Journal article
State Sanctuary Policies and the Immigration Enforcement Activities Across U.S. Counties: Implications for Population Health
Health affairs scholar, v 4(8), qxag212
14 Aug 2026
Abstract
Introduction
Recent increases in US immigration enforcement may contribute to an anti-immigrant environment that poses serious health and social risks. In response, several states have enacted sanctuary policies limiting cooperation with federal immigration authorities, though their population-level impacts remain unclear. This study estimated associations between state sanctuary policy enactment and county-level public program participation by baseline immigration enforcement.
Methods
County-level data from 2011 to 2023 were obtained from the American Community Survey and Syracuse Transactional Records Access Clearinghouse. Outcomes included county-level Medicaid and Supplemental Nutrition Assistance Program (SNAP) participation. Sanctuary policies were modeled as a time-varying exposure using a staggered difference-in-differences framework, with analyses stratified by baseline immigration enforcement.
Results
We found no statistically significant association between sanctuary policy enactment and Medicaid or SNAP enrollment per 10 000 likely eligible individuals in counties with high baseline enforcement; however, estimated percent changes were positive (Medicaid percent change: 28.6, 95% CI: −14.9, 94.3; SNAP: 9.9, 95% CI: −81.6, 557.5). In counties with low baseline enforcement, associations were not statistically significant, and estimates were smaller in magnitude.
Conclusion
These findings suggest that protective immigration policies may partially mitigate chilling effects and promote engagement with social supports among eligible populations. However, estimates should be interpreted cautiously given the limited number of treated states.
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Details
- Title
- State Sanctuary Policies and the Immigration Enforcement Activities Across U.S. Counties: Implications for Population Health
- Creators
- Alexandra Eastus (Corresponding Author) - Drexel UniversityCaroline Kravitz - Drexel UniversityAlina Schnake-Mahl - Drexel UniversityTamara Rushovich - Drexel UniversitySerenity Lita Lillibridge - Drexel UniversityBrent Langellier - Drexel University
- Publication Details
- Health affairs scholar, v 4(8), qxag212
- Publisher
- Oxford University Press
- Number of pages
- 10
- Grant note
- Robert Wood Johnson Foundation: #81679 National Institutes of Health National Institute of Minority Health and Health Disparities: R01MD015107
This project was funded by the Robert Wood Johnson Foundation (Grant #81679) and the National Institute on Minority Health and Health Disparities (Grant ID: R01MD015107). Funding sources had no involvement in the study design, collection, analysis and interpretation of data, writing of the report, or decision to submit the article for publication.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Urban Health Collaborative; Health Management and Policy
- Web of Science ID
- WOS:001857324900001
- Other Identifier
- 991022202067204721