Cost of Living in South Dakota Rises Slightly in 2025, New Data Shows

South Dakota remains one of the more affordable states in the United States, but new figures show that the income needed to maintain a basic standard of living continues to rise. In 2025, a single adult in South Dakota needs an annual income of $82,160 to meet typical living expenses, according to the latest estimates. For a family of four, the required income climbs to $197,932.80.The state ranks 45th nationwide for income needed by a four-person family, placing it among the more affordable states compared with much of the country. Despite that relatively low ranking, costs have increased slightly from the previous year. In 2024, a single adult needed $81,453 to cover living expenses, while a family of four required $192,608.That represents a 0.87% increase in the income needed for a single adult and a 2.76% increase for a four-person family over the past year. The larger rise for families reflects growing costs in several household budget categories, including housing, childcare, food, and transportation—expenses that typically affect multi-person households more heavily than individuals. Even with these increases, South Dakota’s required income levels remain below those seen in many states with higher housing and childcare costs. Economists often note that the state’s lower population density, smaller housing markets, and generally moderate living expenses help keep overall costs comparatively lower. Still, the year-over-year increases highlight a broader national trend: the cost of maintaining a comfortable standard of living continues to edge upward, even in states traditionally viewed as affordable. For South Dakota residents, the modest rise may not drastically change the state’s affordability ranking, but it signals that household budgets will likely continue to feel pressure from gradually increasing costs in the years ahead.