ZIP code 21105: Maryland Line, MD
21105 is a ZIP code in Maryland Line, Maryland, mainly in Baltimore County, part of the Baltimore-Columbia-Towson, MD metro area. About 36 people live here.
- Population
- 36
- Median household income
- —
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- —
- Homeowners
- 0%of occupied homes
Shaded: ZIP code 21105's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21105 details
| City | Maryland Line |
|---|---|
| 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 | 0.1 sq mi |
| Population density | 400 people per sq mi |
| Bachelor's degree or higher | 38.9% of adults 25+ |
| Center coordinates | 39.71513, -76.65228 |
ZIP codes near 21105
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 17349 | New Freedom, PA | 2.1 mi | 8,254 |
| 21053 | Freeland, MD | 3.6 mi | 2,929 |
| 17361 | Shrewsbury, PA | 3.8 mi | 6,156 |
| 17355 | Railroad, PA | 3.9 mi | 322 |
| 21120 | Parkton, MD | 4.9 mi | 7,440 |
| 17363 | Stewartstown, PA | 5.1 mi | 8,553 |
| 21161 | White Hall, MD | 6.0 mi | 5,221 |
| 17327 | Glen Rock, PA | 7.0 mi | 7,828 |
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
About ZIP code 21105
What city is ZIP code 21105?
ZIP code 21105 is in Maryland Line, MD, in Baltimore County.
What county is ZIP code 21105 in?
21105 is mainly in Baltimore County, Maryland.
What is the population of ZIP code 21105?
About 36 people live in ZIP code 21105, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21105 in?
21105 is in Eastern Time (UTC−5). It observes daylight saving time.