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City ZIP codes · Arizona

Maricopa, AZ ZIP Codes

2 ZIP codes use the postal name Maricopa, Arizona (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Median household income runs from $86,894 in 85139 to $95,867 in 85138 (Census Bureau, ACS 2020-2024). Maricopa's most populous ZIP code is 85138, with 55,260 people (ACS 2020-2024); 40% of its land is in the city of Maricopa.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Maricopa's ZIP codes?

85138: $96k median household income85139: $87k median household income851398513885138: $96k median household income85139: $87k median household income851398513885138: $96k median household income85139: $87k median household income8513985138
The 2 residential ZIP codes named Maricopa, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Maricopa's ZIP codes?

The highest median household income is in 85138 ($95,867), the lowest in 85139 ($86,894). Home values run from $344,200 in 85139 to $378,800 in 85138.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 2 residential ZIP codes of Maricopa

Residential ZIP codes with the postal name Maricopa, AZ, largest first (ACS 2020-2024); sort by any column
County
85138 Pinal County 55,260 652 $96k $379k
85139 Pinal County 20,784 41 $87k $344k

Download the 2 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

Which counties do Maricopa's ZIP codes reach?

Maricopa's residential ZIP codes lie in 2 counties: Pinal County (2 ZIP codes mainly there), Maricopa County (part of a ZIP code).

Which places do Maricopa's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Maricopa's residential ZIP codes cover Maricopa itself and 2 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Ak-Chin Village census-designated 85139
  • Goodyear 85139

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Maricopa's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Maricopa starts with 851.

Three-digit prefixes of Maricopa's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Maricopa's
PrefixSectional centerHereAll codes
851 Phoenix, AZ (SCF 852) 2 31

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.