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Zip Code 59860 — Polson, MT

ZIP Code 59860 is associated with Polson, MT, in Lake County. The listed population estimate is 11,897; estimated density is 17.6 people per square mile. Among records with population estimates, it ranks #1 of 12 in Lake County and #26 of 368 in MT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (47.713140, -114.178320)

Data MetricLocal Statistic
Postal / Zip Code59860
Primary CityPolson
State / ProvinceMT
CountyLake
Total Population11,897
Population Density17.6 people/sq mi
TimezoneAmerica/Denver

How 59860 Compares

MetricZIP 59860Lake County recordsMT records
Population estimate11,89736,471 (sum)1,117,606 (sum)
Population Density17.6 /sq mi----
County population rank#1 of 12----
State population rank#26 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 59910Big Arm8.1 mi692
ZIP 59855Pablo8.3 mi419
ZIP 59914Dayton12.1 mi345
ZIP 59864Ronan12.7 mi7,301
ZIP 59915Elmo13.1 mi452

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 →