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/HOULTON

Houlton ZIP code, Maine

The ZIP code for Houlton, ME is 04730, and its area code is 207.

USPS city name
1 ZIP code
Population
5,082
Area code
207
State
Maine

Houlton in numbers

About 5,082 people live in Houlton, in 2,205 households, the 34th-largest of Maine's 155 census places. The median household income is $59,236 a year, 21% below the Maine median of $74,733 (US: $80,734). The median owner-occupied home is valued at $129,600 (56% below the Maine median), and median gross rent is $814 a month. The median age is 45.0; 26.0% of adults 25 and over hold a bachelor's degree or higher (36.2% across Maine); the average commute takes 10 minutes.

Population5,082Houlton5,082
Households2,205Houlton2,205
Median age45.0Houlton45.0Maine44.8US 38.9
Median household income$59,236Houlton$59,236Maine$74,733US $80,734
Median home value$129,600Houlton$129,600Maine$296,600US $332,700
Median gross rent$814Houlton$814Maine$1,139US $1,413
Bachelor's degree or higher26.0%Houlton26.0%Maine36.2%US 35.7%
Mean commute10.0 minHoulton10.0 minMaine24.6 minUS 26.4 min
Population density967 / sq miHoulton967 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Houlton CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Houlton

ZIP codes with the USPS city name Houlton
ZIP City Type Population Median income Median home
04730 Houlton , ME Standard 10,106 $61,980 $145,200

Map of Houlton ZIP codes

04730

The ZIP codes of Houlton, 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 Houlton

The nearest larger towns are Presque Isle (8,736 people, 40 mi), Caribou (7,382 people, 50 mi) and Old Town (7,470 people, 92 mi).

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

Cite this page

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

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