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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/02125

02125

ZIP 02125 is in Dorchester, Massachusetts, in Suffolk County; area codes 617 and 857; Eastern time. Dorchester has 3 ZIP codes; the others are 02121 and 02122.

Type
Standard
Time zone
America/New_York
County
Suffolk
Population
33,662
Coordinates
42.3157, -71.0556
☼ Live from 02125 — Dorchester, MA

Weather right now

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NEXRAD radar
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Local time: —

Where 02125 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 02125
  • 🔢 Type 02125 into a pocket calculator and turn it upside down: SZIZO — not quite a word, sorry.
  • ➕ As a number, 2,125 = 5 × 5 × 5 × 17. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100001001101
  • 🏠 Its numerical neighbours: 02124 (Dorchester Center, MA, 2 mi away) and 02126 (Mattapan, MA, 3 mi away).
  • 🔄 Backwards, 02125 becomes 52120, which is not a ZIP code at all.
  • 👥 35 other ZIP codes are made of exactly the same digits (01225, 01252, 01522, 02152, 02215, 10522, …). The farthest-flung twin is 51022 in Granville, IA, 1,256 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 96%.
  • 🎯1,438 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 02125 and you would come out at 42.32°S, 108.94°E — 810 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 05m.
  • 📏 At 2.2 square miles of land, 02125 is bigger than 12% of ZIP codes — room for about 1.6 Central Parks.
🌙 The sky over 02125 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population33,662This ZIP33,662
Households14,246This ZIP14,246
Housing units15,307This ZIP15,307
Median age34.4This ZIP34.4Massachusetts40.0US 38.9
Median household income$82,953This ZIP$82,953Massachusetts$103,960US $80,734
Median home value$657,100This ZIP$657,100Massachusetts$562,100US $332,700
Median gross rent$1,949This ZIP$1,949Massachusetts$1,762US $1,413
Bachelor's degree or higher43.7%This ZIP43.7%
Mean commute30.3 minThis ZIP30.3 min
Population density15,526.8 / sq miThis ZIP15,526.8 / sq mi

Business and tax activity

Business establishments518This ZIP518
Employees10,196This ZIP10,196
Annual payroll$720,532,000This ZIP$720,532,000
Tax returns filed17,340This ZIP17,340
Total adjusted gross income$1,247,093,000This ZIP$1,247,093,000

Land area

Land area2.17 sq miThis ZIP2.17 sq mi
Water area0.31 sq miThis ZIP0.31 sq mi

Other place names in 02125

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

ZIP codes near 02125

ZIPCityDistance
02122 Dorchester, MA 1.4 mi
02127 Boston, MA 1.6 mi
02119 Roxbury, MA 1.6 mi
02118 Boston, MA 1.7 mi
02121 Dorchester, MA 1.8 mi
02171 Quincy, MA 2.3 mi
02124 Dorchester Center, MA 2.3 mi
02205 Boston, MA 2.3 mi
02210 Boston, MA 2.4 mi
02120 Roxbury Crossing, MA 2.4 mi

Find every ZIP code within 10 miles of 02125 →

Questions about this ZIP code

Where is ZIP code 02125?

02125 is in Dorchester, Massachusetts, in Suffolk County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.3157, -71.0556.

What county is 02125 in?

02125 lies in Suffolk County.

What area code is 02125?

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

What time zone is 02125 in?

02125 uses America/New_York.

How many people live in 02125?

About 33,662 people live in ZIP code 02125, in 14,246 households, at 15,526.8 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 02125?

$82,953 a year, against $103,960 across Massachusetts.

What ZIP codes are near 02125?

The closest are 02122 (1.4 mi), 02127 (1.6 mi), 02119 (1.6 mi), 02118 (1.7 mi) and 02121 (1.8 mi).

Is 02125 a PO Box ZIP code?

02125 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “02125 ZIP Code — Dorchester, Massachusetts (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02125

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