Eureka, MT ZIP Codes

One ZIP code serves Eureka, Montana: 59917. Together they are home to 4,920 residents in 1,969 households. That is more than the 1,840 people counted inside Eureka town limits, because these ZIP codes reach past its boundary.

Eureka town limits (Census)

MeasureCensus figure
Residents1,840
Households610
Median household income$38,750
Median home value$172,000
Median age42.4
Median rent$1,038

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)4,920
Households (sum of ZIP codes)1,969
Median household income, range across ZIP codes$50,139 (59917) to $50,139 (59917)
Household-weighted average of ZIP medians (an approximation, not a true median)$50,139
Homeowners89.3%
Households with kids under 1818.4%
Moved in the past year9.8%
Carrier routes in EDDM2GO's route librarynot loaded yet

Every ZIP code in Eureka

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
59917Eureka4,9201,969$50,139$360,10089.3%18.4%9.8%——1% of its land; mailing city

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

Counties

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EDDM guides

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Frequently asked questions

What ZIP codes are in Eureka, MT?
59917. A ZIP code is listed for Eureka when at least 10% of its land lies inside Eureka town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Eureka.
What is the population of Eureka, MT?
The Census Bureau counts 1,840 residents inside Eureka town limits (ACS 2020–2024). The 1 ZIP code that serve Eureka hold 4,920 residents in all.
What is the median household income in Eureka, MT?
$38,750 inside Eureka town limits, per the Census Bureau. Across its ZIP codes the medians run from $50,139 to $50,139.

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