ZIP code 21120: Parkton, MD
21120 is a ZIP code in Parkton, Maryland, mainly in Baltimore County, part of the Baltimore-Columbia-Towson, MD metro area. About 7,440 people live here.
- Population
- 7,440
- Median household income
- $162,052
- Typical home value
- $642,300+2.1% in 12 months
- Median rent
- $1,271gross, per month
- Median age
- 40.8
- Homeowners
- 93.8%of occupied homes
Shaded: ZIP code 21120's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21120 details
| City | Parkton |
|---|---|
| State | Maryland |
| County | Baltimore County |
| Metro area | Baltimore-Columbia-Towson, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 42 sq mi, plus 0.7 sq mi of water |
| Population density | 177 people per sq mi |
| Bachelor's degree or higher | 64.2% of adults 25+ |
| Average commute | 36.9 minutes |
| Center coordinates | 39.64620, -76.67485 |
ZIP codes near 21120
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21053 | Freeland, MD | 4.1 mi | 2,929 |
| 21105 | Maryland Line, MD | 4.9 mi | 36 |
| 21161 | White Hall, MD | 5.9 mi | 5,221 |
| 21152 | Sparks Glencoe, MD | 6.3 mi | 6,459 |
| 21111 | Monkton, MD | 6.7 mi | 4,714 |
| 17349 | New Freedom, PA | 6.9 mi | 8,254 |
| 17355 | Railroad, PA | 7.9 mi | 322 |
| 17361 | Shrewsbury, PA | 8.3 mi | 6,156 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 21120?
A typical home in ZIP code 21120 is worth about $642,300 (Zillow Home Value Index). The median household here earns $162,052 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $642,300 homeWhat can a $162,052 income afford?Rental property numbers
About ZIP code 21120
What city is ZIP code 21120?
ZIP code 21120 is in Parkton, MD, in Baltimore County.
What county is ZIP code 21120 in?
21120 is mainly in Baltimore County, Maryland.
What is the population of ZIP code 21120?
About 7,440 people live in ZIP code 21120, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21120 in?
21120 is in Eastern Time (UTC−5). It observes daylight saving time.