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zipcodes.pro — ZIP/21668

21668

ZIP 21668 is Sudlersville, 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
2,011
Coordinates
39.1906, -75.8505
☼ Live from 21668 — Sudlersville, MD

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Local time: —

Where 21668 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 21668
  • 🔢 Type 21668 into a pocket calculator and turn it upside down: BggIZ — not quite a word, sorry.
  • ➕ As a number, 21,668 = 2 × 2 × 5417. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010010100100
  • 🏠 Its numerical neighbours: 21667 (Still Pond, MD, 15 mi away) and 21669 (Taylors Island, MD, 56 mi away).
  • 🔄 Backwards, 21668 becomes 86612, which is not a ZIP code at all.
  • 👥 18 other ZIP codes are made of exactly the same digits (12866, 16682, 16826, 18626, 21866, 26681, …). The farthest-flung twin is 81626 in Craig, CO, 1,675 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 85%.
  • 🎯1,209 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21668 and you would come out at 39.19°S, 104.15°E — 825 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 45.3 square miles of land, 21668 is bigger than 57% of ZIP codes — room for about 34 Central Parks.
🌙 The sky over 21668 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,011This ZIP2,011
Households773This ZIP773
Housing units803This ZIP803
Median age49.4This ZIP49.4Maryland39.4US 38.9
Median household income$78,672This ZIP$78,672Maryland$103,678US $80,734
Median home value$348,400This ZIP$348,400Maryland$419,900US $332,700
Median gross rent$1,037This ZIP$1,037Maryland$1,705US $1,413
Bachelor's degree or higher18.2%This ZIP18.2%
Mean commute36.0 minThis ZIP36.0 min
Population density44.4 / sq miThis ZIP44.4 / sq mi

Business and tax activity

Business establishments33This ZIP33
Employees301This ZIP301
Annual payroll$19,460,000This ZIP$19,460,000
Tax returns filed820This ZIP820
Total adjusted gross income$60,476,000This ZIP$60,476,000

Land area

Land area45.29 sq miThis ZIP45.29 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 21668

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

ZIP codes near 21668

ZIPCityDistance
21607 Barclay, MD 3.9 mi
21651 Millington, MD 4.5 mi
21649 Marydel, MD 4.7 mi
21628 Crumpton, MD 4.8 mi
21644 Ingleside, MD 5.2 mi
21670 Templeville, MD 5.9 mi
21623 Church Hill, MD 7.7 mi
21650 Massey, MD 8.6 mi
21640 Henderson, MD 8.6 mi
19953 Hartly, DE 8.8 mi

Find every ZIP code within 10 miles of 21668 →

Questions about this ZIP code

Where is ZIP code 21668?

21668 is in Sudlersville, Maryland, in Queen Anne's County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.1906, -75.8505.

What county is 21668 in?

21668 lies in Queen Anne's County.

What area code is 21668?

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

What time zone is 21668 in?

21668 uses America/New_York.

How many people live in 21668?

About 2,011 people live in ZIP code 21668, in 773 households, at 44.4 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 21668?

$78,672 a year, against $103,678 across Maryland.

What ZIP codes are near 21668?

The closest are 21607 (3.9 mi), 21651 (4.5 mi), 21649 (4.7 mi), 21628 (4.8 mi) and 21644 (5.2 mi).

Is 21668 a PO Box ZIP code?

21668 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21668 ZIP Code — Sudlersville, Maryland (Queen Anne's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21668

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