Joplin ZIP Code List — Liberty County, MT

There is one unique ZIP code in Joplin, Montana and it is 59531. Area code: 406.

ZIP codes

267.69

sq mi land

0.15

sq mi water

406

area code

Joplin, MT ZIP code map

About Joplin, MT

Joplin is a small city located in the state of Montana, known for its tranquil atmosphere and close-knit community. This charming city is situated in Liberty County, offering residents and visitors a peaceful environment surrounded by the natural beauty of the state. With a single ZIP code, 59531, Joplin represents a unique pocket of life in the expansive Montana landscape.

Location & geography

Joplin is located in north-central Montana and is surrounded by the vast plains typical of the region. Nearby cities include Chester, which is approximately 30 miles to the south, Hingham 18 miles to the southeast, and Shelby located about 40 miles to the northwest. The terrain is primarily land, encompassing 267.69 square miles, with a minor water area of 0.15 square miles.

Community & economy

The character of Joplin reflects the quintessential small-town American spirit, with a strong emphasis on community values and friendly interactions. The local economy is likely rooted in agriculture and small businesses, contributing to a resilient and hardworking atmosphere. Daily life in Joplin includes various community events and gatherings, reinforcing the tight bonds among residents.

Transportation

Joplin is accessible via U.S. Highway 2, making travel to nearby cities relatively straightforward. The nearest major airport is located in Havre, approximately 60 miles to the south, providing regional connectivity for residents and visitors.

History

Joplin was founded in the early 1900s, growing as a small agricultural community in Liberty County. Historically, the area has focused on ranching and farming, supporting both local livelihoods and the region's economy. Notable events include the city's development alongside the expansion of transportation networks in Montana.

Did you know?

A lesser-known fact about Joplin is its commitment to preserving the rural Montana culture through local traditions. The city also hosts annual events that celebrate its agricultural roots, appealing to both residents and visitors alike.

ZIP codes for Joplin, MT (1)

ZIP code	City	County	Map
59531	Joplin	Liberty	View map

Demographics & statistics

385

Population

36.2

Median age

$48,500

Median household income

$52,890

Per capita income

$101,700

Median home value

Median monthly rent

85.7%

Home ownership

21.8%

Poverty rate

0.0%

Unemployment

186

Housing units

15.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	136	35.3%
18 and over	249	64.7%
65 and over	43	11.2%
Median age	36.2 years

Race & ethnicity

White 96.4%

Hispanic or Latino 1.8%

Other race 1.8%

Group	Count	%
White	378	96.4%
Hispanic or Latino	7	1.8%
Other race	7	1.8%

Household income

Under $10k 6.4%

$15k–$25k 4.3%

$25k–$35k 14.3%

$35k–$50k 27.1%

$50k–$75k 20.0%

$75k–$100k 4.3%

$100k–$150k 11.4%

$200k+ 12.1%

Range	% of households
Under $10k	6.4%
$15k–$25k	4.3%
$25k–$35k	14.3%
$35k–$50k	27.1%
$50k–$75k	20.0%
$75k–$100k	4.3%
$100k–$150k	11.4%
$200k+	12.1%
Median income	$48,500

Housing

Home values

Under $50k 30.0%

$50k–$100k 19.2%

$100k–$150k 12.5%

$150k–$200k 16.7%

$200k–$300k 21.7%

Housing overview

Metric	Value
Median home value	$101,700
Median rent / month	$0
Owner occupied	85.7%
Renter occupied	14.3%
Vacant	32.0%
Single-family detached	80.1%
Large apartment buildings	0.0%
Mobile homes	19.9%
Median rooms	6.2
Avg household size (owned)	3.04

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	7.3%
1990–1999	3.9%
1980–1989	6.8%
1970–1979	20.9%
1960–1969	9.2%
1950–1959	22.3%
1940–1949	0.0%
1939 or earlier	29.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	1.5%
2 bedrooms	31.6%
3 bedrooms	49.5%
4 bedrooms	6.3%
5+ bedrooms	11.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	40.0%
2 vehicles	23.6%
3 or more	36.4%

Heating fuel

Fuel type	%
Utility gas	51.4%
Electricity	17.1%
Propane / LP gas	26.4%

Households & families

Household type	Count	%
Married-couple family	57	40.7%
Cohabiting couple	5	3.6%
Male householder, no spouse	43	30.7%
Female householder, no spouse	35	25.0%
Households with children under 18	63	45.0%
Households with seniors (65+)	37	26.4%
Average household size	2.75

Marital status

Status	Male	Female
Never married	43.5%	11.1%
Married	42.2%	56.5%
Separated	2.5%	0.0%
Widowed	0.0%	10.2%
Divorced	11.8%	22.2%

Education

Less than 9th grade 1.8%

Some HS, no diploma 11.0%

HS graduate 24.2%

Some college, no degree 37.4%

Associate's degree 10.6%

Bachelor's degree 11.9%

Graduate / professional 3.1%

Metric	%
HS diploma or higher	87.2%
Bachelor's or higher	15.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	3.8%
Kindergarten	10	9.4%
Elementary school	71	67.0%
High school	21	19.8%
College / grad school	0	0.0%

Employment

Industry of employment

Retail trade 33.1%

Education & healthcare 30.6%

Agriculture & mining 22.3%

Construction 8.9%

Transportation & utilities 2.5%

Arts, food & hospitality 1.9%

Professional & management 0.6%

Occupation

Category	%
Management, business & arts	53.5%
Service	10.8%
Sales & office	10.8%
Natural resources & construction	13.4%
Production & transportation	11.5%

Employment type

Type	%
Private sector	80.3%
Government	0.0%
Self-employed	19.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.8%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Other means	4.5%
Avg commute (minutes)	16.8

Poverty

All people 21.8%

Under 18 years 51.5%

18 and over 5.6%

Married-couple families 0.0%

Female-led households 19.2%

Income support

Source	% of households
Social Security	27.1%
Retirement income	12.9%
Supplemental Security	4.3%
Cash public assistance	0.0%
Food stamps / SNAP	5.0%

Health indicators

Condition	%
High blood pressure	38.4%
High cholesterol	36.1%
Heart disease	10.4%
Stroke	5.1%
Asthma	11.1%
Arthritis	36.0%
Kidney disease	4.4%
Pulmonary disease	11.6%
Cancer	9.2%

Behavior / access	%
Binge drinking	17.4%
No physical activity	27.2%
Less than 7 hrs sleep	30.8%
Fair or poor health	20.2%
Poor mental health	13.6%
Poor physical health	15.2%
No health insurance	15.0%
Visited doctor (checkup)	72.1%
Visited dentist	56.0%
Cholesterol screening	89.1%
Teeth loss	20.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	11	4.4%

Disability	%
Any disability	19.7%
Under 18	5.1%
18–64 years	25.7%
65 and over	37.2%

Health insurance coverage

Type	%
Private insurance	39.2%
Public insurance	59.7%
Uninsured under 19	2.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	358	93.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	385	100.0%
Born in same state	385	100.0%
Born in different state	305	79.2%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	52	13.5%
Arab	30	7.8%
Italian	24	6.2%

Ancestry	Count	%
English	16	4.2%
French	16	4.2%

Technology access

Metric	% of households
Computer access	36.4%
Internet access	91.4%

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

Frequently asked questions

What is the ZIP code for Joplin, MT?

Joplin, MT has one ZIP code: 59531.

What is the main ZIP code for Joplin, MT?

The primary ZIP code for Joplin, MT is 59531. The city uses area code 406 for phone service.

What county is Joplin, MT in?

Joplin is located in Liberty County, Montana.

How many ZIP codes are in Joplin, MT?

Joplin, MT has 1 ZIP code.

What is the ZIP code for downtown Joplin, Montana?

Downtown Joplin, Montana is located in ZIP code 59531, which serves as the primary commercial and civic center for this Liberty County community.

What ZIP code should I use for mailing addresses in Joplin, MT?

All mailing addresses in Joplin, Montana use the single ZIP code 59531, as this is the only ZIP code designated for this town.