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County ProfileMT

Lincoln County

Population: 19,677 · 7 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
19,677
People
Median age
52.8
Housing
Total households
9,082
Income
Median household income
$47,143
Housing
Total housing units
11,006
Employment
Employment rate
41.5%
Education
Bachelor’s degree or higher
18.9%
Healthcare
Insured population
85.1%
County details
Local time 00:16:13(MT)
NameLincoln
Total ZIP codes7total
ZIP codes (by type)
4 Standard3 PO Box
Area code406
TimezoneMountain Time (MT)
Coordinates48.5523847, -115.4631849
Land area3,612.6 sq miles(9,356.5 km²)

Map of Lincoln county, Montana with ZIP codes

Map of Lincoln County, Montana and ZIP codes

Cities and Communities in Lincoln County

Compare the largest cities in Lincoln County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Libby2,775$34,1431ZIPs
Eureka1,380$38,7501ZIPs
Troy797$32,2501ZIPs
Trego515$108,7501ZIPs
Fortine317$66,4021ZIPs
Rexford78$51,4061ZIPs
Stryker251ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Lincoln County

Review the most populated postal areas across Lincoln County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
59923Libby$44,9809,743
59917Eureka$50,1394,274
59935Troy$39,7123,432
59930Rexford$61,9231,184
59934Trego$108,875523
59918Fortine$67,250492
59933Stryker29

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS