Brief
methodology.

The 2025 Greater Boston Jewish Community Study is an independent research initiative sponsored by Combined Jewish Philanthropies. The study was led by Rosov Consulting and SSRS between December 2024 and April 2025. Researchers used a probability-based survey and interviews to gather information from Jewish households across Greater Boston.

A total of 4,776 adults living in Jewish households completed the survey. Participants were randomly selected from samples of residential addresses and lists provided by 89 Jewish organizations. This approach helped ensure the study included those who are only somewhat or not at all involved in Jewish life.

The survey was available in English, Russian, Spanish, and Hebrew, and people could complete it online, by mail, or by phone. Most responses came through the online version, but many also used paper surveys or spoke with interviewers by phone.

The survey asked about 200 questions about personal and household characteristics, Jewish identity, community involvement, education, Israel, antisemitism, health, and finances. The study was reviewed and approved by the University of Southern Maine’s Institutional Review Board to ensure it met ethical research standards. The margin of error for the full sample is ±2.6 percentage points.

To add more depth, the study included over 50 one-on-one interviews and 12 focus groups, with over 70 survey participants, based on specific topics or social and demographic characteristics. These conversations helped researchers understand personal experiences and perspectives.