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zipcodes.pro — ZIP/21657

21657

ZIP 21657 is Queen Anne, Maryland, mostly in Queen Anne's County; area codes 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Queen Anne's +2 more
Population
1,354
Coordinates
38.9386, -75.9811
☼ Live from 21657 — Queen Anne, MD

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Local time: —

Where 21657 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 21657
  • 🔢 Type 21657 into a pocket calculator and turn it upside down: LSgIZ — not quite a word, sorry.
  • ➕ As a number, 21,657 = 3 × 7219. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010010011001
  • 🏠 Its numerical neighbours: 21656 (Price, MD, 9 mi away) and 21658 (Queenstown, MD, 9 mi away).
  • 🔄 Backwards, 21657 becomes 75612, which is not a ZIP code at all.
  • 👥 56 other ZIP codes are made of exactly the same digits (12567, 12765, 15267, 15276, 15627, 15672, …). The farthest-flung twin is 57621 in Bullhead, SD, 1,359 miles away.
  • 🧭 Farther south than 51% 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 21657 and you would come out at 38.94°S, 104.02°E — 822 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 30.4 square miles of land, 21657 is bigger than 46% of ZIP codes — room for about 23 Central Parks.
🌙 The sky over 21657 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,354This ZIP1,354
Households522This ZIP522
Housing units532This ZIP532
Median age58.5This ZIP58.5Maryland39.4US 38.9
Median household income$104,940This ZIP$104,940Maryland$103,678US $80,734
Median home value$359,500This ZIP$359,500Maryland$419,900US $332,700
Median gross rent$1,047This ZIP$1,047Maryland$1,705US $1,413
Bachelor's degree or higher20.9%This ZIP20.9%
Mean commute37.3 minThis ZIP37.3 min
Population density44.5 / sq miThis ZIP44.5 / sq mi

Business and tax activity

Business establishments27This ZIP27
Employees216This ZIP216
Annual payroll$11,325,000This ZIP$11,325,000
Tax returns filed560This ZIP560
Total adjusted gross income$46,085,000This ZIP$46,085,000

Land area

Land area30.43 sq miThis ZIP30.43 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Counties 21657 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Queen Anne's County 76.7%
Talbot County 19.9%
Caroline County 3.4%

Other place names in 21657

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

ZIP codes near 21657

ZIPCityDistance
21641 Hillsboro, MD 2.6 mi
21660 Ridgely, MD 5.1 mi
21625 Cordova, MD 5.1 mi
21679 Wye Mills, MD 6.2 mi
21617 Centreville, MD 8.4 mi
21658 Queenstown, MD 8.8 mi
21656 Price, MD 8.9 mi
21690 Chestertown, MD 8.9 mi
21629 Denton, MD 10.0 mi
21639 Greensboro, MD 10.8 mi

Find every ZIP code within 10 miles of 21657 →

Questions about this ZIP code

Where is ZIP code 21657?

21657 is in Queen Anne, Maryland, in Queen Anne's County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 38.9386, -75.9811.

What county is 21657 in?

21657 spans 3 counties: Queen Anne's County, Talbot County and Caroline County. Most of it falls in Queen Anne's County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 21657?

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

What time zone is 21657 in?

21657 uses America/New_York.

How many people live in 21657?

About 1,354 people live in ZIP code 21657, in 522 households, at 44.5 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 21657?

$104,940 a year, against $103,678 across Maryland.

What ZIP codes are near 21657?

The closest are 21641 (2.6 mi), 21660 (5.1 mi), 21625 (5.1 mi), 21679 (6.2 mi) and 21617 (8.4 mi).

Is 21657 a PO Box ZIP code?

21657 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21657 ZIP Code — Queen Anne, Maryland (Queen Anne's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21657

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21657.json

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