 9 p.m. closing time. Carpenter Park Fields parking lots, 108th Ave., & Colorado Blvd.

Sunday, October 19, 2025

Treat Street at Arapahoe County Scaregrounds

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, pumpkin painting, live entertainment, costume contest, adult beer garden (21+), local food trucks and more.

Presale tickets are $10 per person. Day of event online or the door is $12. Children 2 and under get in free. Buy tickets here. 25690 E. Quincy Ave., Aurora.

Hilltop Halloween Festival, Denver

2 p.m. to 5 p.m. Costume encouraged, trick-or-treat stations, live entertainment and ghoulish games, food trucks & festive drinks and pumpkin patch photo ops. Robinson Park, Denver.

Friday, October 24, 2025

Fangtastic Festival, Castle Rock

Noon to 3 p.m. Costumes, candy, booth-to-booth trick or treating, face painter, balloon artist, food trucks and more at Festival Park, 300 2nd. St., Castle Rock.

Spooky Streets at SouthGlenn, Centennial

4:30 p.m. to 7:30 p.m. Safe, fun for kids and families in Commons Park. Spooky characters, balloon artists, kids entertainment, music and dancing. NOTE: This is NOT a trick-or-treating event, but rather a celebration of the season. 6851 S. Gaylord St., Centennial.

Firestone Halloween Safe Night, Firestone

5 p.m. to 8 p.m. Firestone Police Department offers a safe alternative to trick-or-treating. This event offers a trunk-or-treat, inflatables, obstacle course, a trackless train for wild rides, safety handouts, food trucks, a goody bag for attendees and more. Firestone Regional Sports Complex, 6850 Tilbury Ave., Firestone.

BOO-rific Bash & Splash, Littleton

6 p.m. to 8 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 in advance or pay at the door. 6613 S. Ward St., Littleton.

Saturday, October 25, 2025

Longmont Halloween Parade & Trick or Treat Street

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.

Fall-O-Ween, Aurora

10 a.m. to 3 p.m. Southlands celebrates with a Trick or Treat Trail, the Fall Festival & Pumpkin Patch, plus Howl-O-Ween Dog Costume Contest benefiting the Aurora Police Foundation. 6155 S. Main St., Aurora.

Fall Into Fun, Aurora

11 a.m. to 4 p.m. The City of Aurora expands its fall fest at the Aurora Municipal Center with live entertainment, food trucks, a pumpkin patch with pumpkin decorating kits, petting farm, craft vendors, hay-bale maze, train rides, inflatable axe-throwing, and new for 2025 — a trunk or treat. 15151 E. Alameda Pkwy., Aurora.

Trick or Treat On Havana Street, Aurora

11 a.m. to 1 p.m. 30+ shops at Gardens On Havana will hand out candy to trick-or-treaters. Halloween Costume Contest at the Aurora Police Dept. Substation (1250 S. Ironton St., #120, near the new VASA Fitness – formerly Dick’s Sporting Goods). Come in your Halloween costume & take a photo at to enter the contest. Categories include Adult, Child, Group and Pet. Gift cards from the On Havana Street shops awarded to the winners. 10551 E. Garden Dr. Aurora.

Boo-Mar, Lakewood

12 p.m. to 3 p.m. Belmar shopping district hosts FREE trick or treating and fun activities for all ages. Costume parade starts at 12:30 p.m. Trick-or-Treat Street goes from 1 p.m. to 3 p.m. Halloween activities are in the Plaza and include crafts, DJ, dancing and food trucks. 7337 W. Alaska Dr., Lakewood.

Mines Museum Spooktacular, Golden

2 to 5:30 p.m. A teal pumpkin trick-or-treat event. Come in costume, enjoy STEM themed hands-on activities (and treats), win prizes, and take pictures with Ms. Colorado herself. Also Mr. Bones, face painting, geode cracking, Blaster the burro and spooky exhibits. 1310 Maple St., Golden.

Littleton Church of Christ Trunk or Treat, Centennial

3 p.m. to 5 p.m. Candy, face painting, bounce houses, balloon art, hay rides, pumpkin patch, food at food trucks for purchase and much more. RSVP required! 6495 S Colorado Blvd, Centennial.

Boo! on Briggs, Erie

3 p.m. to 6 p.m. Erie becomes eerie when costumed celebrants fill Coal Creek Park. The FREE fun includes candy, music and more. 575 Kattell St., Erie.

Lyons Halloween Spooktacular

4 p.m. to 7 p.m. Community celebration and costume parade through downtown Lyons. Games at Lyons Elementary School from 4 p.m. to 5:30 p.m. Parade down Main Street at 6 p.m. followed by trick or treating at local downtown businesses. Chili Cook-off at 4:30 pm at Main Stage Brewing, brought to you by the Lyons Garden Club.

Trunk or Treat at Peak Martial Arts, Thornton

4 p.m. to 7 p.m. Open to all. Free entry. Includes a walk-through the Trunk-or-Treat lot (tons of candy!), haunted bus, carnival games, and a spooky movie. Concessions including hot dogs, nachos, baked goods, hot chocolate and hot apple cider available for purchase ($1 to $5). Costumes welcome. Bring a bag or bucket to hold candy. All participants must register! 12421 Washington St., Thornton.

Trunk or Treat AND Trick or Treat Street at Grace Presbyterian Church, Littleton

3 p.m. to 5 p.m. Explore creatively decorated car trunks filled with candy and surprises. Then, stroll down a spooky street inside the church and collect treats and games from various stations. Dig through our haunted hay patch for pumpkins and prizes. Enjoy Halloween-themed games and crafts for all ages. Prizes for the best costumes. 7900 Hope Pl., Littleton.

Halloween Monster Mash Party, Superior

5 p.m. to 8 p.m. Come in costume and enjoy food, prizes, music and games. Superior Community Center, 1500 Coalton Rd., Superior.

Broadway Halloween Parade, Denver

6 p.m. to 8 p.m. Features 70+ spooky floats handing out candy, bands, dancers, marchers and more traveling down Broadway from 5th Ave. to Alameda Ave. Join in the fun by wearing your favorite Halloween costume (your pooches, too). 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.

Halloween Silent Disco, Louisville

8:30 p.m. to 11 p.m. Dance the night away to spooky music while also wearing a killer costume at this annual event at The Louisville Underground. Headphones (three music channels) can be checked out when you get there. Tickets: $21. Buy them here. 640 Main St., Louisville.

Sunday, October 26, 2025

Halloween Pop Up, Lakewood

11 a.m. to 5 p.m. Family-friendly event with 50+ vendors and sweet treats, hosted by A Dash of Enchantment. Rockley’s Event Center, 8555 W. Colfax Ave., Lakewood.

Growl-o-ween, Denver

Noon to 6 p.m. Hosted by Three Dog Bakery. This event is trick-or-treating around the LoHi neighborhood for your DOG! There will be treats for the pups and their humans. A costume contest, plus special treats and goodies will be available at the Bakery.

Tickets sold one per participating dog: $15 for General Admission registration. $25 for VIP tickets which include one BYO ice cream sundae, goodie bag, special treats and a designated check-in area. Costume Contest categories include small dog, medium dog, large dog, and group costume. 1503 Boulder St., Denver.

Halloween on the Promenade, Loveland

12 p.m. to 3 p.m. A free, family fun event, offering costume contest and safe trick-or-treating at participating vendor booths and stores at the Promenade Shops at Centerra. Costume contests — with prizes — for both kids and pets, face painting, balloon artist, giant bubble machine, live DJ, special appearance from NoCo Ghostbusters and a pumpkin patch. Free pumpkin for kids provided by Bartels Farm. 5971 Sky Pond Dr., Loveland.

Howl-a-Ween Pet Parade at Union Station, Denver

12 p.m. to 3 p.m. Unleash your favorite superhero, ladybug or princess costume for your four-legged friend. Pet parade and costume contest held outdoors on the Terminal Bar patio.

Harvest Festival & Trick or Treat Street at Highland Square, Denver

2 p.m. to 5 p.m. Free community event held along 32nd Ave. from Perry to Lowell. Costume contest, pumpkin patch, jump castle, performance from a local acoustic band, a beer garden, kid’s games, and, of course, Trick or Treating at neighborhood businesses along 32nd Avenue.

Trick or Treat at Stanley Marketplace, Aurora

5 p.m. to 7 p.m. Kids can trick-or-treat throughout the marketplace and collect candy from participating shops and restaurants. Costume Contest at Stanley Beer Hall with prizes for best costumes. 2501 N. Dallas St., Aurora.

Thursday, October 30, 2025

Bones Cinema Trick or Treat Trail, Lakewood

4 p.m. to 8 p.m. Safe, fun and slightly spooky place for kiddos. Collect candy from 20+ spooky stations. Fresh popcorn & yummy concessions. Sip on spooky (kid-friendly) drinks. Wear your costumes and join the fun. 8555 W Colfax Ave Lakewood.

Denver BOOnion Station Trick or Treat Parade

4:30 p.m. to 7:30 p.m. Trick-or-treating in Union Station’s merchant shops, a costume parade, mini-train rides, balloon artists and face painters. The Parade will begin at 5 p.m. and march around Wynkoop Plaza in front of Denver Union Station and inside through the Great Hall. Prizes awarded for first, second and third place overall costumes.

Mile High Trunk or Treat at Empower Field, Denver

5 p.m. to 9 p.m. HUGE event at Empower Field (Parking Lot C) hosted by Far East Center and Denver Police Department. Music, games, food, inflatable haunted maze, dancing, pumpkin decorating stations and entertainment for all ages. Explore decorated trunks full of candy, and come dressed in your best costume for a chance to win prizes for the top three best-dressed. Movie screening, too. Parking is in Lots B & D.

Friday, October 31, 2025

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. Best for ages 12 and under.

Halloween Walk in Downtown Evergreen

4 p.m. to 6 p.m. Superheroes, Disney characters, dinosaurs and witches take to main street during the Downtown Evergreen Halloween Walk. Merchants open their stores to welcome costumed kids with a sweet treat or two. This is a fun, relaxing late-afternoon event which leaves plenty of time for trick-or-treaters to make a few more stops before they turn into “pumpkins.”

Leftoween at Left Hand Brewing, Longmont

5 p.m. to 9:30 p.m. Costumes encouraged. Live Music with Crick Wooder. Delicious brews and food trucks. Specially concocted Hot Whiskey Ciders. Feel free to bring chairs and blankets to enjoy the show on the lawn. Held in the Garden. 1245 Boston Ave., Longmont.

“Stranger Strings” Halloween Party at New Terrain Brewing, Golden

6 p.m. to 10 p.m. Live music from Foggy Mountain Spaceship. Costume Contest with prizes around 7:15 p.m. Prizes are New terrain gift cards. Cilantro & Perejil and Fanwich food trucks on site. 16401 Table Mountain Pkwy., Golden.

Halloween Costume Party at Vanishing West Ciders, Aurora

6 p.m. to 9 p.m. Costume contest with prizes. Festive drinks. A soundtrack of spooky beats. Held in the Taproom. 9735 East Colfax Ave., Aurora.

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.

Beer Garden Blockbusters at Breckenridge Brewery, Littleton

7 p.m. Spine-tingling (and side-splitting) outdoor screening of Shaun of the Dead. Beer & food specials all night. Costumes encouraged. 2990 Brewery Lane, Littleton.

Hallows Scream Punk Show at Ratio Beerworks (Overland), Denver

8 p.m. to 11:30 p.m. Performers: Spit Hood, Rat Napkins, Toxic Authority and Worth The Weight (Headliner). Costume contest at 10:30 p.m. Admission: $10. 2030 S. Cherokee St., Denver.