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Where 02128 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.
- 🔢 Type 02128 into a pocket calculator and turn it upside down: BZIZO — not quite a word, sorry.
- ➕ As a number, 2,128 = 2 × 2 × 2 × 2 × 7 × 19. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100001010000 - 🏠 Its numerical neighbours: 02127 (Boston, MA, 2 mi away) and 02129 (Charlestown, MA, 3 mi away).
- 🔄 Backwards, 02128 becomes 82120, which is not a ZIP code at all.
- 👥 38 other ZIP codes are made of exactly the same digits (01822, 02812, 08212, 08221, 10282, 12028, …). The farthest-flung twin is 81220 in Cimarron, CO, 1,926 miles away.
- 🧭 Farther north than 78% of all ZIP codes, and farther east than 96%.
- 🎯1,440 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 02128 and you would come out at 42.36°S, 108.99°E — 812 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
- 📏 At 5.0 square miles of land, 02128 is bigger than 19% of ZIP codes — room for about 3.8 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 43,345This ZIP43,345 |
|---|---|
| Households | 17,736This ZIP17,736 |
| Housing units | 19,193This ZIP19,193 |
| Median age | 34.5This ZIP34.5Massachusetts40.0US 38.9 |
| Median household income | $90,106This ZIP$90,106Massachusetts$103,960US $80,734 |
| Median home value | $668,000This ZIP$668,000Massachusetts$562,100US $332,700 |
| Median gross rent | $2,064This ZIP$2,064Massachusetts$1,762US $1,413 |
| Bachelor's degree or higher | 38.0%This ZIP38.0% |
| Mean commute | 32.0 minThis ZIP32.0 min |
| Population density | 8,625.9 / sq miThis ZIP8,625.9 / sq mi |
Business and tax activity
| Business establishments | 858This ZIP858 |
|---|---|
| Employees | 26,928This ZIP26,928 |
| Annual payroll | $1,774,393,000This ZIP$1,774,393,000 |
| Tax returns filed | 23,060This ZIP23,060 |
| Total adjusted gross income | $1,669,050,000This ZIP$1,669,050,000 |
Land area
| Land area | 5.03 sq miThis ZIP5.03 sq mi |
|---|---|
| Water area | 1.12 sq miThis ZIP1.12 sq mi |
Other place names in 02128
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 02128
| ZIP | City | Distance |
|---|---|---|
02210 | Boston, MA | 1.9 mi |
02152 | Winthrop, MA | 1.9 mi |
02298 | Boston, MA | 1.9 mi |
02109 | Boston, MA | 2.2 mi |
02110 | Boston, MA | 2.3 mi |
02127 | Boston, MA | 2.4 mi |
02113 | Boston, MA | 2.5 mi |
02117 | Boston, MA | 2.6 mi |
02205 | Boston, MA | 2.6 mi |
02203 | Boston, MA | 2.7 mi |
Find every ZIP code within 10 miles of 02128 →
Questions about this ZIP code
Where is ZIP code 02128?
02128 is in Boston, Massachusetts, in Suffolk County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.3615, -71.0074.
What county is 02128 in?
02128 lies in Suffolk County.
What area code is 02128?
Boston uses area codes 617 and 857, from NANPA's telephone records.
What time zone is 02128 in?
02128 uses America/New_York.
How many people live in 02128?
About 43,345 people live in ZIP code 02128, in 17,736 households, at 8,625.9 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 02128?
$90,106 a year, against $103,960 across Massachusetts.
What ZIP codes are near 02128?
The closest are 02210 (1.9 mi), 02152 (1.9 mi), 02298 (1.9 mi), 02109 (2.2 mi) and 02110 (2.3 mi).
Is 02128 a PO Box ZIP code?
02128 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “02128 ZIP Code — Boston, Massachusetts (Suffolk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02128
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/02128.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.