21285
ZIP 21285 is in Towson, Maryland, in Baltimore County; area codes 410, 443 and 667; Eastern time. Towson has 5 ZIP codes; the others are 21204, 21252, 21284 and 21286.
- Type
- Standard
- Time zone
- America/New_York
- County
- Baltimore
- Metro area
- Baltimore-Columbia-Towson, MD
- Population
- 3
- Coordinates
- 39.3875, -76.6170
Weather right now
Asking the National Weather Service…
Where 21285 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 21285 into a pocket calculator and turn it upside down: SBZIZ — not quite a word, sorry.
- ➕ As a number, 21,285 = 3 × 3 × 5 × 11 × 43. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101001100100101 - 🏠 Its numerical neighbours: 21284 (Towson, MD, 1 mi away) and 21286 (Towson, MD, 3 mi away).
- 🔄 Backwards, 21285 becomes 58212 — and that is a real ZIP code: Aneta, ND, 1,209 miles away.
- 👥 31 other ZIP codes are made of exactly the same digits (12528, 12582, 12852, 15228, 15282, 15822, …). The farthest-flung twin is 85122 in Casa Grande, AZ, 1,997 miles away.
- 🧭 Farther north than 52% of all ZIP codes, and farther east than 83%.
- 🎯1,167 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21285 and you would come out at 39.39°S, 103.38°E — 867 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
- 📏 At 0.179 square miles of land, 21285 is bigger than 2% of ZIP codes — about 87 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3This ZIP3 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Bachelor's degree or higher | 0.0% |
| Population density | 16.8 / sq miThis ZIP16.8 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 196This ZIP196 |
| Annual payroll | $34,988,000This ZIP$34,988,000 |
Land area
| Land area | 0.18 sq miThis ZIP0.18 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 21285
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21285
| ZIP | City | Distance |
|---|---|---|
21252 | Towson, MD | 0.5 mi |
21284 | Towson, MD | 1.3 mi |
21204 | Towson, MD | 1.4 mi |
21212 | Baltimore, MD | 1.4 mi |
21239 | Baltimore, MD | 2.2 mi |
21139 | Riderwood, MD | 2.3 mi |
21210 | Baltimore, MD | 2.3 mi |
21209 | Baltimore, MD | 2.6 mi |
21286 | Towson, MD | 2.9 mi |
21022 | Brooklandville, MD | 3.0 mi |
Find every ZIP code within 10 miles of 21285 →
Questions about this ZIP code
Where is ZIP code 21285?
21285 is in Towson, Maryland, in Baltimore County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.3875, -76.6170.
What county is 21285 in?
21285 lies in Baltimore County.
What area code is 21285?
Towson uses area codes 410, 443 and 667, from NANPA's telephone records.
What time zone is 21285 in?
21285 uses America/New_York.
How many people live in 21285?
About 3 people live in ZIP code 21285, at 16.8 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 21285?
The closest are 21252 (0.5 mi), 21284 (1.3 mi), 21204 (1.4 mi), 21212 (1.4 mi) and 21239 (2.2 mi).
Is 21285 a PO Box ZIP code?
21285 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21285 ZIP Code — Towson, Maryland (Baltimore County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21285
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21285.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.