SIZE
1,674 mi²
FOUNDED
1925
COUNTY SEAT
WINNETT
POPULATION
487
LARGEST CITY
WINNETT
COUNTY NUMBER
55
County Fun Fact
Petroleum County boasts more than 1 million acres of land, but is the least populous county in Montana, and one of the least-populous in the country.
SENATOR
LAWMAKER FOR THIS COUNTY
REPRESENTATIVE
LAWMAKER FOR THIS COUNTY
