Richland County, MT ZIP Codes

9 ZIP codes cover all or part of Richland County, Montana. The Census Bureau counts 11,235 residents in the county, with a median household income of $73,084 and a median home value of $263,000. Median household income ranges from $45,379 in 59255 to $77,115 in 59221. Its largest communities include Sidney, Fairview, Savage, Crane and Fox Lake.

Richland County (Census county figures)

MeasureCensus figure
Residents11,235
Households4,422
Median household income$73,084
Median home value$263,000
Median age38.4
Median rent$917

All 9 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)16,960
Households (sum of ZIP codes)6,219
Median household income, range across ZIP codes$45,379 (59255) to $77,115 (59221)
Household-weighted average of ZIP medians (an approximation, not a true median)$69,422
Homeowners68.1%
Households with kids under 1829.4%
Moved in the past year7.5%
Carrier routes in EDDM2GO's route library11 routes, 3,856 homes (3 of 9 ZIP codes)

Top facts

Every ZIP code in Richland County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59270Sidney8,5713,420$72,630$267,60063.8%26.6%9.4%83,98560% of its land
59255Poplar3,083734$45,379$91,80064.7%43.6%4.7%——19% of its land
59221Fairview1,951868$77,115$243,60081.2%25.5%8.2%——85% of its land
59218Culbertson898320$98,833$248,20070.3%32.8%3.9%29150% of its land
59213Brockton758248$63,125$85,00077.4%29.8%0.0%——44% of its land
59262Savage737298$76,000$278,30067.1%18.1%16.0%115457% of its land
59243Lambert446148$83,500$335,40065.5%44.6%0.0%——100% of its land
59259Richey345137$83,393$130,40081.0%26.3%3.6%——46% of its land
59217Crane17146$79,242$224,200100.0%87.0%0.0%——100% of its land

A ZIP code is listed for Richland 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 Richland County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Richland County, MT?
59270, 59255, 59221, 59218, 59213, 59262, 59243, 59259 and 59217. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Richland County?
11,235 residents in 4,422 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Richland County?
$73,084 for the county as a whole. Its ZIP codes range from $45,379 (59255) to $77,115 (59221).
Which Richland County ZIP code has the highest median household income?
59221, at $77,115, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Richland County?
For the 3 of 9 ZIP codes in EDDM2GO's stored route library: 11 carrier routes reaching 3,856 residential and 373 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.