Saint John's Catholic Church
Plankinton, South Dakota
Last updated May 2026

~274
estimated members
Based on ARDA 2020 data, this is likely one of 3 Catholic congregations in Aurora County, SD, with an average size of approximately 274 members. Catholic accounts for 43% of the county's 11 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study