Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Buffalo, WY

Need a ZIP Code for Buffalo, WY? Please enter an address.

Counties:JOHNSON, WY
Area Code(s):307
Timezone(s):Mountain (GMT -07:00)
City Population:4,585 (More Details)
Congressional District(s):No Districts
Land Area:4,154 square miles (county)
Water Area:20 square miles (county)

2 ZIP Codes

Buffalo, WY ZIP Code Boundaries

Download ZIP Code Database

Buffalo, WY Covers 2 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
82840P.O. Box00.00%BUFFALO

Buffalo, WY Demographic Information *

Total population**4,585
Male population2,296
Female population2,289
Median age (years)42.2
White Population4,378
Black Population12
Indian Population72
Asian Population30
Hawaiian Population0
Hispanic Population159
Median age (Male)41.4
Median age (Female)42.9
Total households2,080
Family households (families)1,198
Average household size2.17
Average family size2.88
Total housing units2,300
* Demographic data is based on 2010 Census for the City of BUFFALO.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],