Free events in Jefferson County, CO

Olde Town Social in Arvada hosts a lively trivia night with craft cocktails and tapas. It is free to play, and teams can win prizes.

This monthly educational lunch in Westminster is designed for former Rocky Flats workers. Hosted by CNS Cares, a home care provider serving energy workers, the free gathering shares information about EEOICPA benefits and how participants may qualify for compensation, health coverage, and in-home care at no cost. It also offers a chance to reconnect with friends and former coworkers. The venue is the Old Spaghetti Factory.

Spanish-language yoga classes offer a Creative Hatha Yoga practice designed to be accessible to everyone. The focus is on opening the heart and connecting in community, with a welcoming environment for both first-timers and seasoned practitioners. The class is led by Linnea Bjorkman (they/she, elle/ella). It operates on a pay-what-you-can basis, and donations are strictly optional. Sessions take place at Evolition. Wear comfortable clothing and bring an open mind.

Round up a team for trivia at Old 121 Brewhouse in Lakewood. Enjoy brews while you play for prizes, and there is no entry fee to participate.

New Image Brewing Company in Arvada hosts Denver Trivia League for a lively night of trivia. It is free to play, and the highest scoring teams take home prizes. Enjoy a beer while you test your knowledge alongside friends and fellow patrons.

A three day celebration of horror and pop culture fills Holiday Inn Denver Lakewood with art, cosplay, and special guests. Explore an expansive gallery featuring horror favorites alongside anime, wizard-inspired pieces, Pokémon, gaming, Disney, Alice in Wonderland, Star Wars, superheroes, Middle-earth, parody, and collectibles. Meet cosplayers for photo opportunities, enjoy the showcase at your own pace, and bring the family since the event is kid and stroller friendly. Admission is free, and hotel parking is free. Attendees can receive complimentary 9-by-12 prints by tagging a friend on Instagram or sharing the event on Facebook, with another print available for those who follow Amazing Art Expo on Instagram or Facebook. Limit one per action, verified at check-in. A free cosplay contest takes place on Saturday and Sunday, and dressing up is completely optional. Voice actors Griffin Burns, Robert McCollum, and Mark Whitten will be signing during the show. MAS Authentication will be on site to verify autographs, and guests may bring previously signed items. Voice actor autographs are purchased at their booths with optional upgrades available, while featured artist Sean Carlson will sign purchased artwork and add hand embellishments at no extra cost. Passes are valid for the entire weekend, and VIP options provide early access to meet the voice actors. Photography of cosplayers and the overall scene is encouraged. To protect the artwork, close-up photos of individual pieces are not allowed, and staff can help capture images that follow this policy. No AI-generated art is included, and vendors are not being accepted for this show.

A neighborhood farmers market takes place at Southwest Plaza in Littleton, set up in the southeast parking area of the complex.

Olde Town Arvada hosts a weekend showcase of independent artisans and makers. Browse original fashion and jewelry, stationery and paper goods, creative home decor and housewares, artwork and photography, along with food options. Admission is free, it is open to all ages, and the setting is accessible. Food trucks will be on site serving a variety of treats.

At Southwest Plaza in Littleton, a farmers market features Martindale Farms under the blue tents. Early in the season there are fresh flowers for the garden and asparagus. As the season progresses the selection expands to include items such as sweet corn, melons, dill, oregano, basil, cilantro, lettuce, tomatoes, pumpkins, onions, green beans, and cucumbers. Many other vendors participate with a range of offerings.

A complimentary wedding showcase brings together talented vendors ready to share inspiration, answer questions, and help shape an unforgettable celebration. Meet experienced professionals, explore creative ideas, and gather practical guidance to plan with confidence. Whether newly engaged or putting the finishing touches on details, attendees can connect with experts and discover fresh possibilities for the big day.

Spooktacular at Mines Museum offers a family-friendly Monster Mash filled with Halloween fun. This free, teal pumpkin friendly trick-or-treating event welcomes costumes, features hands-on STEM activities with treats, and includes chances to win prizes along with a photo opportunity with Ms. Colorado. Guests can also look for Mr. Bones, enjoy face painting, meet Blaster the burro, and explore spooky exhibits.

A fall barbecue gathering with live music takes place on the patio at Piggin’ Out Smokehouse. The show is free and serves as the final outdoor event of the year.

A ribbon cutting with the West Metro Chamber marks the opening of Wings Credit Union’s new Lakewood Service Center. Wings is a not-for-profit credit union that serves nearly 1 million members at 90 locations nationwide, helping individuals, families, and businesses pursue their financial goals while supporting the communities it serves. In connection with this opening, Wings contributed to Food Bank of the Rockies to advance local hunger relief. The celebration brings together Chamber members, local business leaders, and community members.

Music Video Bingo at Old 121 (Oak St) features Party Pro DJ's. It is free to play, with chances to win prizes from Old 121, neighboring businesses, and more.

South Jeffco Business Alliance hosts a monthly networking meeting for business owners, marketing professionals, sales people, influencers, and community and government leaders. The purpose is to engage local businesses, strengthen professional networks, and build community. Held at Peak Community & Wellness Center in Littleton, the gathering features presentations and programming followed by time to connect with peers. A light breakfast is provided by a different sponsoring business each month. Supported by Foothills Park & Recreation District, participation is free and no membership is required. Event details can occasionally change, so an RSVP is requested for the latest information.

Westminster Brewing Co hosts free-to-play trivia. Teams compete, and prizes are awarded to the top teams.