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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/04645

04645

ZIP 04645 is Isle Au Haut, Maine, in Knox County; area code 207; Eastern time.

Type
Standard
Time zone
America/New_York
County
Knox
Metro area
none
Population
69
Coordinates
44.0647, -68.6208
☼ Live from 04645 — Isle Au Haut, ME

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Where 04645 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 04645
  • 🔢 Type 04645 into a pocket calculator and turn it upside down: ShghO — not quite a word, sorry.
  • ➕ As a number, 4,645 = 5 × 929. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001000100101
  • 🏠 Its numerical neighbours: 04644 (Hulls Cove, ME, 31 mi away) and 04646 (Islesford, ME, 24 mi away).
  • 🔄 Backwards, 04645 becomes 54640 — and that is a real ZIP code: Lynxville, WI, 1,119 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (04456, 04564, 04654, 05446, 05464, 40456, …). The farthest-flung twin is 64504 in Saint Joseph, MO, 1,379 miles away.
  • 🧭 Farther north than 88% of all ZIP codes, and farther east than 98%.
  • 🎯1,558 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 04645 and you would come out at 44.06°S, 111.38°E — 871 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 30m of daylight. Shortest: 8h 53m.
  • 📏 At 12.5 square miles of land, 04645 is bigger than 30% of ZIP codes — room for about 9.5 Central Parks.
🌙 The sky over 04645 today
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🌋 Shake report
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Source: USGS.

People and housing

Population69This ZIP69
Households50This ZIP50
Housing units138This ZIP138
Median age71.4This ZIP71.4Maine44.8US 38.9
Median household income$49,500This ZIP$49,500Maine$74,733US $80,734
Median home value$593,800This ZIP$593,800Maine$296,600US $332,700
Median gross rent$967This ZIP$967Maine$1,139US $1,413
Bachelor's degree or higher56.5%This ZIP56.5%
Mean commute4.2 minThis ZIP4.2 min
Population density5.5 / sq miThis ZIP5.5 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees12This ZIP12
Annual payroll$227,000This ZIP$227,000

Land area

Land area12.52 sq miThis ZIP12.52 sq mi
Water area28.27 sq miThis ZIP28.27 sq mi

ZIP codes near 04645

ZIPCityDistance
04681 Stonington, ME 6.1 mi
04685 Swans Island, ME 11.0 mi
04863 Vinalhaven, ME 11.5 mi
04853 North Haven, ME 13.2 mi
04635 Frenchboro, ME 13.5 mi
04627 Deer Isle, ME 14.3 mi
04616 Brooklin, ME 15.2 mi
04683 Sunset, ME 15.5 mi
04674 Seal Cove, ME 15.5 mi
04673 Sargentville, ME 16.2 mi

Find every ZIP code within 10 miles of 04645 →

Questions about this ZIP code

Where is ZIP code 04645?

04645 is in Isle Au Haut, Maine, in Knox County. Its published point location is 44.0647, -68.6208.

What county is 04645 in?

04645 lies in Knox County.

What area code is 04645?

Isle Au Haut uses area code 207, from NANPA's telephone records.

What time zone is 04645 in?

04645 uses America/New_York.

How many people live in 04645?

About 69 people live in ZIP code 04645, in 50 households, at 5.5 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 04645?

$49,500 a year, against $74,733 across Maine.

What ZIP codes are near 04645?

The closest are 04681 (6.1 mi), 04685 (11 mi), 04863 (11.5 mi), 04853 (13.2 mi) and 04635 (13.5 mi).

Is 04645 a PO Box ZIP code?

04645 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “04645 ZIP Code — Isle Au Haut, Maine (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/04645

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