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/JEFFERSON

Jefferson ZIP code, Maine

The ZIP code for Jefferson, ME is 04348, and its area code is 207.

USPS city name
1 ZIP code
Population
3,484
Area code
207
State
Maine

NANPA lists no telephone rate centre for Jefferson itself, so these are the area codes of the nearest one, Washington (6.3 miles). A town on an area-code boundary can differ from its neighbour.

Jefferson in numbers

About 3,484 people live in Jefferson, in 1,232 households. The median household income is $78,929 a year, 6% above the Maine median of $74,733 (US: $80,734). The median owner-occupied home is valued at $286,300 (3% below the Maine median).

Population3,484Jefferson3,484
Households1,232Jefferson1,232
Median household income$78,929Jefferson$78,929Maine$74,733US $80,734
Median home value$286,300Jefferson$286,300Maine$296,600US $332,700

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

ZIP codes addressed as Jefferson

ZIP codes with the USPS city name Jefferson
ZIP City Type Population Median income Median home
04348 Jefferson , ME Standard 3,484 $78,929 $286,300

Map of Jefferson ZIP codes

04348

The ZIP codes of Jefferson, 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 Jefferson

The nearest larger towns are Augusta (19,077 people, 14 mi), Gardiner (6,088 people, 15 mi) and Rockland (7,035 people, 19 mi).

Towns near Jefferson
TownPopulationDistance
Augusta 19,077 14.4 mi
Gardiner 6,088 14.6 mi
Hallowell 2,592 16.6 mi
Rockland 7,035 19.2 mi
Camden 3,682 21.3 mi
Winthrop 3,108 23.7 mi
Winslow 5,873 24.3 mi
Waterville 17,077 24.5 mi
Oakland 2,710 25.7 mi
Bath 8,815 25.9 mi
Belfast 6,986 27.7 mi
Topsham 7,271 28.1 mi

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

Cite this page

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

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