Mammoth, MT ZIP Codes

2 ZIP codes serve Mammoth, Montana: 59721 and 59747. Together they are home to 545 residents in 249 households. That is more than the 15 people counted inside Mammoth Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $80,250 in 59747 to $94,167 in 59721.

Mammoth Census-designated place

MeasureCensus figure
Residents15
Households8
Median household incomenot published
Median home valuenot published
Median agenot published
Median rentnot published

All 2 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)545
Households (sum of ZIP codes)249
Median household income, range across ZIP codes$80,250 (59747) to $94,167 (59721)
Household-weighted average of ZIP medians (an approximation, not a true median)$90,869
Homeowners77.9%
Households with kids under 1813.7%
Moved in the past year3.9%
Carrier routes in EDDM2GO's route librarynot loaded yet

Every ZIP code in Mammoth

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59721Cardwell423190$94,167$790,30074.7%15.3%3.1%——0% of its land
59747Pony12259$80,250$427,30088.1%8.5%6.7%——0% of its land

A ZIP code is listed for Mammoth when at least 10% of its land lies inside the Mammoth Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mammoth. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mammoth.

Counties

Price a mailing to Mammoth ZIP codes

EDDM guides

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Frequently asked questions

What ZIP codes are in Mammoth, MT?
59721 and 59747. A ZIP code is listed for Mammoth when at least 10% of its land lies inside the Mammoth Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mammoth.
What is the population of Mammoth, MT?
The Census Bureau counts 15 residents inside Mammoth Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Mammoth hold 545 residents in all.
What is the median household income in Mammoth, MT?
Across its ZIP codes the medians run from $80,250 to $94,167.

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