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 — ZIP/04001

04001

ZIP 04001 is Acton, Maine, in York County; area code 207; Eastern time.

Type
Standard
Time zone
America/New_York
County
York
Population
2,721
Coordinates
43.5367, -70.9402
☼ Live from 04001 — Acton, ME

Weather right now

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Local time: —

Where 04001 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 04001
  • 🔢 Type 04001 into a pocket calculator and turn it upside down: IOOhO — not quite a word, sorry.
  • ➕ 04001 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 5, a total 55 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111110100001
  • 🏠 Its numerical neighbours: 03911 (York Harbor, ME, 32 mi away) and 04002 (Alfred, ME, 14 mi away).
  • 🔄 Backwards, 04001 becomes 10040 — and that is a real ZIP code: New York, NY, 240 miles away.
  • 👥 6 other ZIP codes are made of exactly the same digits (01004, 01040, 04010, 10004, 10040, 40010). The farthest-flung twin is 40010 in Buckner, KY, 836 miles away.
  • 🧭 Farther north than 85% of all ZIP codes, and farther east than 96%.
  • 🎯1,442 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 04001 and you would come out at 43.54°S, 109.06°E — 882 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
  • 📏 At 37.7 square miles of land, 04001 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
🌙 The sky over 04001 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,721This ZIP2,721
Households1,066This ZIP1,066
Housing units2,291This ZIP2,291
Median age52.9This ZIP52.9Maine44.8US 38.9
Median household income$78,750This ZIP$78,750Maine$74,733US $80,734
Median home value$334,300This ZIP$334,300Maine$296,600US $332,700
Bachelor's degree or higher24.2%This ZIP24.2%
Mean commute40.4 minThis ZIP40.4 min
Population density72.1 / sq miThis ZIP72.1 / sq mi

Business and tax activity

Business establishments45This ZIP45
Employees216This ZIP216
Annual payroll$7,654,000This ZIP$7,654,000
Tax returns filed1,380This ZIP1,380
Total adjusted gross income$107,264,000This ZIP$107,264,000

Land area

Land area37.75 sq miThis ZIP37.75 sq mi
Water area3.35 sq miThis ZIP3.35 sq mi

ZIP codes near 04001

ZIPCityDistance
03852 Milton Mills, NH 3.7 mi
04076 Shapleigh, ME 5.5 mi
03872 Sanbornville, NH 5.7 mi
03830 East Wakefield, NH 6.0 mi
04095 West Newfield, ME 6.5 mi
03887 Union, NH 7.5 mi
04083 Springvale, ME 8.1 mi
03851 Milton, NH 8.1 mi
04056 Newfield, ME 9.5 mi
04027 Lebanon, ME 9.5 mi

Find every ZIP code within 10 miles of 04001 →

Questions about this ZIP code

Where is ZIP code 04001?

04001 is in Acton, Maine, in York County, part of the Portland-South Portland, ME metropolitan area. Its published point location is 43.5367, -70.9402.

What county is 04001 in?

04001 lies in York County.

What area code is 04001?

Acton uses area code 207, from NANPA's telephone records.

What time zone is 04001 in?

04001 uses America/New_York.

How many people live in 04001?

About 2,721 people live in ZIP code 04001, in 1,066 households, at 72.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 04001?

$78,750 a year, against $74,733 across Maine.

What ZIP codes are near 04001?

The closest are 03852 (3.7 mi), 04076 (5.5 mi), 03872 (5.7 mi), 03830 (6 mi) and 04095 (6.5 mi).

Is 04001 a PO Box ZIP code?

04001 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “04001 ZIP Code — Acton, Maine (York County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/04001

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