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zipcodes.pro — ZIP/21663

21663

ZIP 21663 is Saint Michaels, Maryland, in Talbot County; area codes 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Talbot
Metro area
Easton, MD
Population
3,764
Coordinates
38.7880, -76.2312
☼ Live from 21663 — Saint Michaels, MD

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Where 21663 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 21663
  • 🔢 Type 21663 into a pocket calculator and turn it upside down: EggIZ — not quite a word, sorry.
  • ➕ As a number, 21,663 = 3 × 3 × 29 × 83. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010010011111
  • 🏠 Its numerical neighbours: 21662 (Royal Oak, MD, 5 mi away) and 21664 (Secretary, MD, 20 mi away).
  • 🔄 Backwards, 21663 becomes 36612 — and that is a real ZIP code: Mobile, AL, 872 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (13626, 13662, 16236, 16263, 16326, 16362, …). The farthest-flung twin is 66213 in Overland Park, KS, 992 miles away.
  • 🧭 Farther south than 53% of all ZIP codes, and farther east than 84%.
  • 🎯1,194 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21663 and you would come out at 38.79°S, 103.77°E — 828 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 53m of daylight. Shortest: 9h 27m.
  • 📏 At 12.2 square miles of land, 21663 is bigger than 30% of ZIP codes — room for about 9.3 Central Parks.
🌙 The sky over 21663 today
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🌋 Shake report
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Source: USGS.

People and housing

Population3,764This ZIP3,764
Households1,677This ZIP1,677
Housing units2,204This ZIP2,204
Median age56.0This ZIP56.0Maryland39.4US 38.9
Median household income$89,775This ZIP$89,775Maryland$103,678US $80,734
Median home value$650,500This ZIP$650,500Maryland$419,900US $332,700
Median gross rent$1,067This ZIP$1,067Maryland$1,705US $1,413
Bachelor's degree or higher52.8%This ZIP52.8%
Mean commute23.1 minThis ZIP23.1 min
Population density308.7 / sq miThis ZIP308.7 / sq mi

Business and tax activity

Business establishments148This ZIP148
Employees1,396This ZIP1,396
Annual payroll$59,163,000This ZIP$59,163,000
Tax returns filed1,610This ZIP1,610
Total adjusted gross income$373,437,000This ZIP$373,437,000

Land area

Land area12.19 sq miThis ZIP12.19 sq mi
Water area7.52 sq miThis ZIP7.52 sq mi

Other place names in 21663

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

ZIP codes near 21663

ZIPCityDistance
21647 Mcdaniel, MD 2.9 mi
21612 Bozman, MD 3.1 mi
21676 Wittman, MD 3.8 mi
21624 Claiborne, MD 4.0 mi
21653 Newcomb, MD 4.3 mi
21662 Royal Oak, MD 5.4 mi
21652 Neavitt, MD 5.5 mi
21601 Easton, MD 7.7 mi
21665 Sherwood, MD 7.7 mi
21671 Tilghman, MD 8.5 mi

Find every ZIP code within 10 miles of 21663 →

Questions about this ZIP code

Where is ZIP code 21663?

21663 is in Saint Michaels, Maryland, in Talbot County, part of the Easton, MD micropolitan area. Its published point location is 38.7880, -76.2312.

What county is 21663 in?

21663 lies in Talbot County.

What area code is 21663?

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

What time zone is 21663 in?

21663 uses America/New_York.

How many people live in 21663?

About 3,764 people live in ZIP code 21663, in 1,677 households, at 308.7 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 21663?

$89,775 a year, against $103,678 across Maryland.

What ZIP codes are near 21663?

The closest are 21647 (2.9 mi), 21612 (3.1 mi), 21676 (3.8 mi), 21624 (4 mi) and 21653 (4.3 mi).

Is 21663 a PO Box ZIP code?

21663 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21663 ZIP Code — Saint Michaels, Maryland (Talbot County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21663

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