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zipcodes.pro — ZIP/01432

01432

ZIP 01432 is Ayer, Massachusetts, in Middlesex County; area code 978; Eastern time.

Type
Standard
Time zone
America/New_York
County
Middlesex
Population
8,521
Coordinates
42.5666, -71.5751
☼ Live from 01432 — Ayer, MA

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Where 01432 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 01432
  • 🔢 Type 01432 into a pocket calculator and turn it upside down: ZEhIO — not quite a word, sorry.
  • ➕ As a number, 1,432 = 2 × 2 × 2 × 179. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011000
  • 🏠 Its numerical neighbours: 01431 (Ashby, MA, 15 mi away) and 01434 (Devens, MA, 3 mi away).
  • 🔄 Backwards, 01432 becomes 23410 — and that is a real ZIP code: Melfa, VA, 405 miles away.
  • 👥 68 other ZIP codes are made of exactly the same digits (01243, 01342, 02134, 02143, 02341, 03241, …). The farthest-flung twin is 34021 in APO AA, a military post office, 2,280 miles away.
  • 🧭 Farther north than 80% of all ZIP codes, and farther east than 95%.
  • 🎯1,411 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01432 and you would come out at 42.57°S, 108.42°E — 839 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 03m.
  • 📏 At 8.5 square miles of land, 01432 is bigger than 25% of ZIP codes — room for about 6.5 Central Parks.
🌙 The sky over 01432 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population8,521This ZIP8,521
Households3,567This ZIP3,567
Housing units3,804This ZIP3,804
Median age39.0This ZIP39.0Massachusetts40.0US 38.9
Median household income$101,966This ZIP$101,966Massachusetts$103,960US $80,734
Median home value$463,800This ZIP$463,800Massachusetts$562,100US $332,700
Median gross rent$1,442This ZIP$1,442Massachusetts$1,762US $1,413
Bachelor's degree or higher41.9%This ZIP41.9%
Mean commute32.8 minThis ZIP32.8 min
Population density1,000.1 / sq miThis ZIP1,000.1 / sq mi

Business and tax activity

Business establishments216This ZIP216
Employees4,132This ZIP4,132
Annual payroll$312,021,000This ZIP$312,021,000
Tax returns filed4,400This ZIP4,400
Total adjusted gross income$421,959,000This ZIP$421,959,000

Land area

Land area8.52 sq miThis ZIP8.52 sq mi
Water area0.49 sq miThis ZIP0.49 sq mi

Other place names in 01432

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

ZIP codes near 01432

ZIPCityDistance
01470 Groton, MA 3.1 mi
01471 Groton, MA 3.1 mi
01434 Devens, MA 3.1 mi
01450 Groton, MA 3.2 mi
01464 Shirley, MA 3.4 mi
01472 West Groton, MA 3.7 mi
01451 Harvard, MA 4.5 mi
01460 Littleton, MA 4.8 mi
01467 Still River, MA 5.8 mi
01719 Boxborough, MA 6.2 mi

Find every ZIP code within 10 miles of 01432 →

Questions about this ZIP code

Where is ZIP code 01432?

01432 is in Ayer, Massachusetts, in Middlesex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.5666, -71.5751.

What county is 01432 in?

01432 lies in Middlesex County.

What area code is 01432?

Ayer uses area code 978, from NANPA's telephone records.

What time zone is 01432 in?

01432 uses America/New_York.

How many people live in 01432?

About 8,521 people live in ZIP code 01432, in 3,567 households, at 1,000.1 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 01432?

$101,966 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01432?

The closest are 01470 (3.1 mi), 01471 (3.1 mi), 01434 (3.1 mi), 01450 (3.2 mi) and 01464 (3.4 mi).

Is 01432 a PO Box ZIP code?

01432 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01432 ZIP Code — Ayer, Massachusetts (Middlesex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01432

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