Fannin County, Texas

Fannin County
Location within the U.S. state of Texas
Texas's location within the U.S.
Coordinates: 33°35′N 96°07′W / 33.59°N 96.11°W / 33.59; -96.11
Country United States
State Texas
Founded1838
Named afterJames Fannin
SeatBonham
Largest cityBonham
Area
  Total
899 sq mi (2,330 km2)
  Land891 sq mi (2,310 km2)
  Water8.0 sq mi (21 km2)  0.9%
Population
 (2020)
  Total
35,662
  Density40/sq mi (15/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district4th
Websitewww.co.fannin.tx.us

Fannin County is a county in the far northeast of the U.S. state of Texas, on the border with Oklahoma. As of the 2020 census, its population was 35,662, making it the 87th-most populous county in Texas. The entirety of Fannin County is a part of the Bonham micropolitan statistical area and the Dallas-Fort Worth combined statistical area. The county seat is Bonham.