New Castle Congregational Church
Boston, New Hampshire
Address65 Main St
DenominationNon-Denominational
Last updated June 2026

~496
estimated members
Based on ARDA 2020 data, this is likely one of 15 Non-Denominational congregations in Rockingham County, NH, with an average size of approximately 496 members. Non-Denominational accounts for 8% of the county's 170 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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