Mammoth Flag

Mammoth

County Seat:
No
Area (mi²):
2.022
State:
Pennsylvania

Mammoth is a CDP located in Westmoreland County, Pennsylvania. Mammoth has a 2025 population of 357. Mammoth is currently declining at a rate of -3.25% annually and its population has decreased by -16.59% since the most recent census, which recorded a population of 428 in 2020.

The average household income in Mammoth is $68,793 with a poverty rate of 13.3%.The median age in Mammoth is 64.1 years: 62.4 years for males, and 69.8 years for females.

357
Total Population
177
Density (mi²)
-12 -3.25%
Growth

Mammoth Population

Mammoth Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Mammoth includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White421100%

Mammoth Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mammoth's average per capita income is $53,519. Household income levels show a median of $47,708. The poverty rate stands at 13.3%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$51,307-
Households$47,708$68,793
Families$37,196$46,185
Non Families-$99,601

$53,519

Average Income

$47,708

Median Household Income

13.3%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)