Zip Code 59917 — Eureka, MT

ZIP Code 59917 is associated with Eureka, MT, in Lincoln County. The listed population estimate is 4,920; estimated density is 7.7 people per square mile. Among records with population estimates, it ranks #2 of 7 in Lincoln County and #49 of 368 in MT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (48.906140, -114.913590)

Data MetricLocal Statistic
Postal / Zip Code59917
Primary CityEureka
State / ProvinceMT
CountyLincoln
Total Population4,920
Population Density7.7 people/sq mi
TimezoneAmerica/Denver

How 59917 Compares

MetricZIP 59917Lincoln County recordsMT records
Population estimate4,92021,175 (sum)1,117,606 (sum)
Population Density7.7 /sq mi----
County population rank#2 of 7----
State population rank#49 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 59930Rexford10.9 mi1,220
ZIP 59918Fortine11.3 mi509
ZIP 59933Stryker15.2 mi2
ZIP 59934Trego18.8 mi693
ZIP 59927Olney25.5 mi270

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 →