Zip Code 59632 — Boulder, MT

ZIP Code 59632 is associated with Boulder, MT, in Jefferson County. The listed population estimate is 2,557; estimated density is 2.2 people per square mile. Among records with population estimates, it ranks #3 of 6 in Jefferson County and #73 of 368 in MT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (46.165220, -111.999180)

Data MetricLocal Statistic
Postal / Zip Code59632
Primary CityBoulder
State / ProvinceMT
CountyJefferson
Total Population2,557
Population Density2.2 people/sq mi
TimezoneAmerica/Denver

How 59632 Compares

MetricZIP 59632Jefferson County recordsMT records
Population estimate2,55713,276 (sum)1,117,606 (sum)
Population Density2.2 /sq mi----
County population rank#3 of 6----
State population rank#73 of 368----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MT

ZIP CodeCityDistancePopulation estimate
ZIP 59638Jefferson City13.4 mi769
ZIP 59634Clancy18.7 mi5,521
ZIP 59643Toston20.2 mi867
ZIP 59631Basin20.5 mi375
ZIP 59721Cardwell22.4 mi423

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →