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County ZIP codes · Montana · FIPS 30039

Granite County, MT ZIP Codes

Granite County, Montana has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Granite County and 1 mainly in a neighboring county; 2 cross the county line. Median household income ranges from $58,157 in 59711 (Anaconda) to $90,192 in 59825 (Clinton) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Granite County?

59711 · Anaconda: $58k59825 · Clinton: $90k59832 · Drummond: $64k59837 · Hall: $51k59858 · Philipsburg: $57k598585971159825598325983759711 · Anaconda: $58k59825 · Clinton: $90k59832 · Drummond: $64k59837 · Hall: $51k59858 · Philipsburg: $57k598585971159825598325983759711 · Anaconda: $58k59825 · Clinton: $90k59832 · Drummond: $64k59837 · Hall: $51k59858 · Philipsburg: $57k5985859711598255983259837
The residential ZIP codes of Granite County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 5 postal town names: Anaconda, Clinton, Philipsburg, Drummond, Hall.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 5 residential ZIP codes in Granite County

4 ZIP codes lie mainly in Granite County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Granite County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
59825 Clinton 2,434 6 $90k $370k 62%
59858 Philipsburg 1,494 2 $57k $380k 100%
59832 Drummond 962 4 $64k $320k 100%
59837 Hall 639 3 $51k $332k 100%

Partly in Granite County

Residential ZIP codes mainly in another county that reach at least 1% into Granite County, by their share here
In this county
59711 Anaconda 9,529 17 $58k $237k 25%

Download the 5 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

2 ZIP codes of Granite County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Granite County and in the neighboring counties
ZIPIn GraniteElsewhere
5971125%Deer Lodge County64%; Silver Bow County11%
5982562%Missoula County38%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Granite County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Granite County's ZIP codes use 2 prefixes: 597 and 598.

Three-digit prefixes of Granite County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Granite County's
PrefixSectional centerHereAll codes
597Billings, MT (SCF 590)149
598Missoula, MT (SCF 598)453

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.