SIZE
4,350 mi²
FOUNDED
1885
COUNTY SEAT
LEWISTOWN
POPULATION
11,050
LARGEST CITY
LEWISTOWN
COUNTY NUMBER
08
County Fun Fact
Fergus County originally contained at least portions of Golden Valley, Judith Basin, Musselshell, Petroleum and Wheatland Counties. At its inception, Fergus County was larger than many of the New England states.
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