There are 12 zip codes in Yellowstone County, Montana. The most populated is 59102, located in Billings. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
5910248,480Billings
5910140,848Billings
5910534,895Billings
5910619,057Billings
5904412,851Laurel
590793,508Shepherd
590372,267Huntley
590881,180Worden
590061,132Ballantine
59015367Broadview
59024326Custer
59002187Acton

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