Liberty County, MT ZIP Codes

6 ZIP codes cover all or part of Liberty County, Montana: 59522, 59456, 59531, 59444, 59545 and 59461. The Census Bureau counts 1,952 residents in the county, with a median household income of $57,857 and a median home value of $169,100. Its largest communities include Chester, Joplin, Riverview Colony, Camrose Colony and Sage Creek Colony.

Liberty County (Census county figures)

MeasureCensus figure
Residents1,952
Households724
Median household income$57,857
Median home value$169,100
Median age39.8
Median rent$710

All 6 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)2,358
Households (sum of ZIP codes)881
Median household income, range across ZIP codes$57,212 (59522) to $57,212 (59522)
Household-weighted average of ZIP medians (an approximation, not a true median)$57,212
Homeowners57.0%
Households with kids under 1824.9%
Moved in the past year12.8%
Carrier routes in EDDM2GO's route library5 routes, 223 homes (3 of 6 ZIP codes)

Every ZIP code in Liberty County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59522Chester1,315493$57,212$177,10056.4%22.5%11.8%3100100% of its land
59456Ledger392133$41,123—27.1%30.1%26.6%18552% of its land
59531Joplin351129$67,891$110,00083.7%35.7%3.1%——73% of its land
59444Eagle Creek Colony22288$44,250—51.1%20.5%9.9%14420% of its land
59545Whitlash5527$100,781$291,700100.0%14.8%18.2%——68% of its land
59461Liberty County2311——72.7%0.0%0.0%——100% of its land

A ZIP code is listed for Liberty County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Price a mailing to Liberty County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Liberty County, MT?
59522, 59456, 59531, 59444, 59545 and 59461. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Liberty County?
1,952 residents in 724 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Liberty County?
$57,857 for the county as a whole. Its ZIP codes range from $57,212 (59522) to $57,212 (59522).
How many carrier routes and mailboxes are in Liberty County?
For the 3 of 6 ZIP codes in EDDM2GO's stored route library: 5 carrier routes reaching 223 residential and 6 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.