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zipcodes.pro — ZIP/02129

02129

ZIP 02129 is Charlestown, Massachusetts, in Suffolk County; area codes 617 and 857; Eastern time.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
20,032
Coordinates
42.3797, -71.0615
☼ Live from 02129 — Charlestown, MA

Weather right now

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Local time: —

Where 02129 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 02129
  • 🔢 Type 02129 into a pocket calculator and turn it upside down: GZIZO — not quite a word, sorry.
  • ➕ 02129 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100001010001
  • 🏠 Its numerical neighbours: 02128 (Boston, MA, 3 mi away) and 02130 (Jamaica Plain, MA, 6 mi away).
  • 🔄 Backwards, 02129 becomes 92120 — and that is a real ZIP code: San Diego, CA, 2,572 miles away.
  • 👥 36 other ZIP codes are made of exactly the same digits (01229, 01922, 02912, 02921, 09212, 10922, …). The farthest-flung twin is 09212 in APO AE, a military post office, 3,666 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 96%.
  • 🎯1,437 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 02129 and you would come out at 42.38°S, 108.94°E — 814 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 1.4 square miles of land, 02129 is bigger than 9% of ZIP codes — room for about 1.0 Central Parks.
🌙 The sky over 02129 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population20,032This ZIP20,032
Households9,606This ZIP9,606
Housing units10,107This ZIP10,107
Median age35.6This ZIP35.6Massachusetts40.0US 38.9
Median household income$157,247This ZIP$157,247Massachusetts$103,960US $80,734
Median home value$912,000This ZIP$912,000Massachusetts$562,100US $332,700
Median gross rent$2,259This ZIP$2,259Massachusetts$1,762US $1,413
Bachelor's degree or higher71.2%This ZIP71.2%
Mean commute28.7 minThis ZIP28.7 min
Population density14,805.6 / sq miThis ZIP14,805.6 / sq mi

Business and tax activity

Business establishments536This ZIP536
Employees13,245This ZIP13,245
Annual payroll$1,091,521,000This ZIP$1,091,521,000
Tax returns filed9,750This ZIP9,750
Total adjusted gross income$1,854,045,000This ZIP$1,854,045,000

Land area

Land area1.35 sq miThis ZIP1.35 sq mi
Water area0.49 sq miThis ZIP0.49 sq mi

Other place names in 02129

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 02129

ZIPCityDistance
02113 Boston, MA 1.0 mi
02109 Boston, MA 1.0 mi
02222 Boston, MA 1.1 mi
02114 Boston, MA 1.1 mi
02141 Cambridge, MA 1.3 mi
02203 Boston, MA 1.3 mi
02112 Boston, MA 1.5 mi
02196 Boston, MA 1.5 mi
02201 Boston, MA 1.5 mi
02211 Boston, MA 1.5 mi

Find every ZIP code within 10 miles of 02129 →

Questions about this ZIP code

Where is ZIP code 02129?

02129 is in Charlestown, Massachusetts, in Suffolk County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.3797, -71.0615.

What county is 02129 in?

02129 lies in Suffolk County.

What area code is 02129?

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

What time zone is 02129 in?

02129 uses America/New_York.

How many people live in 02129?

About 20,032 people live in ZIP code 02129, in 9,606 households, at 14,805.6 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 02129?

$157,247 a year, against $103,960 across Massachusetts.

What ZIP codes are near 02129?

The closest are 02113 (1 mi), 02109 (1 mi), 02222 (1.1 mi), 02114 (1.1 mi) and 02141 (1.3 mi).

Is 02129 a PO Box ZIP code?

02129 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “02129 ZIP Code — Charlestown, Massachusetts (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02129

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