PlainZIP

Mammoth, AZ · standard

ZIP Code 85618

Pinal County, Arizona - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,725
6/sq mi
$51,953
Median income
$102,500
Median home value
6.8%
Bachelor's or higher

The verdict

Mammoth pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

17th pct
household income, US ZIPs
10th pct
home value, US ZIPs
6
people per sq mi
88%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 85618 against every reporting US ZIP.

ZIP code 85618 covers 292.4 square miles in Mammoth, Pinal County, Arizona (a standard USPS delivery area), with a modest 1,725 residents on file, a density of 6 people per square mile, in the Phoenix time zone.

ZIP 85618 reports a modest median household income of $51,953 (28% below the Arizona average), while per-capita income is $21,199. Local economic indicators show a 25.7% poverty rate alongside 24.0% unemployment. On housing, the median home value is $102,500 (70% below the state average) with median rent at $1,136 per month, and 88.1% of occupied units are owner-occupied.

Formal educational attainment runs low here: just 6.8% of adults hold a bachelor's degree or higher, the median age is 57.3, and the average commute is -. To put 85618 in local context, 1 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Pinal County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 85618, Mammoth, AZ · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,725

Population

292.4

Area (sq mi)

6

People / sq mi

Phoenix

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 85618?

57.3

Median Age

52.8%

Male

47.2%

Female

7.9%

Foreign-Born

White 55.0%
African American 0.0%
Asian 0.3%
American Indian or Alaska Native 0.6%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 27.9%
Hispanic or Latino 70.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$51,953

Median Household Income

-28% vs state

$21,199

Per Capita Income

25.7%

Poverty Rate

24.0%

Unemployment Rate

How ZIP 85618 ranks nationally

Mammoth, AZ household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$51,953 17th percentile higher than 17% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 53.9%
Bachelor's Degree or Higher 6.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

685

Total Housing Units

555

Occupied Units

130

Vacant Units

2.79

Avg Household Size

Occupancy Type

Owner 88.1%
Renter 11.9%

$102,500

Median Home Value

-70% vs state

$1,136

Median Rent

1973

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 12 business establishments in ZIP 85618, employing approximately 78 people with a combined annual payroll of $3,228,000.

12

Businesses

78

Employees

$3.2M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Retail trade 4 33.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 85618 vs 85631 →

ZIP Code City Population Distance
85631 San Manuel, AZ 3,630 8.4 mi

More ZIP Codes in Pinal County

85122 standard
Casa Grande, AZ
Pop: 50,942
85140 standard
San Tan Valley, AZ
Pop: 36,711
85143 standard
San Tan Valley, AZ
Pop: 35,015
85138 standard
Maricopa, AZ
Pop: 33,633
85132 standard
Florence, AZ
Pop: 33,556
85120 standard
Apache Junction, AZ
Pop: 28,168

Related Areas

Pinal County Mammoth, AZ Arizona

Frequently Asked Questions

What county is ZIP code 85618 in? ▼
ZIP code 85618 (Mammoth) is located in Pinal County, Arizona. Pinal County contains multiple ZIP codes, see the full list at /counties/pinal-az.
What is the population of ZIP code 85618? ▼
ZIP code 85618 in Mammoth, AZ has a population of 1,725 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 85618? ▼
The median household income in ZIP 85618 is $51,953, which is 32% below the national average of $76,288.
What is the average home value in ZIP 85618? ▼
The median home value in ZIP 85618 is $102,500, which is 63% below the national average of $278,155.
What is the demographic makeup of ZIP 85618? ▼
The largest racial group in ZIP 85618 is White at 55.0%. Hispanic or Latino residents make up 70.5% of the population.
How many businesses are in ZIP code 85618? ▼
ZIP code 85618 has 12 business establishments employing approximately 78 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 85618? ▼
In ZIP code 85618, 53.9% of residents aged 25+ have a high school diploma or higher, and 6.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 85618? ▼
In ZIP code 85618, approximately 88.1% of occupied housing units are owner-occupied and 11.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 85618? ▼
The poverty rate in ZIP code 85618 is 25.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.