Johnson County, WY ZIP Codes

5 ZIP codes cover all or part of Johnson County, Wyoming: 82834, 82832, 82639, 82640 and 82831. The Census Bureau counts 8,686 residents in the county, with a median household income of $64,871 and a median home value of $326,800. Median household income ranges from $63,395 in 82834 to $94,375 in 82832. Its largest communities include Buffalo and Kaycee.

Johnson County (Census county figures)

MeasureCensus figure
Residents8,686
Households3,932
Median household income$64,871
Median home value$326,800
Median age47.3
Median rent$1,029

All 5 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)10,084
Households (sum of ZIP codes)4,519
Median household income, range across ZIP codes$63,395 (82834) to $94,375 (82832)
Household-weighted average of ZIP medians (an approximation, not a true median)$67,749
Homeowners82.9%
Households with kids under 1823.5%
Moved in the past year13.2%
Carrier routes in EDDM2GO's route library8 routes, 3,890 homes (2 of 5 ZIP codes)

Top facts

Every ZIP code in Johnson County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
82834Buffalo7,5883,431$63,395$328,70080.4%23.3%15.7%73,925100% of its land
82832Banner1,386561$94,375$895,10086.1%34.8%8.7%130821% of its land
82639Kaycee782355$72,112$194,30094.4%18.6%2.4%——94% of its land
82640Linch175106$250,000+$610,500100.0%0.0%0.0%——100% of its land
82831Arvada15366$127,500$580,90095.5%0.0%1.3%——32% of its land

A ZIP code is listed for Johnson County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Price a mailing to Johnson County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Johnson County, WY?
82834, 82832, 82639, 82640 and 82831. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Johnson County?
8,686 residents in 3,932 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Johnson County?
$64,871 for the county as a whole. Its ZIP codes range from $63,395 (82834) to $94,375 (82832).
Which Johnson County ZIP code has the highest median household income?
82832, at $94,375, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Johnson County?
For the 2 of 5 ZIP codes in EDDM2GO's stored route library: 8 carrier routes reaching 3,890 residential and 343 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.