| City: | Apache Junction, Arizona |
| City Alias: | Apache Jct |
| County: | Pinal County |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 10:05:02 PM |
| Population: | No Population Data |
| Area Code: | 480 |
| Classification: | PO Box |
| Coordinates: | 33.4223, -111.5477 |
| Quick Link: |
ZIP code 85178 serves a compact section of Apache Junction, Arizona, in Pinal County. This postal zone was introduced in June 2009 as a PO Box-only facility. The post office maintains 314 PO Boxes, serving both individuals and businesses in the area.
Despite having no street delivery within the ZIP itself, residents typically receive carrier service through neighboring ZIPs. The zone supports 107 businesses, which rely on the PO Box system for mail. One street, W Superstition Blvd, appears in the ZIP+4 directory with 170 delivery records pointing to unit-based addresses. The setup is common for areas where a dedicated PO Box ZIP serves customers who also have access to street addresses in adjacent zones.
The single street name references the nearby Superstition Mountains, a prominent landmark in the Apache Junction area.
ZIP Code 85178 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 10 people with an annual payroll of $536,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 524Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $141,000Source: CBP |
| Annual Payroll: | $536,000Source: CBP |
| # of Employees: | 10Source: CBP |
ZIP Code 85178 is located in Pinal County, Arizona, within the Phoenix-Mesa-Chandler, AZ Metropolitan Statistical Area (CBSA 38060) and Arizona's 5th Congressional District. This Metro area has a population of 4,941,206 people, about 0.00% of whom live in ZIP Code 85178. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Phoenix-Mesa-Chandler, AZSource: Census |
| CBSA Number: | 38060Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 4,941,206Source: Census |
| MSA: | Phoenix-Mesa, AZ MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 05Source: USPS |
| Congressional Land Area: | 293.47 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | 2009-06Source: ZIP-Codes.com |
| Place FIPS Code: | 0402830Source: Census |
| Place Name: | Apache Junction city; ArizonaSource: Census |
We could not locate which school district 85178 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.