ZIP codes in Meagher County
4 ZIPs touch Meagher County, Montana. The blue dashed line is the county border; orange ZIPs reach into it.
4
ZIP codes
3
cross the county line
2,850
people in these ZIPs
56
counties in MT
Most people
Meagher County ZIP list
More counties in Montana
- Lake County15
- Lewis and Clark County16
- Liberty County7
- Lincoln County7
- Madison County18
- McCone County6
- Mineral County6
- Missoula County19
- Musselshell County6
- Park County11
- Petroleum County4
- Phillips County8
Questions people actually ask
How many ZIP codes are in Meagher County, Montana?
4 ZIP codes reach into Meagher County. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Meagher County has the most people?
59645 (White Sulphur Springs) has about 1,611 residents, the most of any ZIP touching Meagher County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Meagher County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Meagher County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from