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 is classified by USPS as a standard delivery area and covers roughly 292.4 square miles in Mammoth, Pinal County, Arizona. The area is home to 1,725 residents, producing a population density of 6 people per square mile, and falls within the Phoenix time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 85618 against Arizona and the nation.
On the economic side, the median household income for ZIP 85618 sits at $51,953 (28% below the Arizona average), while per-capita income is $21,199. The poverty rate stands at 25.7% and the unemployment rate at 24.0%. 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, a direct signal of whether 85618 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 6.8% of adults hold a bachelor's degree or higher, the median age is 57.3, and the average commute is —. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Pinal County, so you can benchmark 85618 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
Who lives in ZIP 85618?
57.3
Median Age
52.8%
Male
47.2%
Female
7.9%
Foreign-Born
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
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
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?
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
$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
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Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Mammoth, AZ
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.