Postal Codes

59840 ZIP Code

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ZIP code 59840 covers Hamilton, Montana, with a population of about 14,775 and a median household income of $64,493.

Population
14,77527 per square mile
Median age
49.110.4 points above the US average
Median household income
$64,4938% below the Montana median
Poverty rate
10.2%2.2 points below the US average
Typical home value
$538,415up 21.6% in five years
Median rent
$1,054about the Montana median
Degree or higher
33%2 points below the US average
Homeownership
68.9%3.9 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
743

Where 59840 is

Hamilton, 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

Population14,775
Median age49.1
Family households62%
Born outside the US4.3%
Speaks a language other than English at home4.2%
White (non-Hispanic)91.8%
Black (non-Hispanic)0%
Asian (non-Hispanic)0.3%
Hispanic or Latino3.3%
Veterans8.9%
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$64,493
Income per person$37,625
Poverty rate10.2%
Households on SNAP or cash assistance11.6%

Household income distribution

Under $10k4.7%
$10–15k4.0%
$15–20k3.2%
$20–25k5.0%
$25–30k6.0%
$30–35k5.9%
$35–40k5.0%
$40–45k2.7%
$45–50k4.7%
$50–60k6.8%
$60–75k13.0%
$75–100k12.9%
$100–125k8.2%
$125–150k5.0%
$150–200k7.4%
$200k or more5.6%

Income as declared to the IRS

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

Tax returns filed7,420
Mean adjusted gross income$84,816
Returns declaring $200,000 or more6.6%
Returns, under $25k30.1%
Returns, $25k–$50k23.3%
Returns, $50k–$75k15.2%
Returns, $75k–$100k9.8%
Returns, $100k–$200k15.0%
Returns, $200k or more6.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$398,800
Median gross rent$1,054
Rent as a share of household income29.8%
Owner-occupied68.9%
Vacant homes11.3%
Median year built1983

What the homes are

Detached house73.3%
Attached house3.3%
2 to 4 units8.8%
5 to 19 units4.3%
20 or more units3.9%
Mobile home6.3%
Boat, RV or van0.1%
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$538,415as of 2026-07
Typical home value, 1 yearup 0.1%
Typical home value, 5 yearsup 21.6%
Typical home value, 10 yearsup 125.5%
Typical home value since 2000
200920172026$553,644$185,966

$199,488 in 2009 to $538,415 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1%
Bachelor's degree or higher33%
High school diploma or higher93%
Works from home8.3%
Drives to work alone72.7%
Takes public transport0.3%
Commutes 45 minutes or more6.1%
Health

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

Obesity31.9% 1.5 pts below the national average of 33.4%
Diagnosed diabetes11.1% 0.9 pts below the national average of 12%
Currently smokes12.7% 0.5 pts below the national average of 13.2%
High blood pressure36.3% 2.2 pts above the national average of 34.1%
Fair or poor general health19.4% 0.9 pts below the national average of 20.3%
No health insurance (18–64)9.2% 2.1 pts below the national average of 11.3%
Depression22.2% same as the national average of 21.9%
No leisure-time physical activity21.4% 4 pts below the national average of 25.4%
Arthritis35.1% 10 pts above the national average of 25.1%
Binge drinking17.3% 1.3 pts above the national average of 16%
Taking blood pressure medication77.7% 3 pts above the national average of 74.7%
Cancer (non-skin)12.1% 4.4 pts above the national average of 7.7%
Current asthma10.7% same as the national average of 10.4%
Coronary heart disease8.3% 2.1 pts above the national average of 6.2%
Routine check-up in past year75.2% 1.5 pts below the national average of 76.7%
Cholesterol screening86.4% 0.5 pts above the national average of 85.9%
Cognitive disability13.4% 1.4 pts below the national average of 14.8%
Colorectal screening67.5% 3.2 pts above the national average of 64.3%
COPD8.3% 1.7 pts above the national average of 6.6%
Visited a dentist65.1% 3.8 pts above the national average of 61.3%
Any disability35.4% 4.7 pts above the national average of 30.7%
Lacks emotional support20.4% 4.4 pts below the national average of 24.8%
Food insecurity10% 7.1 pts below the national average of 17.1%
Received food stamps7.2% 7.1 pts below the national average of 14.3%
Hearing disability10.5% 3.8 pts above the national average of 6.7%
High cholesterol36.9% 0.7 pts above the national average of 36.2%
Housing insecurity7.6% 6.2 pts below the national average of 13.8%
Independent living disability8.2% same as the national average of 8.4%
Lacks transport6.3% 2.9 pts below the national average of 9.2%
Loneliness29.5% 4.9 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)15.1% 1.7 pts below the national average of 16.8%
Mobility disability16.1% 2.1 pts above the national average of 14%
Poor physical health (14+ days)15.4% 1.9 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Utility shut-off threat5.4% 3.4 pts below the national average of 8.8%
Sleeps under 7 hours30.2% 6.2 pts below the national average of 36.4%
Stroke4.3% 0.9 pts above the national average of 3.4%
All natural teeth lost12.6% same as the national average of 13%
Vision disability4.9% 0.7 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments743
People employed5,883
Annual payroll$277,695,000
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 87% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 7 census tracts this ZIP code covers
Expected annual loss84.1 out of 100
Community resilience23 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.

Wildfire99.1Very High at its worst in this ZIP code
Landslide95.6Relatively Moderate at its worst in this ZIP code
Winter weather88.6Very High at its worst in this ZIP code
Cold wave87.1Very High at its worst in this ZIP code
Avalanche83.1Relatively Moderate at its worst in this ZIP code
Ice storm78.8Relatively High at its worst in this ZIP code
Lightning66.7Relatively High at its worst in this ZIP code
Drought49.8Relatively Low at its worst in this ZIP code
Hail45.6Relatively Low at its worst in this ZIP code
Earthquake34Relatively Moderate at its worst in this ZIP code
River flooding25.4Relatively Moderate at its worst in this ZIP code
Strong wind23.1Relatively Low at its worst in this ZIP code
Heat wave22.8Relatively Moderate at its worst in this ZIP code
Tornado6.7Very 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$64,493$69,922$78,538
Income per person$37,625$39,842$43,289
Poverty rate10.2%12%12.4%
Median home value$398,800$338,100$303,400
Median gross rent$1,054$1,031$1,348
Homeownership68.9%69.4%65%
Bachelor's degree or higher33%34.5%35%
Unemployment rate1%3.8%5.2%
Works from home8.3%11.6%13.5%
Born outside the US4.3%2.3%13.9%
Median age49.140.238.7
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 stationHAMILTON, MT US0.7 km away
Rain in a year14 in

Average high and low by month

January35.1°F / 18.9°F0.96 in rain
February39.2°F / 19.5°F1.18 in rain
March48.9°F / 24.6°F0.98 in rain
April56.1°F / 30.7°F1.12 in rain
May65.5°F / 38.2°F1.53 in rain
June73°F / 44.7°F1.65 in rain
July84°F / 49.7°F0.85 in rain
August82.4°F / 47.7°F0.8 in rain
September71.9°F / 40.4°F0.81 in rain
October56.8°F / 30.9°F0.94 in rain
November42.6°F / 23.2°F1.45 in rain
December33.5°F / 17.9°F1.33 in rain
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 supermarket33% of this ZIP code's area
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 3 school districts, so the address decides which one, not the ZIP code.

Hamilton K-12 Schools51.3% of this ZIP code's land area
Darby K-12 Schools32.7% of this ZIP code's land area
Corvallis K-12 Schools16% 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 vulnerability13more vulnerable than 13% of US census tracts
Socioeconomic status24more vulnerable than 24% of US census tracts
Household characteristics26more vulnerable than 26% of US census tracts
Racial and ethnic minority status8more vulnerable than 8% of US census tracts
Housing type and transport14more vulnerable than 14% of US census tracts
Walkability7 out of 20Below average
Nearby ZIP codes

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

59835 Grantsdale, MT4.5 km away
59828 Corvallis, MT10 km away
59841 Pinesdale, MT11.2 km away
59875 Victor, MT17.9 km away
59829 Darby, MT23.6 km away
59870 Stevensville, MT33.2 km away
59827 Conner, MT36.6 km away
59833 Florence, MT43.9 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.

Ravalli County100% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area537.39 sq mi
Water area1.57 sq mi
Population density27 people per sq mi
Latitude, longitude46.2395, -114.1679

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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