Mammoth Arizona ZIP Codes
Mammoth holds a single ZIP code.
Every ZIP code in Mammoth
| ZIP code | County |
|---|---|
| 85618 | Pinal County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Mammoth codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mammoth. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Mammoth ZIP code begins 856. Those first three digits identify the sectional center facility that processes mail for this part of Arizona. Statewide that range covers 53 ZIP codes, so Mammoth accounts for 2% of it.
Every Arizona ZIP prefix and the region it covers →
Area codes covering Mammoth
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Mammoth occupies.
Mammoth Arizona area codes in full →
Where Mammoth's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mammoth
| City | Distance | ZIP codes |
|---|---|---|
| Winkelman Arizona ZIP codes | 21 mi | 1 ZIP code |
| Hayden Arizona ZIP codes | 22 mi | 1 ZIP code |
| Kearny Arizona ZIP codes | 28 mi | 1 ZIP code |
| Marana Arizona ZIP codes | 28 mi | 2 ZIP codes |
| Tucson Arizona ZIP codes | 38 mi | 54 ZIP codes |
| Superior Arizona ZIP codes | 47 mi | 1 ZIP code |
| Florence Arizona ZIP codes | 48 mi | 1 ZIP code |
| Globe Arizona ZIP codes | 49 mi | 2 ZIP codes |
Straight-line distance between place reference points, not driving distance.