Mammoth, WY Profile: Facts, Map & Data


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Mammoth, Wyoming - Basic Facts

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The Mammoth Census Designated Place had a population of 259 as of July 1, 2017. Mammoth ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Wyoming. See peer rankings below.

The primary coordinate point for Mammoth is located at latitude 44.9732 and longitude -110.6929 in Park County. The formal boundaries for the Mammoth Census Designated Place (see map below) encompass a land area of 0.79 sq. miles and a water area of 0 sq. miles. Park County is in the Mountain time zone (GMT -7). The elevation is 6,250 feet.

The Mammoth Census Designated Place (GNIS ID: 2585082) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Wyoming is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Mammoth Census Designated Place is located within Yellowstone National Park Division of Park County.

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

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Mammoth Census Designated Place, WY Boundary Map

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Mammoth, WY Data & Demographics (As of July 1, 2017)


Total Population 259
Daytime Population: Workers 44
Daytime Population: Residents 80
Total Daytime Population (TDP) 124
Ratio TDP/Total Population1 0.48
Population in Households 250
Population in Familes 199
Population in Group Qrtrs 9
Population Density2 329
Diversity Index3 15


Median Household Income $56,105
Average Household Income $78,750
Per Capita Income $36,824


Total Housing Units 136 (100%)
Owner Occupied HU 59 (43.4%)
Renter Occupied HU 37 (27.2%)
Vacant Housing Units 40 (29.4%)
Median Home Value $320,000
Average Home Value $435,417


Total Households 96
Average Household Size 2.6
Family Households 62
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.


2010-2017 2017-2022
Population -0.21% 1.86%
Households 0.0% 1.81%
Families 0.92% 1.86%
Median Household Income   2.51%
Per Capita Income   2.77%

Mammoth, WY - Peer Comparisons by Rank and Percentile

The table below compares Mammoth to the other 204 incorporated cities, towns and CDPs in Wyoming 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 # 118 43rd
Population Density # 90 56th
Diversity Index # 164 20th
Median Household Income # 127 38th
Per Capita Income # 43 79th

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

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