Carter County, Montana ZIP codes

5ZIP codes
5Cities and towns
1,115People in ZIP areas
307, 406, 605Area codes

Carter County is in Montana and the Mountain Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Carter County

ZIP codeCityTypePopulationMedian income
59311AlzadaStandard143$88,021
59316BoyesStandard15$48,750
59319CapitolStandard40–
59324EkalakaStandard777$57,188
59332HammondStandard140$32,241

Cities and towns in Carter County

Area codes in Carter County

Questions

How many ZIP codes are in Carter County, MT?
Carter County has 5 ZIP codes.
What cities are in Carter County?
Carter County ZIP codes cover Alzada, Boyes, Capitol, Ekalaka and Hammond.
What area code is Carter County, MT?
Carter County uses area codes 307, 406 and 605.
What time zone is Carter County in?
Carter County is in Mountain Time.

Other Montana counties