ZIP code 21128
Where is ZIP code 21128?
Perry Hall, Maryland
Baltimore County · Standard ZIP code
ZIP code 21128 belongs to Perry Hall, Maryland in Baltimore County. 21128 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 15,501 people live in the 21128 area, where the median household income is $128,069. The closest ZIP codes are 21236 (Nottingham, 2 mi west), 21162 (White Marsh, 2.1 mi east) and 21156 (Upper Falls, 3.8 mi northeast).
| ZIP code | 21128 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Perry Hall |
| State | Maryland (MD) |
| County | Baltimore County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.401, -76.451 map |
| 3-digit prefix | 211 |
Population and income in 21128
| Population | 15,501 · higher than 68% of Maryland ZIP codes |
|---|---|
| People per square mile | 2,277 · higher than 77% of Maryland ZIP codes |
| Median age | 40.1 years · lower than 61% of Maryland ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $128,069 · higher than 69% of Maryland ZIP codes |
| Income per person | $54,499 |
| Below the poverty line | 3.1% |
| Bachelor’s degree or higher | 55% of adults 25+ |
| Median home value | $449,500 · higher than 57% of Maryland ZIP codes |
| Median rent | $1,935 a month |
| Housing units | 5,917 |
| Households | 5,609 (2.75 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 6.81 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21128. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21128
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21236 | Nottingham, MD | 2 mi W | Standard |
| 21162 | White Marsh, MD | 2.1 mi E | Standard |
| 21156 | Upper Falls, MD | 3.8 mi NE | Standard |
| 21087 | Kingsville, MD | 4.3 mi NE | Standard |
| 21220 | Middle River, MD | 4.6 mi SE | Standard |
| 21234 | Parkville, MD | 4.9 mi W | Standard |
| 21051 | Fork, MD | 5 mi N | Standard |
| 21027 | Chase, MD | 5 mi SE | PO Box only |
| 21082 | Hydes, MD | 5.1 mi N | Standard |
| 21057 | Glen Arm, MD | 5.2 mi NW | Standard |
| 21237 | Rosedale, MD | 5.2 mi SW | Standard |
| 21085 | Joppa, MD | 5.4 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21128 or measure the distance to another ZIP code.
How to address mail to 21128
123 MAIN ST
PERRY HALL MD 21128
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Perryhall: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (21128-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21128?
- 21128 is a Perry Hall, Maryland ZIP code.
- What county is 21128 in?
- ZIP code 21128 is in Baltimore County, Maryland.
- What time zone is ZIP code 21128 in?
- 21128 is in the Eastern Time zone (America/New_York).
- What area code is 21128?
- Phone numbers in ZIP code 21128 use area codes 410, 443 and 667.
- What is the population of ZIP code 21128?
- About 15,501 people live in ZIP code 21128, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21128?
- The median household income in 21128 is $128,069 a year, higher than 69% of Maryland ZIP codes.
- What ZIP codes are near 21128?
- The nearest ZIP codes to 21128 are 21236 (Nottingham, 2 miles), 21162 (White Marsh, 2.1 miles), 21156 (Upper Falls, 3.8 miles) and 21087 (Kingsville, 4.3 miles).