Eureka, MT Profile: Facts, Map & Data


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Eureka, Montana - Basic Facts

The Town of Eureka had a population of 947 as of July 1, 2017. Eureka ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Montana. See peer rankings below.

The primary coordinate point for Eureka is located at latitude 48.8763 and longitude -115.0476 in Lincoln County. The formal boundaries for the Town of Eureka (see map below) encompass a land area of 1.02 sq. miles and a water area of 0 sq. miles. Lincoln County is in the Mountain time zone (GMT -7). The elevation is 2,582 feet.

The Town of Eureka (GNIS ID: 2412605) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Montana is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Town of Eureka is located within Eureka Division of Lincoln County.

Beneath the boundary map are tables with Eureka population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Eureka: Dewey, Deweyville.

Neighborhood Data

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Town of Eureka, MT Boundary Map

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Boundary Maps: Eureka Division | Lincoln County | Montana Counties

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Eureka, MT Data & Demographics (As of July 1, 2017)


Total Population 947
Daytime Population: Workers 669
Daytime Population: Residents 582
Total Daytime Population (TDP) 1,251
Ratio TDP/Total Population1 1.32
Population in Households 915
Population in Familes 682
Population in Group Qrtrs 32
Population Density2 928
Diversity Index3 21


Median Household Income $27,857
Average Household Income $41,444
Per Capita Income $17,925


Total Housing Units 496 (100%)
Owner Occupied HU 237 (47.8%)
Renter Occupied HU 162 (32.7%)
Vacant Housing Units 97 (19.6%)
Median Home Value $153,723
Average Home Value $182,911


Total Households 399
Average Household Size 2.29
Family Households 224
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -1.24% -0.64%
Households -1.4% -0.71%
Families -2.09% -1.1%
Median Household Income   0.6%
Per Capita Income   2.49%

Eureka, MT - Peer Comparisons by Rank and Percentile

The table below compares Eureka to the other 364 incorporated cities, towns and CDPs in Montana by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 94 74th
Population Density # 78 79th
Diversity Index # 107 71st
Median Household Income # 354 3rd
Per Capita Income # 335 8th

Additional comparisons and rankings can be made with a VERY EASY TO USE Montana Census Data Comparison Tool.

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