Olmsted County Flag

Olmsted County

State:
Minnesota
County Seat:
Rochester

Olmsted County's 2026 population is estimated at 167,685, reflecting a 0.57% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Olmsted County is the 7th largest county in Minnesota. The 2010 population was 144,535 and has grown 16.02% since 2010.

167,685
Total Population
256
Population Density (mi²)
7
Population Rank (State)
954 0.57%
Annual Population Growth

Olmsted County Population

Demographics

Economics and Income Statistics