Mammoth Flag

Mammoth

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

Mammoth is a CDP located in Westmoreland County, Pennsylvania. Mammoth has a 2026 population of 397. Mammoth is currently declining at a rate of -1.98% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Mammoth is $39,219 with a poverty rate of 18.23%. The median age in Mammoth is 66.4 years: 62.9 years for males, and 70 years for females. For every 100 females there are 89.3 males.

397
Total Population
196
Density (mi²)
-8 -1.98%
Growth

Mammoth Population

Mammoth Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026397-8-1.98%
2025405-8-1.94%

Median Age

Overall: 66.4 years
Female: 70 years
Male: 62.9 years

Mammoth Adults

There are 337 adults, (193 of whom are seniors) in Mammoth.

Sex Ratio

Female: 197 (52.8%)
Male: 176 (47.2%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White373100%
Race
Population ↓
Percentage (of total)
White373100%

Mammoth Marital Status

Economics and Income Statistics

Mammoth 's average per capita income is $50,982. Household income levels show a median of $39,219. The poverty rate stands at 18.23%.

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$54,167-
Non Families$40,288$79,658
Households$39,219$61,853
Families$38,750$49,578

$50,982

Average Income

$39,219

Median Household Income

18.23%

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)