59840 ZIP Code — Hamilton, MT

Ravalli County, Montana

ZIP code 59840 is located in Hamilton, Montana, within Ravalli County. It covers approximately 537.36 square miles and serves a population of 14,625 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 406.

About ZIP code 59840

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $355,700. Owner-occupancy sits near the national average at 69%.

Median household income is $62,576. 43% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 14 minutes is near the national average.

Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.

14,625

population

537.36

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

59840 ZIP code map

Cities in ZIP code 59840

Below are the cities the US Postal Service accepts for ZIP code 59840. Using any city not on this list may result in mail delivery delays.

City	Status
Hamilton	Acceptable
Hamilton	Preferred

Nearby ZIP codes

59828 Corvallis (14.6 mi) 59875 Victor (17.3 mi)

Demographics updated 06/2026

Population
Total population	14,625
Population density	27 / sq mi
State FIPS	30
County FIPS	081

Geography
Land area	537.36 sq mi
Water area	1.61 sq mi
Latitude	46.1701
Longitude	-114.1384
Timezone	Mountain (MT)
Area code	406

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	50.9%	45.4%	44.2%
$50k – $100k	33.9%	32.9%	32.0%
$100k – $200k	12.6%	17.2%	19.2%
Over $200k	2.5%	4.6%	4.7%

Demographics & statistics

14,625

Population

People per sq mi

49.0

Median age

$62,576

Median household income

$35,995

Per capita income

$355,700

Median home value

$936

Median monthly rent

69.4%

Home ownership

10.4%

Poverty rate

2.1%

Unemployment

5,228

Housing units

29.7%

Bachelor's or higher

Age distribution

Male Female

319

Under 5

372

204

5–9

237

420

10–14

490

344

15–19

400

217

20–24

252

651

25–34

759

930

35–44

1,084

788

45–54

918

435

55–59

507

643

60–64

750

992

65–74

1,157

516

75–84

601

295

85+

344

← Male

Female →

Age summary

Group	Count	%
Under 18	2,569	17.6%
18 and over	12,056	82.4%
65 and over	3,905	26.7%
Median age	49.0 years

Race & ethnicity

White 90.1%

Two or more races 5.6%

Hispanic or Latino 3.6%

Asian 0.4%

American Indian / Alaska Native 0.3%

Other race 0.1%

Group	Count	%
White	13,668	90.1%
Two or more races	850	5.6%
Hispanic or Latino	548	3.6%
Asian	56	0.4%
American Indian / Alaska Native	39	0.3%
Other race	12	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	50.9%	45.4%	44.2%
$50k – $100k	33.9%	32.9%	32.0%
$100k – $200k	12.6%	17.2%	19.2%
Over $200k	2.5%	4.6%	4.7%

Under $10k 4.9%

$10k–$15k 5.2%

$15k–$25k 8.7%

$25k–$35k 13.3%

$35k–$50k 9.5%

$50k–$75k 20.2%

$75k–$100k 15.3%

$100k–$150k 12.3%

$150k–$200k 5.8%

$200k+ 4.9%

Range	% of households
Under $10k	4.9%
$10k–$15k	5.2%
$15k–$25k	8.7%
$25k–$35k	13.3%
$35k–$50k	9.5%
$50k–$75k	20.2%
$75k–$100k	15.3%
$100k–$150k	12.3%
$150k–$200k	5.8%
$200k+	4.9%
Median income	$62,576

Housing

Home values

Under $50k 3.3%

$50k–$100k 2.3%

$100k–$150k 1.8%

$150k–$200k 7.8%

$200k–$300k 22.7%

$300k–$500k 34.8%

$500k–$1M 19.0%

$1M+ 8.3%

Housing overview

Metric	Value
Median home value	$355,700
Median rent / month	$936
Owner occupied	69.4%
Renter occupied	30.6%
Vacant	9.4%
Single-family detached	72.7%
Large apartment buildings	4.6%
Mobile homes	5.4%
Median rooms	5.3
Avg household size (owned)	2.33

Year built

Era	%
2020 or later	0.8%
2010–2019	7.0%
2000–2009	14.6%
1990–1999	17.2%
1980–1989	10.0%
1970–1979	14.5%
1960–1969	7.9%
1950–1959	6.6%
1940–1949	3.5%
1939 or earlier	17.9%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	12.9%
2 bedrooms	27.4%
3 bedrooms	47.1%
4 bedrooms	7.4%
5+ bedrooms	3.7%

Vehicles per household

Vehicles	% of households
No vehicle	8.6%
1 vehicle	31.3%
2 vehicles	33.0%
3 or more	27.2%

Heating fuel

Fuel type	%
Utility gas	52.7%
Electricity	19.9%
Propane / LP gas	14.0%
Fuel oil	0.4%
Wood	11.9%
Solar	0.4%

Households & families

Household type	Count	%
Married-couple family	3,311	50.5%
Cohabiting couple	350	5.3%
Male householder, no spouse	832	12.7%
Female householder, no spouse	2,061	31.4%
Households with children under 18	1,454	22.2%
Households with seniors (65+)	2,903	44.3%
Average household size	2.19

Marital status

Status	Male	Female
Never married	23.0%	19.8%
Married	63.2%	50.6%
Separated	0.7%	0.5%
Widowed	2.7%	12.8%
Divorced	10.5%	16.3%

Education

Less than 9th grade 1.1%

Some HS, no diploma 6.4%

HS graduate 26.8%

Some college, no degree 22.5%

Associate's degree 13.5%

Bachelor's degree 16.5%

Graduate / professional 13.2%

Metric	%
HS diploma or higher	92.5%
Bachelor's or higher	29.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	88	3.7%
Kindergarten	133	5.6%
Elementary school	1,113	46.8%
High school	666	28.0%
College / grad school	379	15.9%

Employment

Industry of employment

Education & healthcare 24.7%

Professional & management 11.0%

Retail trade 10.4%

Arts, food & hospitality 8.2%

Construction 8.0%

Other services 7.8%

Finance & real estate 7.4%

Manufacturing 6.0%

Transportation & utilities 5.3%

Agriculture & mining 4.7%

Public administration 2.4%

Wholesale trade 2.1%

Information 2.0%

Occupation

Category	%
Management, business & arts	36.4%
Service	16.6%
Sales & office	25.8%
Natural resources & construction	11.6%
Production & transportation	9.6%

Employment type

Type	%
Private sector	71.4%
Government	13.6%
Self-employed	14.7%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	74.2%
Carpool	10.4%
Public transit	0.3%
Walk	5.0%
Work from home	7.5%
Other means	2.5%
Avg commute (minutes)	13.8

Poverty

All people 10.4%

Under 18 years 10.1%

18 and over 10.5%

Married-couple families 0.6%

Female-led households 31.4%

Income support

Source	% of households
Social Security	43.1%
Retirement income	27.8%
Supplemental Security	5.2%
Cash public assistance	4.5%
Food stamps / SNAP	9.5%

Health indicators

Condition	%
Obesity	30.7%
High blood pressure	34.0%
High cholesterol	35.8%
Diabetes	11.4%
Heart disease	8.6%
Stroke	4.0%
Asthma	10.1%
Arthritis	32.4%
Kidney disease	3.7%
Pulmonary disease	8.7%
Cancer	8.6%

Behavior / access	%
Smoking	17.7%
Binge drinking	18.2%
No physical activity	21.6%
Less than 7 hrs sleep	31.6%
Depression	23.3%
Fair or poor health	15.3%
Poor mental health	13.0%
Poor physical health	12.5%
No health insurance	12.6%
Visited doctor (checkup)	72.4%
Visited dentist	60.3%
Cholesterol screening	89.3%
Teeth loss	14.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,016	8.4%

Disability	%
Any disability	17.9%
Under 18	3.9%
18–64 years	13.1%
65 and over	37.6%

Health insurance coverage

Type	%
Private insurance	56.5%
Public insurance	50.1%
No insurance	11.5%
Uninsured under 19	7.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,934	95.3%
Spanish	74	0.5%
Other Indo-European	58	0.4%
Asian & Pacific Islander	16	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	14,085	96.3%
Born in same state	13,836	94.6%
Born in different state	5,143	35.2%
Foreign born	249	1.7%
Naturalized citizen	540	3.7%
Not a US citizen	385	71.3%

Ancestry

Ancestry	Count	%
French	2,195	15%
Italian	1,477	10.1%
Polish	866	5.9%
Arab	603	4.1%
English	310	2.1%

Ancestry	Count	%
Dutch	275	1.9%
German	247	1.7%
Irish	70	0.5%
Norwegian	22	0.2%

Technology access

Metric	% of households
Computer access	44.8%
Internet access	93.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 59840

What city is ZIP code 59840 in?

ZIP code 59840 is primarily assigned to Hamilton, Montana.

What county is ZIP code 59840 in?

ZIP code 59840 falls within Ravalli County, Montana.

Does ZIP code 59840 have an older population?

27% of residents in ZIP code 59840 are 65 or older, above the national average of ~17%.

Does ZIP code 59840 have a large retiree population?

43% of households in ZIP code 59840 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 59840?

The median home value in ZIP code 59840 is $355,700.

What is the population of ZIP code 59840?

ZIP code 59840 has an estimated population of 14,625 residents, with a density of 27 people per square mile.

What timezone is ZIP code 59840 in?

ZIP code 59840 observes the MST timezone.