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Healthcare Workforce Geography Crosswalk

Published by Department of Health Care Access and Information | State of California | Metadata Last Checked: November 28, 2025 | Last Modified: 2025-11-07T00:59:33.366162
This dataset identifies which census tracts comprise the various geographies used to study the healthcare workforce. Medical Service Study Areas (MSSA) are sub-county geographies used to study medical service in California. Registered Nurse (RN) Areas, which can cross county lines, are used to study the RN workforce. These custom geographies are approved by the California Healthcare Workforce Policy Commission.

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