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County ZIP codes · Wyoming · FIPS 56029

Park County, WY ZIP Codes

Park County, Wyoming has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Park County and 2 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $67,534 in 82435 (Powell) to $77,958 in 82414 (Cody) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Park County?

82190 · Yellowstone National Park: $65k82414 · Cody: $78k82421 · Deaver: $42k82423 · Frannie: –82433 · Meeteetse: $45k82435 · Powell: $68k82440 · Ralston: –82450 · Wapiti: $194k82414821908243382435824218245082190 · Yellowstone National Park: $65k82414 · Cody: $78k82421 · Deaver: $42k82423 · Frannie: –82433 · Meeteetse: $45k82435 · Powell: $68k82440 · Ralston: –82450 · Wapiti: $194k824148219082433824358245082190 · Yellowstone National Park: $65k82414 · Cody: $78k82421 · Deaver: $42k82423 · Frannie: –82433 · Meeteetse: $45k82435 · Powell: $68k82440 · Ralston: –82450 · Wapiti: $194k82414821908243382435
The residential ZIP codes of Park 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 8 postal town names: Cody, Powell, Meeteetse, Yellowstone National Park, Deaver, Wapiti, Frannie, Ralston.

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

All 8 residential ZIP codes in Park County

6 ZIP codes lie mainly in Park County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Park County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
82414 Cody 16,582 6 $78k $435k 100%
82435 Powell 12,337 16 $68k $363k 96%
82433 Meeteetse 1,041 1 $45k $225k 100%
82190 Yellowstone National Park 686 0 $65k – 58%
82450 Wapiti 225 7 $194k <$10k 100%
82440 Ralston 71 112 – – 100%

Partly in Park County

Residential ZIP codes mainly in another county that reach at least 1% into Park County, by their share here
In this county
82421 Deaver 379 5 $42k – 50%
82423 Frannie 209 17 – $119k 10%

Download the 8 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 Park County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Park County and in the neighboring counties
ZIPIn ParkElsewhere
8243596%Big Horn County 4%
8219058%Teton County 42%
8242150%Big Horn County 50%
8242310%Big Horn County 90%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Park County's ZIP codes use 2 prefixes: 821 and 824.

Three-digit prefixes of Park 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 Park County's
PrefixSectional centerHereAll codes
821 Billings, MT (SCF 590) 1 1
824 Casper, WY (SCF 826) 7 22

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