ZIP Code 59531
About Joplin
Joplin is an unincorporated community and census-designated place (CDP) in Liberty County, Montana, United States. As of the 2020 census, Joplin had a population of 159.
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Area Profile
US Census (ACS 5-year · Gazetteer)
409
population
$52,321
median household income
2
people / sq mi
$102,400
median home value
31.1
median age
193
housing units
135
households
267.7
land area (sq mi)