Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/ME/READFIELD

Readfield ZIP code, Maine

The ZIP code for Readfield, ME is 04355, and its area code is 207.

USPS city name
1 ZIP code
Population
2,651
Area code
207
State
Maine

Readfield in numbers

About 2,651 people live in Readfield, in 1,027 households. The median household income is $86,504 a year, 16% above the Maine median of $74,733 (US: $80,734). The median owner-occupied home is valued at $326,400 (10% above the Maine median).

Population2,651Readfield2,651
Households1,027Readfield1,027
Median household income$86,504Readfield$86,504Maine$74,733US $80,734
Median home value$326,400Readfield$326,400Maine$296,600US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Readfield. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Readfield

ZIP codes with the USPS city name Readfield
ZIP City Type Population Median income Median home
04355 Readfield , ME Standard 2,651 $86,504 $326,400

Map of Readfield ZIP codes

04355

The ZIP codes of Readfield, ME, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Readfield

The nearest larger towns are Winthrop (3,108 people, 4.2 mi), Augusta (19,077 people, 11 mi) and Gardiner (6,088 people, 15 mi).

Towns near Readfield
TownPopulationDistance
Winthrop 3,108 4.2 mi
Hallowell 2,592 9.4 mi
Augusta 19,077 11.2 mi
Gardiner 6,088 15.2 mi
Oakland 2,710 16.7 mi
Waterville 17,077 18.1 mi
Winslow 5,873 20.5 mi
Farmington 4,705 21.8 mi
Lewiston 38,324 23.1 mi
Auburn 24,602 25.5 mi
Lisbon 3,612 25.7 mi
Lisbon Falls 4,267 26.5 mi
Skowhegan 6,662 29.6 mi
Madison 2,676 29.7 mi

More nearby: every ZIP code in Kennebec County · Maine ZIP codes

Cite this page

zipcodes.pro. “Readfield, ME ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/me/readfield

Underlying data is public domain or openly licensed — sources, vintages and licences.