Blaine County, MT ZIP Codes

8 ZIP codes cover all or part of Blaine County, Montana: 59523, 59526, 59527, 59524, 59542, 59529, 59547 and 59535. The Census Bureau counts 6,949 residents in the county, with a median household income of $64,813 and a median home value of $155,500. Median household income ranges from $54,500 in 59527 to $73,906 in 59523. Its largest communities include Chinook, Fort Belknap Agency, Hays, Harlem and Turner Colony.

Blaine County (Census county figures)

MeasureCensus figure
Residents6,949
Households2,280
Median household income$64,813
Median home value$155,500
Median age35.6
Median rent$660

All 8 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)7,333
Households (sum of ZIP codes)2,443
Median household income, range across ZIP codes$54,500 (59527) to $73,906 (59523)
Household-weighted average of ZIP medians (an approximation, not a true median)$66,993
Homeowners66.8%
Households with kids under 1835.4%
Moved in the past year9.7%
Carrier routes in EDDM2GO's route library4 routes, 436 homes (3 of 8 ZIP codes)

Top facts

Every ZIP code in Blaine County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59523Chinook2,356911$73,906$218,30075.5%31.3%15.9%——99% of its land
59526Harlem2,319760$63,869$85,20058.0%40.4%7.1%1301100% of its land
59527Hays1,345314$54,500$80,80058.0%43.3%2.9%——100% of its land
59524Dodson643234$48,000$62,10079.1%25.6%12.6%210212% of its land
59542Turner442134$57,222$187,50068.7%40.3%10.6%15165% of its land
59529Hogeland14445$87,841$325,00062.2%28.9%4.9%——100% of its land
59547Zurich5129—$131,30048.3%13.8%0.0%——100% of its land
59535Blaine County3316——18.8%37.5%0.0%——100% of its land

A ZIP code is listed for Blaine 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 Blaine County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Blaine County, MT?
59523, 59526, 59527, 59524, 59542, 59529, 59547 and 59535. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Blaine County?
6,949 residents in 2,280 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Blaine County?
$64,813 for the county as a whole. Its ZIP codes range from $54,500 (59527) to $73,906 (59523).
Which Blaine County ZIP code has the highest median household income?
59523, at $73,906, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Blaine County?
For the 3 of 8 ZIP codes in EDDM2GO's stored route library: 4 carrier routes reaching 436 residential and 18 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.