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: December 1, 2022

ZIP Codes for City of Boulder, MT

Boulder, MT Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 59632StandardJefferson1,939

Timezone(s):Mountain (GMT -07:00)
Population:1,183 (More Details)
Male Population:620
Female Population:563
Median Age:44
ZIP Codes:1
Area Codes:1
Total Area:1,659 square miles (county)
Land Area:1,656 square miles (county)
Water Area:3 square miles (county)

Boulder, MT Demographic Information *

Total population1,183
Male population620
Female population563
Median age (years)43.7
White Population1,107
Black Population0
Indian Population21
Asian Population5
Hawaiian Population0
Hispanic Population34
Median age (Male)41.6
Median age (Female)44.9
Total households514
Family households (families)298
Average household size2.15
Average family size2.79
Total housing units565
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 12/1/2022],
  2. Internal Data Creation [Last Updated: 12/1/2022],
  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],