St. John the Baptist Catholic Church

Longmont, Colorado

Address

323 Collyer St

Denomination

Catholic

Phone

+1 303-776-0737

Service times

Sun
7:00 AM Mass8:30 AM Mass10:30 AM Mass12:30 PM Mass4:00 PM Mass
monday-friday
8:15 AM Mass12:10 PM Mass
Thu
6:00 PM Other
Sat
5:00 PM Mass6:30 PM Mass

Languages

English, Spanish

Last updated September 2026

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5,000-20,000

estimated members

This is likely one of 9 Catholic congregations in Boulder County, CO. Catholic accounts for 4% of the county's 205 congregations.

This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.

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