Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/21914

21914

ZIP 21914 is Charlestown, Maryland, in Cecil County; area codes 443, 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Cecil
Population
810
Coordinates
39.5751, -75.9846
☼ Live from 21914 — Charlestown, MD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 21914 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 21914
  • 🔢 Type 21914 into a pocket calculator and turn it upside down: hIGIZ — not quite a word, sorry.
  • ➕ As a number, 21,914 = 2 × 10957. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010110011010
  • 🏠 Its numerical neighbours: 21913 (Cecilton, MD, 13 mi away) and 21915 (Chesapeake City, MD, 9 mi away).
  • 🔄 Backwards, 21914 becomes 41912, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (11249, 11429, 11942, 12149, 12194, 12419, …). The farthest-flung twin is 94121 in San Francisco, CA, 2,484 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 85%.
  • 🎯1,198 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21914 and you would come out at 39.58°S, 104.02°E — 846 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
  • 📏 At 0.731 square miles of land, 21914 is bigger than 7% of ZIP codes — about 354 football fields.
🌙 The sky over 21914 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population810This ZIP810
Households332This ZIP332
Housing units351This ZIP351
Median age46.3This ZIP46.3Maryland39.4US 38.9
Median household income$66,806This ZIP$66,806Maryland$103,678US $80,734
Median home value$288,500This ZIP$288,500Maryland$419,900US $332,700
Median gross rent$1,522This ZIP$1,522Maryland$1,705US $1,413
Bachelor's degree or higher25.1%This ZIP25.1%
Mean commute30.1 minThis ZIP30.1 min
Population density1,108.1 / sq miThis ZIP1,108.1 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees100This ZIP100
Annual payroll$3,886,000This ZIP$3,886,000

Land area

Land area0.73 sq miThis ZIP0.73 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 21914

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

ZIP codes near 21914

ZIPCityDistance
21901 North East, MD 1.1 mi
21903 Perryville, MD 3.2 mi
21902 Perry Point, MD 4.5 mi
21904 Port Deposit, MD 5.2 mi
21921 Elkton, MD 7.5 mi
21916 Childs, MD 7.8 mi
21922 Elkton, MD 8.3 mi
21078 Havre De Grace, MD 8.4 mi
21911 Rising Sun, MD 8.7 mi
21917 Colora, MD 9.0 mi

Find every ZIP code within 10 miles of 21914 →

Questions about this ZIP code

Where is ZIP code 21914?

21914 is in Charlestown, Maryland, in Cecil County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.5751, -75.9846.

What county is 21914 in?

21914 lies in Cecil County.

What area code is 21914?

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

What time zone is 21914 in?

21914 uses America/New_York.

How many people live in 21914?

About 810 people live in ZIP code 21914, in 332 households, at 1,108.1 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 21914?

$66,806 a year, against $103,678 across Maryland.

What ZIP codes are near 21914?

The closest are 21901 (1.1 mi), 21903 (3.2 mi), 21902 (4.5 mi), 21904 (5.2 mi) and 21921 (7.5 mi).

Is 21914 a PO Box ZIP code?

21914 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “21914 ZIP Code — Charlestown, Maryland (Cecil County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21914

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21914.json

Underlying data is public domain or openly licensed — sources, vintages and licences.