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/PENOBSCOT

Penobscot ZIP code, Maine

The ZIP code for Penobscot, ME is 04476, and its area code is 207.

USPS city name
1 ZIP code
Population
1,154
Area code
207
State
Maine

NANPA lists no telephone rate centre for Penobscot itself, so these are the area codes of the nearest one, Castine (6.6 miles). A town on an area-code boundary can differ from its neighbour.

Penobscot in numbers

About 1,154 people live in Penobscot, in 531 households. The median household income is $63,194 a year, 15% below the Maine median of $74,733 (US: $80,734). The median owner-occupied home is valued at $296,400 (about the same as the Maine median).

Population1,154Penobscot1,154
Households531Penobscot531
Median household income$63,194Penobscot$63,194Maine$74,733US $80,734
Median home value$296,400Penobscot$296,400Maine$296,600US $332,700

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

ZIP codes addressed as Penobscot

ZIP codes with the USPS city name Penobscot
ZIP City Type Population Median income Median home
04476 Penobscot , ME Standard 1,154 $63,194 $296,400

Map of Penobscot ZIP codes

04476

The ZIP codes of Penobscot, 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 Penobscot

The nearest larger towns are Bucksport (3,105 people, 8.6 mi), Searsport (1,218 people, 10 mi) and Ellsworth (8,657 people, 13 mi).

Towns near Penobscot
TownPopulationDistance
Bucksport 3,105 8.6 mi
Ellsworth 8,657 13.1 mi
Belfast 6,986 16.3 mi
Hampden 5,161 19.5 mi
Brewer 9,652 20.9 mi
Bangor 31,938 24.3 mi
Camden 3,682 25.8 mi
Orono 11,151 27.3 mi

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

Cite this page

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

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