Journey Language Center
“The teachers are excellent and their process is enjoyable and very effective in facilitating good progress and results.”
Best ESL Classes near Boulder, CO
2 of these schools are based in Boulder; the others serve Boulder from Thornton (18 mi), Lakewood (24 mi) and Denver (27 mi).
1 open weekends · 4 rated 4.5+
Data verified October 16, 2026
We are still growing
There are too few quality options within 15 miles, so we have expanded area of coverage to up to 60 miles from you. This includes Boulder and several other cities.
Your English School
Language Education Institute
“Definitely a low cost option for non English speakers to really learn the English language.”
Common Ground International
“Attended the CGI school in Costa Rica and felt that this program stands out for the quality of organization ,ease of communication and additional activities outside of the formal lessons.”
Private Language Center (Centro De Idiomas)
“It's a great school and it has excellent teachers !!”
The 5 schools listed for Boulder, CO teach English as a second language. Which courses, levels and exams each one covers comes from what it publishes itself; ratings and quotes come from public reviews.
Area overview: Boulder, CO
The 5 schools on this page are rated from 4.3 to 5.0 across 111 reviews; 1 has 50 or more reviews and 4 are rated 4.5 or higher. 1 is open on Saturdays. All 5 have ten or more years of experience, the longest 29 years. We have a website on file for all 5 of the schools on this page; 1 publishes a contact page and 2 list a public email. We count these figures across the schools on this page; distances are straight-line, and hours and prices change, so confirm the details with the school before you enroll.
Are the ESL schools on this page all in Boulder?
2 of the 5 are, and the others come from other towns within 30 mi. Travel time matters more than usual here, because these courses run several times a week and a long commute is what ends most of them.
Why these companies made our list
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