Olmsted County, Minnesota

Olmsted County
Olmsted County Government Center (pre-expansion)
Location within the U.S. state of Minnesota
Minnesota's location within the U.S.
Coordinates: 44°00′N 92°24′W / 44°N 92.4°W / 44; -92.4
Country United States
State Minnesota
FoundedFebruary 20, 1855
Named afterDavid Olmsted
SeatRochester
Largest cityRochester
Area
  Total
655 sq mi (1,700 km2)
  Land653 sq mi (1,690 km2)
  Water1.5 sq mi (4 km2)  0.2%
Population
 (2020)
  Total
162,847
  Estimate 
(2024)
166,424
  Density249/sq mi (96/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitewww.olmstedcounty.gov

Olmsted County is a county in the U.S. state of Minnesota. As of the 2020 census, the population is 162,847. Its county seat and most populous city is Rochester.

Olmsted County is part of the Rochester Metropolitan Statistical Area.