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County ZIP codes · Montana · FIPS 30009

Carbon County, MT ZIP Codes

Carbon County, Montana has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 10 of the residential ones lie mainly in Carbon County and 3 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $80,500 in 59041 (Joliet) to $96,250 in 59070 (Roberts) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Carbon County?

59001 · Absarokee: $83k59007 · Bearcreek: $114k59008 · Belfry: $101k59013 · Boyd: $200k59014 · Bridger: $55k59019 · Columbus: $85k59026 · Edgar: $90k59029 · Fromberg: $72k59041 · Joliet: $81k59044 · Laurel: $88k59068 · Red Lodge: $81k59070 · Roberts: $96k59071 · Roscoe: $93k59014590685901959001590415907059044590085907159029590075902659001 · Absarokee: $83k59007 · Bearcreek: $114k59008 · Belfry: $101k59013 · Boyd: $200k59014 · Bridger: $55k59019 · Columbus: $85k59026 · Edgar: $90k59029 · Fromberg: $72k59041 · Joliet: $81k59044 · Laurel: $88k59068 · Red Lodge: $81k59070 · Roberts: $96k59071 · Roscoe: $93k590145906859019590015904159070590445900859071590295900759001 · Absarokee: $83k59007 · Bearcreek: $114k59008 · Belfry: $101k59013 · Boyd: $200k59014 · Bridger: $55k59019 · Columbus: $85k59026 · Edgar: $90k59029 · Fromberg: $72k59041 · Joliet: $81k59044 · Laurel: $88k59068 · Red Lodge: $81k59070 · Roberts: $96k59071 · Roscoe: $93k59014590685901959001590415907059044590085907159029
The residential ZIP codes of Carbon 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?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $82,692 and $87,648.

They carry 13 postal town names.

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

All 13 residential ZIP codes in Carbon County

10 ZIP codes lie mainly in Carbon County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Carbon County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
59068 Red Lodge 3,977 8 $81k $439k 100%
59041 Joliet 2,258 12 $81k $412k 97%
59014 Bridger 1,510 2 $55k $307k 100%
59070 Roberts 1,403 8 $96k $531k 100%
59029 Fromberg 760 8 $72k $296k 100%
59008 Belfry 456 4 $101k $439k 100%
59013 Boyd 199 46 $200k $541k 100%
59007 Bearcreek 96 3 $114k $213k 100%
59026 Edgar 81 4 $90k $350k 100%
59071 Roscoe 42 0 $93k $450k 100%

Partly in Carbon County

Residential ZIP codes mainly in another county that reach at least 1% into Carbon County, by their share here
In this county
59044 Laurel 12,302 70 $88k $347k 9%
59001 Absarokee 1,409 10 $83k $359k 6%
59019 Columbus 4,438 14 $85k $398k 2%

Download the 13 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?

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

Share of each ZIP code's land in Carbon County and in the neighboring counties
ZIPIn CarbonElsewhere
590449%Yellowstone County91%
590192%Stillwater County98%
5904197%Yellowstone County3%
590016%Stillwater County94%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Carbon County starts with 590.

Three-digit prefixes of Carbon 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 Carbon County's
PrefixSectional centerHereAll codes
590Billings, MT (SCF 590)1375

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