Sanborn County, South Dakota Demographics 2026

Population Overview

Sanborn County is located in South Dakota with a total population of 2,370. It is the 54th most populous county out of 66 in South Dakota. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Sanborn County is 38.6 years. This is 2% higher than the state median of 37.7 years.

Economy, Income & Housing

The median household income in Sanborn County is $69,870. This is 4% lower than the state median of $72,421. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 11.4%. This is 5% lower than the state poverty rate of 12.0%. The unemployment rate is 1.1%. This is 62% lower than the state rate of 3.0%. The median home value is $138,500. Housing costs are 42% lower than the state median of $236,800. With a home-value-to-income ratio of just 2.0x, Sanborn County is one of the most affordable housing markets in the area. 77.6% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 68.6%.

Race & Ethnicity

Sanborn County has a predominantly White (non-Hispanic) population, comprising 93.1% of all residents. Hispanic or Latino residents account for 4.2%.

Education

19.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 38% lower than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.8%.