Zip Code 59323 — Colstrip, MT

ZIP Code 59323 is associated with Colstrip, MT, in Rosebud County. The listed population estimate is 2,101; estimated density is 15.2 people per square mile. Among records with population estimates, it ranks #3 of 9 in Rosebud County and #88 of 368 in MT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (45.912340, -106.703200)

Data MetricLocal Statistic
Postal / Zip Code59323
Primary CityColstrip
State / ProvinceMT
CountyRosebud
Total Population2,101
Population Density15.2 people/sq mi
TimezoneAmerica/Denver

How 59323 Compares

MetricZIP 59323Rosebud County recordsMT records
Population estimate2,1018,058 (sum)1,117,606 (sum)
Population Density15.2 /sq mi----
County population rank#3 of 9----
State population rank#88 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 59327Forsyth22.6 mi2,610
ZIP 59043Lame Deer26.3 mi2,727
ZIP 59010Bighorn29.2 mi220
ZIP 59076Sanders31.0 mi26
ZIP 59038Hysham31.7 mi750

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 →