St. John the Baptist Catholic Church

Boulder, Colorado

Address323 Collyer St, Longmont, CO 80501
DenominationCatholic
Phone+1 303-776-0737
Emailinfo@johnthebaptist.org

Services

Mass

Mon8:15 AM, 12:10 PM
Fri8:15 AM, 12:10 PM
Sun7:00 AM, 8:30 AM, 10:30 AM, 12:30 PM, 4:00 PM

Santa Misa

Thu6:00 PM

Vigil Mass

Sat5:00 PM, 6:30 PM
LanguagesEnglish, Spanish

Last updated May 2026

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Map showing location of St. John the Baptist Catholic Church

~5,867

estimated members

Based on ARDA 2020 data, this is likely one of 9 Catholic congregations in Boulder County, CO, with an average size of approximately 5,867 members. Catholic accounts for 44% of the county's 205 congregations.

Source: ARDA 2020 Religious Congregations & Membership Study

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