28.49 active chiropractors per 100,000 residents — ranked 25 of 51 U.S. states + DC.
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South Carolina has 1,561 active chiropractors (28.49 per 100,000 residents) — ranked 25 of 51 U.S. states + DC. Source: CMS NPPES NPI Registry + U.S. Census Bureau, snapshot 2026-05-06. Threshold for "underserved" in the parent study: 15 per 100,000. Citation: Fonteum Research, /research/chiropractor-supply-by-state-2026.