21913
ZIP 21913 is Cecilton, Maryland, in Cecil County; area codes 667 and 410; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Cecil
- Metro area
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
- Population
- 820
- Coordinates
- 39.4140, -75.8699
Weather right now
Asking the National Weather Service…
Where 21913 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.
- 🔢 Type 21913 into a pocket calculator and turn it upside down: EIGIZ — not quite a word, sorry.
- ➕ As a number, 21,913 = 17 × 1289. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010110011001 - 🏠 Its numerical neighbours: 21912 (Warwick, MD, 3 mi away) and 21914 (Charlestown, MD, 13 mi away).
- 🔄 Backwards, 21913 becomes 31912, which is not a ZIP code at all.
- 👥 23 other ZIP codes are made of exactly the same digits (11239, 11932, 12139, 12193, 12913, 13219, …). The farthest-flung twin is 93121 in Santa Barbara, CA, 2,422 miles away.
- 🧭 Farther north than 52% of all ZIP codes, and farther east than 85%.
- 🎯1,206 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21913 and you would come out at 39.41°S, 104.13°E — 835 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
- 📏 At 1.2 square miles of land, 21913 is bigger than 9% of ZIP codes — about 585 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 820This ZIP820 |
|---|---|
| Households | 367This ZIP367 |
| Housing units | 402This ZIP402 |
| Median age | 29.9This ZIP29.9Maryland39.4US 38.9 |
| Median household income | $87,813This ZIP$87,813Maryland$103,678US $80,734 |
| Median home value | $241,800This ZIP$241,800Maryland$419,900US $332,700 |
| Median gross rent | $1,149This ZIP$1,149Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 28.4%This ZIP28.4% |
| Mean commute | 29.8 minThis ZIP29.8 min |
| Population density | 678.2 / sq miThis ZIP678.2 / sq mi |
Business and tax activity
| Business establishments | 22This ZIP22 |
|---|---|
| Employees | 163This ZIP163 |
| Annual payroll | $6,700,000This ZIP$6,700,000 |
Land area
| Land area | 1.21 sq miThis ZIP1.21 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Other place names in 21913
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21913
| ZIP | City | Distance |
|---|---|---|
21912 | Warwick, MD | 2.8 mi |
21930 | Georgetown, MD | 3.2 mi |
21919 | Earleville, MD | 3.4 mi |
21635 | Galena, MD | 5.6 mi |
21915 | Chesapeake City, MD | 5.8 mi |
21650 | Massey, MD | 7.9 mi |
21645 | Kennedyville, MD | 8.2 mi |
21667 | Still Pond, MD | 10.9 mi |
21651 | Millington, MD | 10.9 mi |
21610 | Betterton, MD | 11.3 mi |
Find every ZIP code within 10 miles of 21913 →
Questions about this ZIP code
Where is ZIP code 21913?
21913 is in Cecilton, Maryland, in Cecil County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 39.4140, -75.8699.
What county is 21913 in?
21913 lies in Cecil County.
What area code is 21913?
Cecilton uses area codes 667 and 410, from NANPA's telephone records.
What time zone is 21913 in?
21913 uses America/New_York.
How many people live in 21913?
About 820 people live in ZIP code 21913, in 367 households, at 678.2 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 21913?
$87,813 a year, against $103,678 across Maryland.
What ZIP codes are near 21913?
The closest are 21912 (2.8 mi), 21930 (3.2 mi), 21919 (3.4 mi), 21635 (5.6 mi) and 21915 (5.8 mi).
Is 21913 a PO Box ZIP code?
21913 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21913 ZIP Code — Cecilton, Maryland (Cecil County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21913
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21913.json Underlying data is public domain or openly licensed — sources, vintages and licences.