Fremont County is a county located in the U.S. state of Wyoming.
It was named in honor of John C. Frémont, a general, explorer,
and politician. As of 2010, the population was 40,123. Its
county seat is Lander. It is roughly the size of the state of
Vermont. Fremont County was created on March 5, 1884 by the
legislature of the Wyoming Territory The county was created with
land ceded by Sweetwater County. In 1890, Big Horn County was
carved out of Fremont, Johnson, and Sheridan Counties. Hot
Springs County was created in 1911 from parts of Fremont County,
along with a portion of Big Horn County and Park County. In
1921, Sublette County was created from part of Fremont County
and Lincoln County. The boundaries of Fremont County have
remained unchanged since 1921. Fremont County was named for John
Charles Frémont, an explorer of the American West, Senator from
California, and 1856 Republican presidential candidate. Fremont
County is the historical home of the Wind River Indian
Reservation, home of the Eastern Sho