ZIP code 21120
Where is ZIP code 21120?
Parkton, Maryland
Baltimore County · Standard ZIP code
ZIP code 21120 belongs to Parkton, Maryland in Baltimore County. 21120 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 223, 410, 443, 667 and 717. About 7,440 people live in the 21120 area, where the median household income is $162,052. The closest ZIP codes are 21053 (Freeland, 4.4 mi northwest), 21105 (Maryland Line, 4.8 mi north) and 21161 (White Hall, 5.9 mi east).
| ZIP code | 21120 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Parkton |
| Also accepted | Bentley Spgs, Bentley Springs |
| State | Maryland (MD) |
| County | Baltimore County |
| Time zone | Eastern Time · now |
| Area codes | 223, 410, 443, 667, 717 |
| Coordinates | 39.6422, -76.6737 map |
| 3-digit prefix | 211 |
Population and income in 21120
| Population | 7,440 · higher than 57% of Maryland ZIP codes |
|---|---|
| People per square mile | 177 · lower than 67% of Maryland ZIP codes |
| Median age | 40.8 years · lower than 58% of Maryland ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $162,052 · higher than 86% of Maryland ZIP codes |
| Income per person | $74,584 |
| Below the poverty line | 2.8% |
| Bachelor’s degree or higher | 64% of adults 25+ |
| Median home value | $580,900 · higher than 80% of Maryland ZIP codes |
| Median rent | $1,271 a month |
| Housing units | 2,622 |
| Households | 2,599 (2.85 people on average) |
| Owners / renters | 94% / 6.2% |
| Land area | 42 sq mi (plus 0.72 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21120. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21120
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21053 | Freeland, MD | 4.4 mi NW | Standard |
| 21105 | Maryland Line, MD | 4.8 mi N | PO Box only |
| 21161 | White Hall, MD | 5.9 mi E | Standard |
| 21152 | Sparks Glencoe, MD | 6.5 mi S | Standard |
| 21111 | Monkton, MD | 6.6 mi SE | Standard |
| 17349 | New Freedom, PA | 6.9 mi N | Standard |
| 17355 | Railroad, PA | 8.1 mi N | PO Box only |
| 17361 | Shrewsbury, PA | 8.1 mi N | Standard |
| 21155 | Upperco, MD | 8.4 mi SW | Standard |
| 21023 | Butler, MD | 8.4 mi SW | PO Box only |
| 17363 | Stewartstown, PA | 9.9 mi NE | Standard |
| 21074 | Hampstead, MD | 10.3 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21120 or measure the distance to another ZIP code.
How to address mail to 21120
123 MAIN ST
PARKTON MD 21120
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts BENTLEY SPGS and BENTLEY SPRINGS as the city name for 21120. Adding the 4-digit ZIP+4 code (21120-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21120?
- 21120 is a Parkton, Maryland ZIP code. Bentley Spgs and Bentley Springs are also accepted as the city name.
- What county is 21120 in?
- ZIP code 21120 is in Baltimore County, Maryland.
- What time zone is ZIP code 21120 in?
- 21120 is in the Eastern Time zone (America/New_York).
- What area code is 21120?
- Phone numbers in ZIP code 21120 use area codes 223, 410, 443, 667 and 717.
- What is the population of ZIP code 21120?
- About 7,440 people live in ZIP code 21120, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21120?
- The median household income in 21120 is $162,052 a year, higher than 86% of Maryland ZIP codes.
- What ZIP codes are near 21120?
- The nearest ZIP codes to 21120 are 21053 (Freeland, 4.4 miles), 21105 (Maryland Line, 4.8 miles), 21161 (White Hall, 5.9 miles) and 21152 (Sparks Glencoe, 6.5 miles).