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County ZIP codes · Wyoming · FIPS 56007

Carbon County, WY ZIP Codes

Carbon County, Wyoming has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 1 for PO boxes or a single organization. 11 of the residential ones lie mainly in Carbon County and 2 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $62,841 in 82301 (Rawlins) to $95,610 in 82331 (Saratoga) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Carbon County?

82083 · Rock River: $49k82301 · Rawlins: $63k82321 · Baggs: $70k82323 · Dixon: $74k82324 · Elk Mountain: $59k82325 · Encampment: $74k82327 · Hanna: $76k82329 · Medicine Bow: –82331 · Saratoga: $96k82332 · Savery: –82334 · Sinclair: $75k82335 · Walcott: –82620 · Alcova: –82301823318232982325823278262082083823218233482324823328233582083 · Rock River: $49k82301 · Rawlins: $63k82321 · Baggs: $70k82323 · Dixon: $74k82324 · Elk Mountain: $59k82325 · Encampment: $74k82327 · Hanna: $76k82329 · Medicine Bow: –82331 · Saratoga: $96k82332 · Savery: –82334 · Sinclair: $75k82335 · Walcott: –82620 · Alcova: –823018233182329823258232782620820838232182334823248233282083 · Rock River: $49k82301 · Rawlins: $63k82321 · Baggs: $70k82323 · Dixon: $74k82324 · Elk Mountain: $59k82325 · Encampment: $74k82327 · Hanna: $76k82329 · Medicine Bow: –82331 · Saratoga: $96k82332 · Savery: –82334 · Sinclair: $75k82335 · Walcott: –82620 · Alcova: –8230182331823298232582327826208208382321823348232482332
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?

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

11 ZIP codes lie mainly in Carbon County; 2 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
82301 Rawlins 8,180 9 $63k $217k 64%
82331 Saratoga 2,250 4 $96k $364k 100%
82325 Encampment 867 2 $74k $247k 100%
82327 Hanna 789 3 $76k $123k 100%
82321 Baggs 752 4 $70k $228k 100%
82334 Sinclair 560 3 $75k $227k 100%
82329 Medicine Bow 493 2 – $78k 58%
82323 Dixon 267 17 $74k $119k 100%
82324 Elk Mountain 175 1 $59k $228k 100%
82332 Savery 20 0 – – 100%
82335 Walcott no residents 0 – – 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
82083 Rock River 288 1 $49k $126k 35%
82620 Alcova 164 0 – – 8%

Download the 14 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
8230164%Sweetwater County 36%
8232958%Albany County 42%
8208335%Albany County 65%
826208%Natrona County 92%

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

PO Box and single-organization ZIP codes

ZIP codes in Carbon County without a residential area (GeoNames postal codes)
ZIPPostal name
82615Shirley Basin

Source: GeoNames postal codes (CC BY 4.0).

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. Carbon County's ZIP codes use 3 prefixes: 820, 823 and 826.

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
820 Cheyenne, WY (SCF 820) 1 28
823 Cheyenne, WY (SCF 820) 11 14
826 Casper, WY (SCF 826) 2 21

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