STEM After-School Programs in Colorado
Junely tracks 122 STEM after-school programs across Colorado — fall 2026 schedules captured June 25 – October 9, 2026.
122 programs85 open now$215–$1,250ages 3–18captured June 25 – October 9, 2026
4-H Model Rocketry Project
Colorado 4-H
Ages 11-18
OpenView details →Adventures in STEM - Olander (Fall 1)
Play-Well TEKnologies
Grades K-3 · Thu 2:28-3:58pm (Sep-Oct)
OpenView details →Adventures in STEM - Olander (Fall 2)
Play-Well TEKnologies
Grades K-3 · Thu 2:28-3:58pm (Nov-Dec)
OpenView details →Adventures in STEM - Shepardson (Fall 1)
Play-Well TEKnologies
Grades K-3 · Thu 3:43-4:45pm (Sep-Oct)
OpenView details →Adventures in STEM - Shepardson (Fall 2)
Play-Well TEKnologies
Grades K-3 · Thu 3:43-4:45pm (Nov-Dec)
OpenView details →Adventures in STEM - Tavelli (Fall 1)
Play-Well TEKnologies
Grades K-5 · Tue 3:10-4:40pm (Sep-Oct)
OpenView details →Adventures in STEM - Tavelli (Fall 2)
Play-Well TEKnologies
Grades K-5 · Tue 3:10-4:40pm (Nov-Dec)
OpenView details →Adventures in STEM - Werner (Fall 1)
Play-Well TEKnologies
Grades K-3 · Tue 3:45-5:15pm (Sep-Oct)
OpenView details →Adventures in STEM - Werner (Fall 2)
Play-Well TEKnologies
Grades K-3 · Tue 3:45-5:15pm (Nov-Dec)
OpenView details →Adventures in STEM (LEGO) - Bacon Elem
Play-Well TEKnologies
Grades K-2 · Mon 2:23-3:30pm (Sep-Nov)
OpenView details →Adventures in STEM (LEGO) - Zach Elem
Play-Well TEKnologies
Grades K-1 · Mon 2:23-3:45pm (Sep-Nov)
OpenView details →After School Programs
Aspen Science Center
Grades K-5 · Thursdays 4pm · Free
OpenView details →After School Robotics
Aspen Science Center
Grades 3-4 · Various sessions; 8 weeks each
OpenView details →After-school Classes
Coding with Kids
Ages 5-18
OpenView details →After-School Program
Code Ninjas
Ages 5-14 · Weekday afternoons after school
OpenView details →AI Powered Custom Learning
iCode Cherry Creek
Ages 6-18
OpenView details →AI Studio (custom learning path)
iCode School
Flexible, start anytime
OpenView details →Artistic Clothing
Larimer County 4-H
Ages 8-18
OpenView details →Aspen Science Center
Aspen Youth Center
Grades 3-8 · 4pm to 5pm
OpenView details →Belt Program (STEM belts, coding & robotics)
iCode School
Ages 5-13+ · Weekly after school
OpenView details →Birthday Parties
Snapology
All ages (kids) · By appointment
OpenView details →Birthday Parties
Mad Science
Ages 5-11 · By appointment / scheduled
OpenView details →Brick Model Building
Bricks 4 Kidz
Ages 3-5, 5-7, 7-9, 9+
OpenView details →Cake Decorating
Larimer County 4-H
Ages 8-18
OpenView details →Camps (seasonal coding & robotics day camps)
Code Ninjas
Ages 5-14 · Day camps during summer, winter, and spring breaks
OpenView details →Camps & Workshops (incl. Summer Camps)
Snapology
Ages 4-14 (camps primarily 5-12) · School breaks and summer; weekly half-day / multi-day camps and one-day workshops · Half-day camps from $215/week; one-day workshops from $250 (varies by location)
OpenView details →Clothing Construction
Larimer County 4-H
Ages 8-18
OpenView details →Clubs (team-based collaborative projects)
Code Ninjas
Ages 8-14 · Scheduled club sessions (varies by center)
OpenView details →Code Ninjas CREATE (belt-based coding / game development)
Code Ninjas
Ages 8-14 · Weekly, by appointment (flexible drop-in sessions during center hours, ~Mon-Sat after school)
OpenView details →Code Ninjas JR
Code Ninjas
Ages 5-7 · Weekly, by appointment (drop-in after school / weekend session times set by each center)
OpenView details →Coding
Bricks 4 Kidz
Ages 7-9, 9+
OpenView details →Computer Science
Larimer County 4-H
Ages 8-18
OpenView details →Crazy ChemWorks
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Creature Creator Robotics
Snapology of Denver-Park Hill
Ages 7-14
OpenView details →CyberPatriot
Vista Ridge High School
Grades 9-12 · Mon & Wed 2:45-4:00pm
OpenView details →Electricity
Larimer County 4-H
Ages 8-18
OpenView details →Explore Coding (Spike Prime) - Bacon Elem
Play-Well TEKnologies
Grades 3-5 · Mon 2:23-3:30pm (Sep-Nov)
OpenView details →Fantastic Forces
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Food and Nutrition
Larimer County 4-H
Ages 8-18
OpenView details →GameBots
Snapology of Denver-Park Hill
Ages 7-14
OpenView details →Heritage Arts
Larimer County 4-H
Ages 8-18
OpenView details →Holiday Camps
iCode Cherry Creek
Ages 6-18
OpenView details →Home Design and Decor
Larimer County 4-H
Ages 8-18
OpenView details →Java
theCoderSchool Centennial
Ages 12+
OpenView details →KinderBots
Snapology of Denver-Park Hill
Ages 4-6
OpenView details →LEGO® Classic & Technic Bricks
Bricks 4 Kidz
Ages 3-5, 5-7, 7-9, 9+
OpenView details →Membership (one weekly class included)
Snapology
Ages 4-14 · One class per week
OpenView details →Metalworking
Larimer County 4-H
Ages 8-18
OpenView details →Micro:bit
Bricks 4 Kidz
Ages 7-9
OpenView details →Minecraft Master Engineering - Bennett
Play-Well TEKnologies
Grades K-5 · Thu 3:30-5pm (Sep-Oct)
OpenView details →Mobile App Development
Wize Computing Academy
Grades 1-12
OpenView details →Model Rocketry
Larimer County 4-H
Ages 8-18
OpenView details →NASA Academy of Future Space Explorers
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Online Premium Classes
Coding with Kids
Ages 5-18
OpenView details →Pokemon Master Engineering - Bennett
Play-Well TEKnologies
Grades K-5 · Thu 3:30-5pm (Nov-Dec)
OpenView details →Preschool STEAM
Snapology
Ages ~3-5 (preschool) · Weekly classes
OpenView details →Python
theCoderSchool Centennial
Ages 10+
OpenView details →Ready, STEM, Go!
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Real World Robotics
Snapology of Denver-Park Hill
Ages 7-14
OpenView details →Robotics
Bricks 4 Kidz
Ages 7-9, 9+
OpenView details →Robotics
theCoderSchool Centennial
Ages 8+
OpenView details →Robotics and Engineering
Larimer County 4-H
Ages 8-18
OpenView details →Robotics Club
Loveland Classical Schools
Grades 4-12 · Tuesdays 3:45-4:30pm
OpenView details →Robotics Team
Boltz Middle School
Ages 9-16 · Tuesdays & Thursdays
OpenView details →School Partner Tech Clubs
iCode Cherry Creek
Ages 6-18
OpenView details →Science Surprise
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Scratch
Bricks 4 Kidz
Ages 7-9, 9+
OpenView details →Scratch
theCoderSchool Centennial
Ages 7-10
OpenView details →Scratch / Micro:bit
Bricks 4 Kidz
Ages 7-9
OpenView details →Scratch / Spike Prime
Bricks 4 Kidz
Ages 9+
OpenView details →Small Engines
Larimer County 4-H
Ages 8-18
OpenView details →Spike Prime
Bricks 4 Kidz
Ages 9+
OpenView details →STEM Clubs
Aspen Science Center
Grades 6-8 · Each semester
OpenView details →STEM Discovery - Resurrection Christian
Play-Well TEKnologies
Grades K-2 · Mon 3:30-5pm (Sep-Nov)
OpenView details →STEM FUNdamentals (LEGO) - Beattie Elem
Play-Well TEKnologies
Grades K-5 · Thu 3:45-5:15pm (Sep-Nov)
OpenView details →STEM Innovations - Resurrection Christian
Play-Well TEKnologies
Grades 3-5 · Tue 3:30-5pm (Sep-Dec)
OpenView details →STEM Innovations (LEGO) - Zach Elem
Play-Well TEKnologies
Grades 2-5 · Wed 2:23-3:45pm (Sep-Nov)
OpenView details →STEM Odyssey
Mad Science of Colorado
Grades K-6 · 1-hour class per week
OpenView details →Summer Camps
Mad Science
Ages 5-11 · Full-day and half-day options, weekday sessions
OpenView details →Summer Coding Camps
Coding with Kids
Ages 5-18
OpenView details →Video Game Design
Bricks 4 Kidz
Ages 7-9, 9+
OpenView details →Weekly Classes - Belts
iCode Cherry Creek
Ages 6-18
OpenView details →Weekly STEAM / Robotics & Coding Classes (after-school & community enrichment)
Snapology
Ages 4-14 · Weekly classes at community locations (after school / scheduled sessions)
OpenView details →Woodworking
Larimer County 4-H
Ages 8-18
OpenView details →Занимательная химия
Colorado Russian Center
от 6 лет
OpenView details →4-H After School Program
Weld County 4-H
5-18 · free to low-cost
View details →4-H Robotics Project (Junk Drawer, Platform, and Robotics Team units)
Weld County 4-H
View details →Aeronautics Drone Pathway (Drone Applications, Airplane Design, Drone Design)
Innovation Center of St. Vrain Valley Schools
grades 9-12
View details →After-School Coding & Mobile App Development
Silicon STEM Academy
View details →After-School STEM & Academic Success Programs
Boys & Girls Clubs of Pueblo County
View details →Calling All Coders (LEGO Spike)
The Powerhouse
Elementary · Weekdays after school · Free
View details →Cañon City Junior Ranger Program
Cañon City Area Recreation & Park District
5-11 · Free
View details →Colorado Math Circle (Galois MS / Euler HS groups, ARML, afterschool)
Colorado Math Circle
middle and high school (approx. 11-18)
View details →Destination Imagination
The Powerhouse
View details →Drone Performance Team (student project team)
Innovation Center of St. Vrain Valley Schools
high school (approx. 14-18)
View details →Drone Soccer
Boys & Girls Clubs of the Pikes Peak Region
View details →Esports Camps, Workshops & Tournaments
South Suburban Parks and Recreation
View details →eSports Leagues & Tournaments
YMCA of Metro Denver
12-18
View details →EUREKA! STEAM After School
Eureka! McConnell Science Museum
K-5th grade
View details →FIRST LEGO League (Explore & Challenge teams)
The Hi Fives Robotics
Grades 2-8
View details →FIRST LEGO League Challenge
Mesa County Valley School District 51
View details →FIRST LEGO League Challenge (Colorado)
Colorado FIRST
9-16 (Challenge); FLL divisions span ages 4-16 / PreK-8 · ~$1,250 first-year team budget; ~$600 returning team (costs divided among members; grants available)
View details →FIRST LEGO League Explore
Colorado FIRST
6-10
View details →FIRST LEGO League Explore
Mesa County Valley School District 51
Grades 2-4
View details →FIRST LEGO League Teams
The Powerhouse
Elementary
View details →FIRST Robotics Competition Team 4944
The Hi Fives Robotics
Grades 9-12
View details →FIRST Tech Challenge
Mesa County Valley School District 51
View details →FIRST Tech Challenge Team 25241
The Hi Fives Robotics
Grades 6-12
View details →Grow with H2O Hydroponics Program
Mad Science
Elementary · 12-week sessions
View details →In-School Field Trips & Custom Events / Assemblies
Snapology
Groups/organizations (ages 4-14) · Customizable, by arrangement
View details →In-School Workshops
Mad Science
Preschool and elementary · Single-session, curriculum-correlated, by appointment
View details →Logan County 4-H STEM & science projects (rocketry, shooting sports, wildlife)
CSU Extension
8-18
View details →Logan County 4-H Youth Development (clubs)
CSU Extension
8-18
View details →On-Site STEAM Enrichment
Riverside Education Centers
Grades 1-12 · Weekdays after school
View details →Preteen Woodworking 5B
Groundworks Art Lab
9-12 · Pay What You Can (standard price $255)
View details →STEAM After School Programs
Eureka! McConnell Science Museum
K-5
View details →STEAM After-School — Animas Valley Elem
The Powerhouse
Grades 1-5 · Wed 2:30-4pm · Free
View details →STEAM After-School — Florida Mesa Elem
The Powerhouse
Grades 1-5 · Tue 2:50-4pm · Free
View details →STEAM After-School — Fort Lewis Mesa Elem
The Powerhouse
Grades 1-5 · Thu 2:30-4pm · Free
View details →STREAM Preschool at Confluence Center
Eureka! McConnell Science Museum
View details →Teen Woodworking 5A
Groundworks Art Lab
12-16 · Pay What You Can (standard price $255)
View details →Youth STEM Programming
Cañon City Public Library
Free
View details →Frequently asked
What STEM after-school programs in Colorado are open right now?
As of the June 25 – October 9, 2026 capture, Junely lists 122 STEM after-school programs in Colorado, of which 85 are open for enrollment. Statuses were captured June 25 – October 9, 2026 from each provider's published fall 2026 schedule.
How much do STEM after-school programs cost in Colorado?
STEM after-school programs in Colorado on Junely range from about $215 to $1,250, with a median around $255. Prices come from each provider's published fall 2026 schedule, captured June 25 – October 9, 2026.
Are there STEM after-school programs in Colorado for a 10-year-old?
Yes. 85 of the 122 STEM after-school programs in Colorado accept 10-year-olds. Filter by age on Junely to see live availability for your child's age.