Mammoth, Pennsylvania Population 2024

421

Mammoth is a city located in Fayette County and Westmoreland County Pennsylvania. Mammoth has a 2024 population of 421. Mammoth is currently growing at a rate of 3.69% annually but its population has decreased by -1.64% since the most recent census, which recorded a population of 428 in 2020.

The average household income in Mammoth is $81,063 with a poverty rate of 6.39%. The median age in Mammoth is 57.8 years: 55.6 years for males, and 65.3 years for females.

Mammoth Demographics

According to the most recent ACS, the racial composition of Mammoth was:

  • White: 100%
  • Black or African American: 0%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
  • Two or more races: 0%
Land Area (mi²)
2.0 sq mi
Density (mi²)
208.20/sq mi
Growth Since 2020
-1.64% (-7)
The current population of Mammoth, Pennsylvania is 421 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 428.

Population by Race

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Race
Population
Percentage (of total)
White391100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Mammoth Population by Race

Mammoth Population Pyramid 2024

Mammoth Median Age

57.8

Total

55.6

Male

65.3

Female

Mammoth Adults

There are 358 adults, (172 of whom are seniors) in Mammoth.

Mammoth Age Dependency

110.2

Age Dependency Ratio

92.5

Old Age Dependency Ratio

17.7

Child Dependency Ratio

Mammoth Sex Ratio

Female22457.29%
Male16742.71%

Mammoth Population by Age

Mammoth Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All2121.8475.524.5
Non Family1071.227228
Married782.4171.828.2
Female272.671000
Male0000

2.48

Average Family Size

1.84

Average Household Size

75.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mammoth Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade195.78%
Associates Degree195.78%
Bachelors Degree6319.15%
Graduate Degree00%
High School Graduate17452.89%
Less Than 9th Grade00%
Some College5416.41%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mammoth Educational Attainment by Sex (over 25)

Mammoth Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White32931063

The highest rate of high school graduation is among white people with a rate of 94.22%.

The highest rate of bachelors degrees is among white people with a rate of 19.15%.

Mammoth Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$0$0$0
Graduate Degree$0$0$0
High School Graduate$73,182$0$34,821
Less Than 9th Grade$0$0$0
Overall$47,143$0$34,375
Some College$33,636$0$29,219

$47,143

Average Earnings

$0

Average Male

$34,375

Average Female

Mammoth Earnings by Educational Attainment

Mammoth Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mammoth Language

96.93% of Mammoth residents speak only English, while 3.07% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.07% of the population.

Mammoth Language

Mammoth Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White391256.39%

6.39%

Overall Poverty Rate

10.78%

Male Poverty Rate

3.13%

Female Poverty Rate

Poverty in Mammoth

The race most likely to be in poverty in Mammoth is White, with 6.39% below the poverty level.

The race least likely to be in poverty in Mammoth is White, with 6.39% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 0%, and for those that did not work, the poverty rate was 10.53%.

Mammoth Poverty

rate

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Rate
Poverty
Less Than 9th Grade36.84%
Some College15.07%
High School0%
Bachelors or Greater0%

Mammoth Poverty Rate by Education

rate

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Rate
Poverty
Male Employed0%
Male Unemployed0%
Female Employed0%
Female Unemployed0%

Mammoth Poverty Rate by Employment Status and Sex

Mammoth Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$49,716$68,029
Households$49,545$81,063
Married Families$58,077$-999,999,999
Non Families$47,083$93,855

mean

median

Income by Household Type

Mammoth Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

42.0%

Overall Marriage Rate

50.3%

Male Marriage Rate

35.8%

Female Marriage Rate

Mammoth Married by Age and Sex

male

female

Mammoth Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is Over 65.

Mammoth Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mammoth Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

0

Number of Veterans

0

Male Veterans

0

Female Veterans

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War
Veterans
Second Gulf War0
First Gulf War0
Vietnam0
Korea0
World War II0

Mammoth Veterans by War

count

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Age Group
Veterans
18 to 340
35 to 540
55 to 640
65 to 740
75+0

Mammoth Veterans by Age

count

Mammoth Veterans by Race

Mammoth Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

0%

Veteran Disability Rate

Mammoth Veterans by Education

LaborForceParticipation

54%

Labor Force Participation

54%

Employment Rate

0%

Unemployment Rate

Mammoth Employment by Age

LaborForceParticipation

Mammoth Employment by Race

LaborForceParticipation

Mammoth Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

94.12%

Born in Mammoth

100%

Native Born

0%

Foreign Born

0%

Non Citizen

0%

Naturalized

Place of Birth

100% of Mammoth residents were born in the United States, with 94.12% having been born in Pennsylvania. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Mammoth Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2024421153.69%
2023406153.84%
2022391153.99%
2021376-52-12.15%
2020428-39-8.35%
20194674811.46%
2018419-74-15.01%
2017493112.28%
2016482102.12%
2015472-115-19.59%
2014587162.8%
201357111023.86%
2012461-90-16.33%
2011551264.95%
201052500%

Mammoth Population by Year