ZIP code 21228
Where is ZIP code 21228?
Catonsville, Maryland
Baltimore County · Standard ZIP code
ZIP code 21228 belongs to Catonsville, Maryland in Baltimore County. 21228 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 410, 443 and 667. About 50,492 people live in the 21228 area, where the median household income is $112,656. The closest ZIP codes are 21250 (Baltimore, 2.5 mi southeast), 21229 (Baltimore, 2.7 mi east) and 21207 (Gwynn Oak, 3.6 mi north).
| ZIP code | 21228 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Catonsville |
| Also accepted | Baltimore |
| State | Maryland (MD) |
| County | Baltimore County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.2782, -76.7401 map |
| 3-digit prefix | 212 |
Population and income in 21228
| Population | 50,492 · higher than 96% of Maryland ZIP codes |
|---|---|
| People per square mile | 3,241 · higher than 85% of Maryland ZIP codes |
| Median age | 42.2 years · higher than 52% of Maryland ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $112,656 · higher than 55% of Maryland ZIP codes |
| Income per person | $54,810 |
| Below the poverty line | 8.1% |
| Bachelor’s degree or higher | 53% of adults 25+ |
| Median home value | $404,700 · lower than 52% of Maryland ZIP codes |
| Median rent | $1,701 a month |
| Housing units | 20,482 |
| Households | 19,788 (2.47 people on average) |
| Owners / renters | 71% / 29% |
| Land area | 15.58 sq mi (plus 0.04 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21228. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21228
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21250 | Baltimore, MD | 2.5 mi SE | Unique |
| 21229 | Baltimore, MD | 2.7 mi E | Standard |
| 21207 | Gwynn Oak, MD | 3.6 mi N | Standard |
| 21043 | Ellicott City, MD | 3.6 mi SW | Standard |
| 21227 | Halethorpe, MD | 4 mi SE | Standard |
| 21216 | Baltimore, MD | 4.3 mi NE | Standard |
| 21244 | Windsor Mill, MD | 4.5 mi NW | Standard |
| 21223 | Baltimore, MD | 5 mi E | Standard |
| 21075 | Elkridge, MD | 5.1 mi S | Standard |
| 21215 | Baltimore, MD | 5.6 mi NE | Standard |
| 21217 | Baltimore, MD | 5.7 mi E | Standard |
| 21090 | Linthicum Heights, MD | 6.1 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21228 or measure the distance to another ZIP code.
How to address mail to 21228
123 MAIN ST
CATONSVILLE MD 21228
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts BALTIMORE as the city name for 21228. Adding the 4-digit ZIP+4 code (21228-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21228?
- 21228 is a Catonsville, Maryland ZIP code. Baltimore is also accepted as the city name.
- What county is 21228 in?
- ZIP code 21228 is in Baltimore County, Maryland.
- What time zone is ZIP code 21228 in?
- 21228 is in the Eastern Time zone (America/New_York).
- What area code is 21228?
- Phone numbers in ZIP code 21228 use area codes 410, 443 and 667.
- What is the population of ZIP code 21228?
- About 50,492 people live in ZIP code 21228, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21228?
- The median household income in 21228 is $112,656 a year, higher than 55% of Maryland ZIP codes.
- What ZIP codes are near 21228?
- The nearest ZIP codes to 21228 are 21250 (Baltimore, 2.5 miles), 21229 (Baltimore, 2.7 miles), 21207 (Gwynn Oak, 3.6 miles) and 21043 (Ellicott City, 3.6 miles).