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Lewis and Clark County, Montana Zip Codes
Zip Code
City
Population
59601
Helena
31,447
59602
Helena
29,846
59635
East Helena
7,815
59639
Lincoln
1,171
59410
Augusta
621
59648
Wolf Creek
335
59633
Canyon Creek
289
59625
Helena
155
59640
Marysville
67
59636
Fort Harrison
27
59623
Helena
0
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.