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zipcodes.pro — ZIP/21776

21776

ZIP 21776 is New Windsor, Maryland, mostly in Carroll County; area codes 443, 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Carroll +1 more
Population
6,261
Coordinates
39.5180, -77.0997
☼ Live from 21776 — New Windsor, MD

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Local time: —

Where 21776 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 21776
  • 🔢 Type 21776 into a pocket calculator and turn it upside down: gLLIZ — not quite a word, sorry.
  • ➕ As a number, 21,776 = 2 × 2 × 2 × 2 × 1361. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010100010000
  • 🏠 Its numerical neighbours: 21775 (New Midway, MD, 11 mi away) and 21777 (Point Of Rocks, MD, 28 mi away).
  • 🔄 Backwards, 21776 becomes 67712, which is not a ZIP code at all.
  • 👥 29 other ZIP codes are made of exactly the same digits (12767, 12776, 16727, 17267, 17726, 17762, …). The farthest-flung twin is 76712 in Woodway, TX, 1,257 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther east than 81%.
  • 🎯1,140 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21776 and you would come out at 39.52°S, 102.90°E — 894 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
  • 📏 At 35.5 square miles of land, 21776 is bigger than 50% of ZIP codes — room for about 27 Central Parks.
🌙 The sky over 21776 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,261This ZIP6,261
Households2,346This ZIP2,346
Housing units2,378This ZIP2,378
Median age44.1This ZIP44.1Maryland39.4US 38.9
Median household income$133,409This ZIP$133,409Maryland$103,678US $80,734
Median home value$461,600This ZIP$461,600Maryland$419,900US $332,700
Median gross rent$1,297This ZIP$1,297Maryland$1,705US $1,413
Bachelor's degree or higher38.0%This ZIP38.0%
Mean commute42.9 minThis ZIP42.9 min
Population density176.6 / sq miThis ZIP176.6 / sq mi

Business and tax activity

Business establishments123This ZIP123
Employees1,211This ZIP1,211
Annual payroll$73,365,000This ZIP$73,365,000
Tax returns filed3,010This ZIP3,010
Total adjusted gross income$302,995,000This ZIP$302,995,000

Land area

Land area35.45 sq miThis ZIP35.45 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Counties 21776 spans

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

CountyShare of this ZIP
Carroll County 79.2%
Frederick County 20.8%

Other place names in 21776

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

ZIP codes near 21776

ZIPCityDistance
21791 Union Bridge, MD 4.8 mi
21792 Unionville, MD 5.5 mi
21157 Westminster, MD 6.5 mi
21762 Libertytown, MD 8.3 mi
21771 Mount Airy, MD 9.1 mi
21048 Finksburg, MD 9.4 mi
21757 Keymar, MD 9.9 mi
21158 Westminster, MD 10.0 mi
21798 Woodsboro, MD 10.5 mi
21784 Sykesville, MD 10.5 mi

Find every ZIP code within 10 miles of 21776 →

Questions about this ZIP code

Where is ZIP code 21776?

21776 is in New Windsor, Maryland, in Carroll County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.5180, -77.0997.

What county is 21776 in?

21776 spans 2 counties: Carroll County and Frederick County. Most of it falls in Carroll 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 21776?

New Windsor uses area codes 443, 667 and 410, from NANPA's telephone records.

What time zone is 21776 in?

21776 uses America/New_York.

How many people live in 21776?

About 6,261 people live in ZIP code 21776, in 2,346 households, at 176.6 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 21776?

$133,409 a year, against $103,678 across Maryland.

What ZIP codes are near 21776?

The closest are 21791 (4.8 mi), 21792 (5.5 mi), 21157 (6.5 mi), 21762 (8.3 mi) and 21771 (9.1 mi).

Is 21776 a PO Box ZIP code?

21776 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “21776 ZIP Code — New Windsor, Maryland (Carroll County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21776

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21776.json

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