STEM After-School Programs in Boulder, Colorado
Junely lists 8 STEM after-school programs in Boulder — fall 2026 schedules captured June 25 – August 31, 2026.
8 programs5 open nowages 5–18captured June 25 – August 31, 2026
After-School Program
Code Ninjas
Ages 5-14 · Weekday afternoons after school
OpenView details →Camps (seasonal coding & robotics day camps)
Code Ninjas
Ages 5-14 · Day camps during summer, winter, and spring breaks
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 →After-School Coding Classes (Denver/Boulder Region)
Coding with Kids
Grades K-12 (ages 5-18)
View details →Colorado Math Circle (Galois MS / Euler HS groups, ARML, afterschool)
Colorado Math Circle
middle and high school (approx. 11-18)
View details →Kids at TinkerMill — youth maker classes at Longmont makerspace
TinkerMill
View details →Frequently asked
What STEM after-school programs in Boulder are open right now?
As of the June 25 – August 31, 2026 capture, Junely lists 8 STEM after-school programs in Boulder, of which 5 are open for enrollment. Statuses were captured June 25 – August 31, 2026 from each provider's published fall 2026 schedule.
Are there STEM after-school programs in Boulder for a 10-year-old?
Yes. 6 of the 8 STEM after-school programs in Boulder accept 10-year-olds. Filter by age on Junely to see live availability for your child's age.