21144
ZIP 21144 is Severn, Maryland, in Anne Arundel County; area codes 410, 443 and 667; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Anne Arundel
- Metro area
- Baltimore-Columbia-Towson, MD
- Population
- 37,118
- Coordinates
- 39.1206, -76.6776
Weather right now
Asking the National Weather Service…
Where 21144 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 21144 into a pocket calculator and turn it upside down: hhIIZ — not quite a word, sorry.
- ➕ As a number, 21,144 = 2 × 2 × 2 × 3 × 881. Its digits add up to 12, a total 940 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101001010011000 - 🏠 Its numerical neighbours: 21140 (Riva, MD, 13 mi away) and 21146 (Severna Park, MD, 7 mi away).
- 🔄 Backwards, 21144 becomes 44112 — and that is a real ZIP code: Cleveland, OH, 307 miles away.
- 👥 18 other ZIP codes are made of exactly the same digits (11424, 12144, 12414, 12441, 14214, 14241, …). The farthest-flung twin is 42411 in Fredonia, KY, 629 miles away.
- 🧭 Farther north than 50% of all ZIP codes, and farther east than 83%.
- 🎯1,166 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21144 and you would come out at 39.12°S, 103.32°E — 860 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
- 📏 At 16.5 square miles of land, 21144 is bigger than 34% of ZIP codes — room for about 13 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 37,118This ZIP37,118 |
|---|---|
| Households | 13,019This ZIP13,019 |
| Housing units | 13,466This ZIP13,466 |
| Median age | 37.7This ZIP37.7Maryland39.4US 38.9 |
| Median household income | $136,684This ZIP$136,684Maryland$103,678US $80,734 |
| Median home value | $483,700This ZIP$483,700Maryland$419,900US $332,700 |
| Median gross rent | $2,026This ZIP$2,026Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 43.5%This ZIP43.5% |
| Mean commute | 28.0 minThis ZIP28.0 min |
| Population density | 2,248.5 / sq miThis ZIP2,248.5 / sq mi |
Business and tax activity
| Business establishments | 344This ZIP344 |
|---|---|
| Employees | 4,418This ZIP4,418 |
| Annual payroll | $210,883,000This ZIP$210,883,000 |
| Tax returns filed | 18,650This ZIP18,650 |
| Total adjusted gross income | $1,726,797,000This ZIP$1,726,797,000 |
Land area
| Land area | 16.51 sq miThis ZIP16.51 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 21144
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21144
| ZIP | City | Distance |
|---|---|---|
21077 | Harmans, MD | 2.9 mi |
21108 | Millersville, MD | 3.7 mi |
21061 | Glen Burnie, MD | 3.7 mi |
21240 | Baltimore, MD | 3.8 mi |
20755 | Fort George G Meade, MD | 3.9 mi |
21076 | Hanover, MD | 4.3 mi |
21113 | Odenton, MD | 4.4 mi |
21054 | Gambrills, MD | 4.5 mi |
20701 | Annapolis Junction, MD | 6.0 mi |
21090 | Linthicum Heights, MD | 6.2 mi |
Find every ZIP code within 10 miles of 21144 →
Questions about this ZIP code
Where is ZIP code 21144?
21144 is in Severn, Maryland, in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.1206, -76.6776.
What county is 21144 in?
21144 lies in Anne Arundel County.
What area code is 21144?
Severn uses area codes 410, 443 and 667, from NANPA's telephone records.
What time zone is 21144 in?
21144 uses America/New_York.
How many people live in 21144?
About 37,118 people live in ZIP code 21144, in 13,019 households, at 2,248.5 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 21144?
$136,684 a year, against $103,678 across Maryland.
What ZIP codes are near 21144?
The closest are 21077 (2.9 mi), 21108 (3.7 mi), 21061 (3.7 mi), 21240 (3.8 mi) and 20755 (3.9 mi).
Is 21144 a PO Box ZIP code?
21144 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21144 ZIP Code — Severn, Maryland (Anne Arundel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21144
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21144.json Underlying data is public domain or openly licensed — sources, vintages and licences.