Resident Population in Sully County, SD

Resident Population in Sully County, SD was 1.47900 Thous. of Persons in January of 2025, according to the United States Federal Reserve. Historically, Resident Population in Sully County, SD reached a record high of 2.36200 in January of 1970 and a record low of 1.34600 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Sully County, SD - last updated from the United States Federal Reserve on May of 2026.



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