02477

ZIP 02477 is in Watertown, Massachusetts, in Middlesex County; area codes 617 and 857; Eastern time. Watertown has 3 ZIP codes; the others are 02471 and 02472.

Type: No street area
Time zone: America/New_York
County: Middlesex
Metro area: Boston-Cambridge-Newton, MA-NH
Coordinates: 42.3709, -71.1828

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 02472, whose figures describe that area — not this ZIP code.

☼ Live from 02477 — Watertown, MA

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Where 02477 is

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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 02477

🔢 Type 02477 into a pocket calculator and turn it upside down: LLhZO — not quite a word, sorry.
➕ 02477 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
💾In binary, the way a computer stores it: 100110101101
🏠 Its numerical neighbours: 02476 (Arlington, MA, 3 mi away) and 02478 (Belmont, MA, 2 mi away).
🔄 Backwards, 02477 becomes 77420 — and that is a real ZIP code: Boling, TX, 1,647 miles away.
👥 28 other ZIP codes are made of exactly the same digits (02747, 04772, 07724, 20747, 20774, 24077, …). The farthest-flung twin is 77420 in Boling, TX, 1,647 miles away.
🧭 Farther north than 78% of all ZIP codes, and farther east than 96%.
🎯1,431 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 02477 and you would come out at 42.37°S, 108.82°E — 817 miles from Perth, Australia, the nearest big city to that spot.
☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.

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Land area

ZIP codes near 02477

ZIP	City	Distance
`02471`	Watertown, MA	0.0 mi
`02472`	Watertown, MA	0.3 mi
`02495`	Nonantum, MA	1.1 mi
`02479`	Waverley, MA	1.2 mi
`02458`	Newton, MA	1.2 mi
`02455`	North Waltham, MA	1.3 mi
`02478`	Belmont, MA	1.7 mi
`02460`	Newtonville, MA	1.9 mi
`02135`	Brighton, MA	2.1 mi
`02138`	Cambridge, MA	2.5 mi

Find every ZIP code within 10 miles of 02477 →

Questions about this ZIP code

Where is ZIP code 02477?

02477 is in Watertown, Massachusetts, in Middlesex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.3709, -71.1828.

What county is 02477 in?

02477 lies in Middlesex County.

What area code is 02477?

Watertown uses area codes 617 and 857, from NANPA's telephone records.

What time zone is 02477 in?

02477 uses America/New_York.

What ZIP codes are near 02477?

The closest are 02471 (0 mi), 02472 (0.3 mi), 02495 (1.1 mi), 02479 (1.2 mi) and 02458 (1.2 mi).

Is 02477 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. “02477 ZIP Code — Watertown, Massachusetts (Middlesex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02477

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/02477.json

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