Town · Arizona
Mammoth, Arizona
Mammoth, town, in Pinal County, Arizona. Mammoth had 1,149 residents on July 1, 2025 by the Census Bureau's estimate, up 6.2% since 2020; the 2020 Census counted 1,076 and the ACS 2020-2024 5-year estimates put it at 1,191 (±276). GEOID 0443990.
Residents, July 2025 estimate
1,149
Census Bureau estimate (no margin published)
2020 Census count: 1,076 · ACS 2020-2024: 1,191 ±276
Median household income
$47,266
±$8,754 (90% margin)
Arizona: $79,964
Median home value
$98,400
±$11,969 (90% margin)
Arizona: $394,500
Median gross rent
$1,146
±$592 (90% margin)
Arizona: $1,543
Where is Mammoth and what county is it in?
Mammoth is a town in Pinal County, Arizona. It covers 26.3 square miles of land, 41 residents per square mile in 2020.
Mammoth is in the Phoenix-Mesa-Chandler, AZ metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Mammoth, and is it growing?
The Census Bureau estimates that 1,149 people lived in Mammoth on July 1, 2025, up 6.2% since 2020, in line with Arizona (+6.5%). The 2020 Census counted 1,076 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,191 (±276).
| Measure | Mammoth | Pinal County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,191 ±276 | 469,006 | −462 |
| Households | 433 ±72 | 161,917 | −106 |
| Average household size | 2.75 ±0.40 | 2.80 | no clear change |
| Housing units | 558 ±70 | 184,651 | −143 |
Mammoth's population since 2000
From 1,762 in 2000 to 1,149 in 2025: down 34.8%. The 2000, 2010 and 2020 figures are census counts, each for Mammoth as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Mammoth?
The median resident of Mammoth is 53.0 years old; 19.4% are under 18 and 30.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 74.4%, then non-Hispanic white residents at 23.5%. 10.2% of residents were born outside the United States.
| Measure | Mammoth | Pinal County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 53.0 ±11.0 | 40.4 | no clear change |
| Under 18 years | 19.4% ±7.2 pts | 21.5% | – |
| 65 years and over | 30.5% ±8.0 pts | 21.5% | – |
| Male | 51.0% ±5.1 pts | 51.8% | – |
| Hispanic or Latino (any race) | 74.4% ±8.6 pts | 29.8% | no clear change |
| White alone, not Hispanic | 23.5% ±8.1 pts | 54.9% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±3.7 pts | 5.1% | – |
| Asian alone, not Hispanic | 0.0% ±3.7 pts | 1.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.8% ±1.0 pts | 3.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.7 pts | 0.3% | – |
| Two or more races, not Hispanic | 1.3% ±1.1 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.0% ±3.7 pts | 0.4% | – |
| Born outside the United States | 10.2% ±5.1 pts | 9.1% | no clear change |
| Speak a language other than English at home (age 5+) | 39.7% ±7.5 pts | 18.6% | – |
| Civilian veterans (age 18+) | 11.1% ±4.6 pts | 9.7% | – |
| With a disability | 27.2% ±7.3 pts | 17.2% | – |
| No health insurance coverage | 11.1% ±6.0 pts | 10.9% | no clear change |
| High school graduate or higher (age 25+) | 78.7% ±7.0 pts | 89.2% | – |
| Bachelor's degree or higher (age 25+) | 9.3% ±4.5 pts | 22.5% | +6.0 pts |
| Graduate or professional degree (age 25+) | 4.5% ±3.5 pts | 7.5% | – |
| Lived in the same house a year earlier | 89.8% ±9.0 pts | 86.2% | – |
| Moved from another state in the past year | 0.3% ±0.6 pts | 3.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Mammoth earn?
Half of Mammoth's 433 households earn less than $47,266 a year (±$8,754), against $80,266 in Pinal County and $79,964 in Arizona. In 2015-2019 it was $47,475 in 2024 dollars; the margins of error cannot tell the two periods apart. 29.0% of residents live below the poverty line.
| Measure | Mammoth | Pinal County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $47,266 ±$8,754 | $80,266 | no clear change |
| Mean household income | $51,897 ±$7,832 | $99,424 | – |
| Per capita income | $20,936 ±$3,786 | $36,067 | no clear change |
| People below the poverty line | 29.0% ±12.4 pts | 11.1% | no clear change |
| Children under 18 below the poverty line | 45.7% ±31.3 pts | 13.8% | – |
| Households receiving SNAP | 28.9% ±10.5 pts | 10.8% | – |
| Households with a computer | 89.4% ±5.8 pts | 96.8% | – |
| Households with a broadband subscription | 82.9% ±7.3 pts | 92.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Mammoth?
Owners occupy 89.1% of Mammoth's occupied homes and renters 10.9%. The median owner-occupied home is valued at $98,400 by its owner (±$11,969). The median renter pays $1,146 a month including utilities.
| Measure | Mammoth | Pinal County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $98,400 ±$11,969 | $349,000 | +$22,220 |
| Median gross rent | $1,146 ±$592 | $1,537 | no clear change |
| Renters paying 35% or more of income on rent | 50.0% ±42.8 pts | 38.6% | – |
| Median monthly owner costs, with a mortgage | $1,161 ±$243 | $1,714 | – |
| Owner-occupied homes | 89.1% ±7.5 pts | 81.7% | no clear change |
| Renter-occupied homes | 10.9% ±7.5 pts | 18.3% | – |
| Housing units | 558 ±70 | 184,651 | −143 |
| Homeowner vacancy rate | 2.5% ±3.3 pts | 1.2% | – |
| Rental vacancy rate | 17.5% ±25.8 pts | 6.9% | – |
| Single-family detached homes | 63.6% ±8.9 pts | 76.6% | – |
| Mobile homes | 25.6% ±7.4 pts | 15.8% | – |
| Built 2020 or later | 0.0% ±7.7 pts | 5.6% | – |
| Built 2010 to 2019 | 0.0% ±7.7 pts | 19.0% | – |
| Built 1939 or earlier | 1.1% ±1.4 pts | 0.8% | – |
| Households with no vehicle | 0.0% ±9.9 pts | 3.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Mammoth building?
Builders took permits for 0 new housing units in Mammoth in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 6.8 across Arizona.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Mammoth work and get to work?
58.6% of Mammoth's workers drive alone. The average trip to work takes 34.5 minutes.
| Measure | Mammoth | Pinal County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 40.2% ±8.0 pts | 53.9% | – |
| Unemployment rate | 17.6% ±13.6 pts | 6.0% | – |
| Drove alone to work | 58.6% ±13.4 pts | 68.3% | – |
| Carpooled | 28.4% ±12.6 pts | 11.4% | – |
| Public transportation | 3.4% ±5.6 pts | 0.1% | – |
| Walked | 0.0% ±12.9 pts | 1.4% | – |
| Worked from home | 3.4% ±3.8 pts | 16.9% | – |
| Mean travel time to work | 34.5 min ±8.0 | 31.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Mammoth?
No census tract lies mostly in Mammoth; 2 tracts reach into it (2020 census blocks).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Mammoth) · Census block assignment files
How does Mammoth compare with other places in Arizona?
By the Census Bureau's July 2025 estimates, Mammoth is the 9,744th-most populous of the 19,476 U.S. incorporated places that have one and the 85th-most populous of 91 in Arizona.
Mammoth ranks 163rd of 196 places in Arizona with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 85th | 91 |
| Growth 2020-2025 (PEP) | 34th | 85 |
| Residents per square mile | 203rd | 210 |
| Median household income | 163rd | 196 |
| Per capita income | 177th | 209 |
| Median home value | 166th | 189 |
| Median gross rent | 77th | 168 |
| Poverty rate | 29th | 164 |
| Bachelor's degree or higher | 164th | 175 |
| Median age | 64th | 208 |
| Owner-occupied share | 46th | 206 |
| Travel time to work | 26th | 206 |
Mammoth's figures with every place in Arizona (CSV)
Every place in Arizona, sortable · Compare Mammoth with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Mammoth?
21 of the 57 figures for Mammoth on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Mammoth are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Mammoth.