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Zip Code 59011 — Big Timber, MT

59011 is a ZIP Code associated with Big Timber, MT, located within Sweet Grass. The postal region supports an estimated population of 3,167 residents across Data Pending housing units, with a population density of 1.3 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (45.924530, -109.972440)

Data Metric	Local Statistic
Postal / Zip Code	59011
Primary City	Big Timber
State / Province	MT
County	Sweet Grass
Total Population	3,167
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	1.3 people/sq mi
Timezone	America/Denver

How 59011 Compares

Metric	ZIP 59011	Sweet Grass County	MT State Average
Population	3,167	3,624	1,117,606
Median Income	Data Pending	N/A	N/A
Population Density	1.3 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 59055	Melville	15.2 mi	40	N/A
Zip 59082	Springdale	16.4 mi	2	N/A
Zip 59033	Greycliff	18.1 mi	231	N/A
Zip 59069	Reed Point	23.5 mi	458	N/A
Zip 59085	Two Dot	31.3 mi	83	N/A

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 →