There are 9 zip codes in Fergus County, Montana. The most populated is 59457, located in Lewistown. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
594578,783Lewistown
59430593Denton
59464553Moore
59032442Grass Range
59471357Roy
59489335Winifred
59451249Hilger
59441138Forest Grove
5942461Coffee Creek

Zip Codes in Fergus County, Montana by Population (2024)