05501

ZIP 05501 is in Andover, Massachusetts, in Essex County; area codes 978 and 351; Eastern time. Andover has 5 ZIP codes; the others are 01810, 01812, 01899 and 05544.

Type: No street area
Time zone: America/New_York
County: Essex
Metro area: Boston-Cambridge-Newton, MA-NH
Coordinates: 42.6472, -71.1842

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 01810, whose figures describe that area — not this ZIP code.

☼ Live from 05501 — Andover, MA

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This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 05501

🔢 Type 05501 into a pocket calculator and turn it upside down: IOSSO — not quite a word, sorry.
➕ 05501 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 11, a total 714 other ZIP codes share.
💾In binary, the way a computer stores it: 1010101111101
🏠 Its numerical neighbours: 05495 (Williston, VT, 156 mi away) and 05544 (Andover, MA, 0 mi away).
🔄 Backwards, 05501 becomes 10550 — and that is a real ZIP code: Mount Vernon, NY, 182 miles away.
👥 18 other ZIP codes are made of exactly the same digits (01505, 01550, 05051, 05150, 10055, 10505, …). The farthest-flung twin is 51050 in Remsen, IA, 1,252 miles away.
🧭 Farther north than 80% of all ZIP codes, and farther east than 96%.
🎯1,430 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 05501 and you would come out at 42.65°S, 108.82°E — 834 miles from Perth, Australia, the nearest big city to that spot.
☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 02m.

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Source: USGS.

Land area

ZIP codes near 05501

ZIP	City	Distance
`01812`	Andover, MA	0.0 mi
`05544`	Andover, MA	0.0 mi
`01810`	Andover, MA	1.1 mi
`01899`	Andover, MA	2.5 mi
`01843`	Lawrence, MA	3.2 mi
`01876`	Tewksbury, MA	3.3 mi
`01842`	Lawrence, MA	4.3 mi
`01840`	Lawrence, MA	4.3 mi
`01841`	Lawrence, MA	5.0 mi
`01845`	North Andover, MA	5.1 mi

Find every ZIP code within 10 miles of 05501 →

Questions about this ZIP code

Where is ZIP code 05501?

05501 is in Andover, Massachusetts, in Essex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.6472, -71.1842.

What county is 05501 in?

05501 lies in Essex County.

What area code is 05501?

Andover uses area codes 978 and 351, from NANPA's telephone records.

What time zone is 05501 in?

05501 uses America/New_York.

What ZIP codes are near 05501?

The closest are 01812 (0 mi), 05544 (0 mi), 01810 (1.1 mi), 01899 (2.5 mi) and 01843 (3.2 mi).

Is 05501 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “05501 ZIP Code — Andover, Massachusetts (Essex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/05501

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/05501.json

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