Putnam County, Ohio

Putnam County
Putnam County Courthouse
Putnam County Courthouse
Flag of Putnam County
Official seal of Putnam County
Map of Ohio highlighting Putnam County
Location within the U.S. state of Ohio
Map of the United States highlighting Ohio
Ohio's location within the U.S.
Coordinates: 41°01′N 84°08′W / 41.02°N 84.13°W / 41.02; -84.13
Country United States
State Ohio
FoundedJanuary 3, 1834
Named forIsrael Putnam
SeatOttawa
Largest villageOttawa
Area
 • Total
484 sq mi (1,250 km2)
 • Land483 sq mi (1,250 km2)
 • Water1.8 sq mi (5 km2)  0.4%
Population
 (2020)
 • Total
34,451 Decrease
 • Density71/sq mi (27/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district5th
Websitewww.putnamcountyohio.gov

Putnam County is a county located in the northwestern part of the U.S. state of Ohio. As of the 2020 census, the population was 34,451.[1] Its county seat is Ottawa.[2] The county was created in 1820 and later organized in 1834.[3] Its name is in honor of Israel Putnam, a colonial officer in the French and Indian War, who served as a general in the American Revolutionary War.[4] The Blanchard River, which passes through the county, was a key transportation route for early European-American settlers.

  1. ^ 2020 census
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. ^ "Ohio: Individual County Chronologies". Ohio Atlas of Historical County Boundaries. The Newberry Library. 2007. Archived from the original on April 6, 2016. Retrieved February 14, 2015.
  4. ^ Warren, Robert (May 31, 1953). "Blanchard River Brought Pioneers To Putnam". Toledo Blade. p. 3. Retrieved April 30, 2015.