% of Population on Food Stamps or SNAP (Last 12 Months), by Zip Code (ZCTA5) — South Dakota

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in western South Dakota, particularly those overlapping the Pine Ridge and Cheyenne River reservations, display the highest SNAP participation rates, frequently exceeding 30–50%, forming a pronounced cluster of food assistance dependency. Central and eastern regions of the state generally exhibit lower rates in the 0–10% range, though notable exceptions appear in urban centers like Sioux Falls and areas in the southeast where select zip codes reach 15–25%. The starkest contrasts occur between reservation communities in the west and the agricultural zip codes of the central plains, where SNAP usage often falls below 5%.

Data: U.S. Census Bureau, 2023 ACS

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