Postal Codes

59923 ZIP Code

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ZIP code 59923 covers Libby, Montana, with a population of about 9,885 and a median household income of $45,332.

Population
9,8857 per square mile
Median age
54.415.7 points above the US average
Median household income
$45,33235% below the Montana median
Poverty rate
16.8%4.4 points above the US average
Typical home value
$348,504up 40.5% in five years
Median rent
$72630% below the Montana median
Degree or higher
16.1%18.9 points below the US average
Homeownership
74.9%9.9 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
317

Where 59923 is

Libby, Montana — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population9,885
Median age54.4
Family households58.2%
Born outside the US3.3%
Speaks a language other than English at home5.2%
White (non-Hispanic)90%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0.2%
Hispanic or Latino3.1%
Veterans11.8%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$45,332
Income per person$30,202
Poverty rate16.8%
Households on SNAP or cash assistance17%

Household income distribution

Under $10k7.1%
$10–15k7.8%
$15–20k4.7%
$20–25k5.7%
$25–30k8.8%
$30–35k4.6%
$35–40k5.0%
$40–45k5.7%
$45–50k6.2%
$50–60k6.9%
$60–75k7.1%
$75–100k11.0%
$100–125k8.0%
$125–150k4.7%
$150–200k4.7%
$200k or more1.8%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed4,370
Mean adjusted gross income$61,532
Returns declaring $200,000 or more3.4%
Returns, under $25k34.6%
Returns, $25k–$50k24.0%
Returns, $50k–$75k14.4%
Returns, $75k–$100k10.3%
Returns, $100k–$200k13.3%
Returns, $200k or more3.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$241,400
Median gross rent$726
Rent as a share of household income28.7%
Owner-occupied74.9%
Vacant homes11.6%
Median year built1974

What the homes are

Detached house69.3%
Attached house2.8%
2 to 4 units6.5%
5 to 19 units3%
20 or more units1.7%
Mobile home14.7%
Boat, RV or van2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$348,504as of 2026-07
Typical home value, 1 yeardown 2.3%
Typical home value, 5 yearsup 40.5%
Typical home value, 10 yearsup 144.9%
Typical home value since 2000
200920172026$356,775$128,471

$130,035 in 2009 to $348,504 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.9%
Bachelor's degree or higher16.1%
High school diploma or higher93.2%
Works from home7.5%
Drives to work alone68.5%
Takes public transport0%
Commutes 45 minutes or more3.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity38% 4.6 pts above the national average of 33.4%
Diagnosed diabetes14% 2 pts above the national average of 12%
Currently smokes16.9% 3.7 pts above the national average of 13.2%
High blood pressure42.6% 8.5 pts above the national average of 34.1%
Fair or poor general health23.3% 3 pts above the national average of 20.3%
No health insurance (18–64)10.2% 1.1 pts below the national average of 11.3%
Depression24.8% 2.9 pts above the national average of 21.9%
No leisure-time physical activity26.8% 1.4 pts above the national average of 25.4%
Arthritis38.5% 13.4 pts above the national average of 25.1%
Binge drinking17.3% 1.3 pts above the national average of 16%
Taking blood pressure medication78.2% 3.5 pts above the national average of 74.7%
Cancer (non-skin)11.7% 4 pts above the national average of 7.7%
Current asthma11.6% 1.2 pts above the national average of 10.4%
Coronary heart disease9.8% 3.6 pts above the national average of 6.2%
Routine check-up in past year76.1% 0.6 pts below the national average of 76.7%
Cholesterol screening84.9% 1 pts below the national average of 85.9%
Cognitive disability15.6% 0.8 pts above the national average of 14.8%
Colorectal screening65.9% 1.6 pts above the national average of 64.3%
COPD10.8% 4.2 pts above the national average of 6.6%
Visited a dentist58% 3.3 pts below the national average of 61.3%
Any disability36.7% 6 pts above the national average of 30.7%
Lacks emotional support21.1% 3.7 pts below the national average of 24.8%
Food insecurity13.6% 3.5 pts below the national average of 17.1%
Received food stamps11.3% 3 pts below the national average of 14.3%
Hearing disability11.8% 5.1 pts above the national average of 6.7%
High cholesterol38.5% 2.3 pts above the national average of 36.2%
Housing insecurity9.8% 4 pts below the national average of 13.8%
Independent living disability10.1% 1.7 pts above the national average of 8.4%
Lacks transport8.1% 1.1 pts below the national average of 9.2%
Loneliness27% 7.4 pts below the national average of 34.4%
Mammography use70.9% 5 pts below the national average of 75.9%
Poor mental health (14+ days)17.2% same as the national average of 16.8%
Mobility disability18.7% 4.7 pts above the national average of 14%
Poor physical health (14+ days)17.7% 4.2 pts above the national average of 13.5%
Self-care disability5.1% 1.1 pts above the national average of 4%
Utility shut-off threat7.4% 1.4 pts below the national average of 8.8%
Sleeps under 7 hours35.2% 1.2 pts below the national average of 36.4%
Stroke5.1% 1.7 pts above the national average of 3.4%
All natural teeth lost17.1% 4.1 pts above the national average of 13%
Vision disability6.2% 0.6 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments317
People employed2,552
Annual payroll$93,773,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 97.7% of US census tracts
FEMA ratingRelatively Moderate to Very High across the 5 census tracts this ZIP code covers
Expected annual loss94.6 out of 100
Community resilience12.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather98.6Very High at its worst in this ZIP code
Wildfire98.5Very High at its worst in this ZIP code
Landslide98Relatively Moderate at its worst in this ZIP code
River flooding96.2Very High at its worst in this ZIP code
Cold wave93.8Relatively High at its worst in this ZIP code
Avalanche91.3Relatively Moderate at its worst in this ZIP code
Ice storm77.9Relatively Moderate at its worst in this ZIP code
Earthquake72.8Relatively Moderate at its worst in this ZIP code
Drought70.1Very Low at its worst in this ZIP code
Lightning61.2Relatively Moderate at its worst in this ZIP code
Heat wave47.2Relatively Low at its worst in this ZIP code
Strong wind46.2Relatively Low at its worst in this ZIP code
Hail29.3Very Low at its worst in this ZIP code
Tornado13.2Very Low at its worst in this ZIP code
Compared with Montana and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMontanaUnited States
Median household income$45,332$69,922$78,538
Income per person$30,202$39,842$43,289
Poverty rate16.8%12%12.4%
Median home value$241,400$338,100$303,400
Median gross rent$726$1,031$1,348
Homeownership74.9%69.4%65%
Bachelor's degree or higher16.1%34.5%35%
Unemployment rate4.9%3.8%5.2%
Works from home7.5%11.6%13.5%
Born outside the US3.3%2.3%13.9%
Median age54.440.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationLIBBY, MT US1.4 km away

Average high and low by month

January32.2°F / 21°F
February37.4°F / 21.2°F
March47.9°F / 26.5°F
April58.1°F / 31.2°F
May69.1°F / 39.5°F
June75.7°F / 45.5°F
July86.5°F / 49.2°F
August84.2°F / 48.2°F
September71.9°F / 40.1°F
October54.7°F / 32.3°F
November38.4°F / 27.1°F
December31.2°F / 21°F
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 5 school districts, so the address decides which one, not the ZIP code.

Libby K-12 Schools62.2% of this ZIP code's land area
Eureka Elementary School District15.3% of this ZIP code's land area
Lincoln County High School District15.3% of this ZIP code's land area
Troy High School District3.6% of this ZIP code's land area
Troy Elementary School District2.9% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability51more vulnerable than 51% of US census tracts
Socioeconomic status67more vulnerable than 67% of US census tracts
Household characteristics41more vulnerable than 41% of US census tracts
Racial and ethnic minority status9more vulnerable than 9% of US census tracts
Housing type and transport50more vulnerable than 50% of US census tracts
Walkability5.7 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

59935 Troy, MT27.7 km away
59853 Noxon, MT40.9 km away
59844 Heron, MT46.7 km away
83811 Clark Fork, ID53.6 km away
83836 Hope, ID56.7 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Lincoln County100% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area1412.52 sq mi
Water area6.67 sq mi
Population density7 people per sq mi
Latitude, longitude48.3773, -115.5391

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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