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zipcodes.pro — ZIP/21628

21628

ZIP 21628 is Crumpton, Maryland, in Queen Anne's County; area codes 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Queen Anne's
Population
248
Coordinates
39.2332, -75.9220
☼ Live from 21628 — Crumpton, MD

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Where 21628 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 21628
  • 🔢 Type 21628 into a pocket calculator and turn it upside down: BZgIZ — not quite a word, sorry.
  • ➕ As a number, 21,628 = 2 × 2 × 5407. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010001111100
  • 🏠 Its numerical neighbours: 21627 (Crocheron, MD, 69 mi away) and 21629 (Denton, MD, 26 mi away).
  • 🔄 Backwards, 21628 becomes 82612, which is not a ZIP code at all.
  • 👥 21 other ZIP codes are made of exactly the same digits (12862, 16228, 16822, 18622, 21286, 21826, …). The farthest-flung twin is 81226 in Florence, CO, 1,565 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 85%.
  • 🎯1,205 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21628 and you would come out at 39.23°S, 104.08°E — 830 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 0.939 square miles of land, 21628 is bigger than 8% of ZIP codes — about 454 football fields.
🌙 The sky over 21628 today
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Source: USGS.

People and housing

Population248This ZIP248
Households127This ZIP127
Housing units177This ZIP177
Median age49.8This ZIP49.8Maryland39.4US 38.9
Median household income$115,417This ZIP$115,417Maryland$103,678US $80,734
Median home value$160,200This ZIP$160,200Maryland$419,900US $332,700
Bachelor's degree or higher20.4%This ZIP20.4%
Population density264.1 / sq miThis ZIP264.1 / sq mi

Business and tax activity

Business establishments4This ZIP4
Employees26This ZIP26
Annual payroll$1,074,000This ZIP$1,074,000

Land area

Land area0.94 sq miThis ZIP0.94 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Other place names in 21628

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

ZIP codes near 21628

ZIPCityDistance
21651 Millington, MD 3.8 mi
21668 Sudlersville, MD 4.8 mi
21645 Kennedyville, MD 6.0 mi
21607 Barclay, MD 7.7 mi
21623 Church Hill, MD 7.9 mi
21650 Massey, MD 8.1 mi
21635 Galena, MD 8.1 mi
21644 Ingleside, MD 8.4 mi
21620 Chestertown, MD 8.8 mi
21649 Marydel, MD 9.5 mi

Find every ZIP code within 10 miles of 21628 →

Questions about this ZIP code

Where is ZIP code 21628?

21628 is in Crumpton, Maryland, in Queen Anne's County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.2332, -75.9220.

What county is 21628 in?

21628 lies in Queen Anne's County.

What area code is 21628?

Crumpton uses area codes 667 and 410, from NANPA's telephone records.

What time zone is 21628 in?

21628 uses America/New_York.

How many people live in 21628?

About 248 people live in ZIP code 21628, in 127 households, at 264.1 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 21628?

$115,417 a year, against $103,678 across Maryland.

What ZIP codes are near 21628?

The closest are 21651 (3.8 mi), 21668 (4.8 mi), 21645 (6 mi), 21607 (7.7 mi) and 21623 (7.9 mi).

Is 21628 a PO Box ZIP code?

21628 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21628 ZIP Code — Crumpton, Maryland (Queen Anne's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21628

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