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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/01938

01938

ZIP 01938 is Ipswich, Massachusetts, in Essex County; area codes 978 and 351; Eastern time.

Type
Standard
Time zone
America/New_York
County
Essex
Population
13,930
Coordinates
42.6865, -70.8396
☼ Live from 01938 — Ipswich, MA

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Where 01938 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 01938
  • 🔢 Type 01938 into a pocket calculator and turn it upside down: BEGIO — not quite a word, sorry.
  • ➕ As a number, 1,938 = 2 × 3 × 17 × 19. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110010010
  • 🏠 Its numerical neighbours: 01937 (Hathorne, MA, 10 mi away) and 01940 (Lynnfield, MA, 15 mi away).
  • 🔄 Backwards, 01938 becomes 83910, which is not a ZIP code at all.
  • 👥 47 other ZIP codes are made of exactly the same digits (01983, 03819, 08319, 09138, 09183, 09813, …). The farthest-flung twin is 09831 in APO AE, a military post office, 7,170 miles away.
  • 🧭 Farther north than 80% of all ZIP codes, and farther east than 96%.
  • 🎯1,448 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 01938 and you would come out at 42.69°S, 109.16°E — 827 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 02m.
  • 📏 At 32.1 square miles of land, 01938 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 01938 today
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🌋 Shake report
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Source: USGS.

People and housing

Population13,930This ZIP13,930
Households5,709This ZIP5,709
Housing units6,224This ZIP6,224
Median age47.2This ZIP47.2Massachusetts40.0US 38.9
Median household income$138,750This ZIP$138,750Massachusetts$103,960US $80,734
Median home value$745,400This ZIP$745,400Massachusetts$562,100US $332,700
Median gross rent$1,598This ZIP$1,598Massachusetts$1,762US $1,413
Bachelor's degree or higher60.2%This ZIP60.2%
Mean commute29.4 minThis ZIP29.4 min
Population density433.9 / sq miThis ZIP433.9 / sq mi

Business and tax activity

Business establishments372This ZIP372
Employees5,007This ZIP5,007
Annual payroll$438,570,000This ZIP$438,570,000
Tax returns filed7,570This ZIP7,570
Total adjusted gross income$1,118,656,000This ZIP$1,118,656,000

Land area

Land area32.11 sq miThis ZIP32.11 sq mi
Water area6.42 sq miThis ZIP6.42 sq mi

Other place names in 01938

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

ZIP codes near 01938

ZIPCityDistance
01969 Rowley, MA 3.4 mi
01936 Hamilton, MA 4.1 mi
01961 Peabody, MA 4.1 mi
01971 Salem, MA 4.1 mi
01982 South Hamilton, MA 4.3 mi
01929 Essex, MA 4.7 mi
01951 Newbury, MA 6.0 mi
01983 Topsfield, MA 6.1 mi
01922 Byfield, MA 6.2 mi
01984 Wenham, MA 6.3 mi

Find every ZIP code within 10 miles of 01938 →

Questions about this ZIP code

Where is ZIP code 01938?

01938 is in Ipswich, Massachusetts, in Essex County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 42.6865, -70.8396.

What county is 01938 in?

01938 lies in Essex County.

What area code is 01938?

Ipswich uses area codes 978 and 351, from NANPA's telephone records.

What time zone is 01938 in?

01938 uses America/New_York.

How many people live in 01938?

About 13,930 people live in ZIP code 01938, in 5,709 households, at 433.9 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 01938?

$138,750 a year, against $103,960 across Massachusetts.

What ZIP codes are near 01938?

The closest are 01969 (3.4 mi), 01936 (4.1 mi), 01961 (4.1 mi), 01971 (4.1 mi) and 01982 (4.3 mi).

Is 01938 a PO Box ZIP code?

01938 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “01938 ZIP Code — Ipswich, Massachusetts (Essex County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/01938

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