ZIP code 21111: Monkton, MD
21111 is a ZIP code in Monkton, Maryland, mainly in Baltimore County, part of the Baltimore-Columbia-Towson, MD metro area. About 4,714 people live here.
- Population
- 4,714
- Median household income
- $136,304
- Typical home value
- $720,200+1.9% in 12 months
- Median rent
- $1,359gross, per month
- Median age
- 48.7
- Homeowners
- 95.5%of occupied homes
Shaded: ZIP code 21111's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21111 details
| City | Monkton |
|---|---|
| State | Maryland |
| County | Baltimore County (also partly Harford County) |
| Metro area | Baltimore-Columbia-Towson, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 35.4 sq mi, plus 0.2 sq mi of water |
| Population density | 133 people per sq mi |
| Bachelor's degree or higher | 63.7% of adults 25+ |
| Average commute | 31.9 minutes |
| Center coordinates | 39.57554, -76.58969 |
ZIP codes near 21111
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21131 | Phoenix, MD | 4.9 mi | 7,141 |
| 21152 | Sparks Glencoe, MD | 5.3 mi | 6,459 |
| 21161 | White Hall, MD | 6.0 mi | 5,221 |
| 21120 | Parkton, MD | 6.7 mi | 7,440 |
| 21013 | Baldwin, MD | 6.9 mi | 5,610 |
| 21065 | Hunt Valley, MD | 6.9 mi | — |
| 21084 | Jarrettsville, MD | 7.1 mi | 7,070 |
| 21031 | Hunt Valley, MD | 7.1 mi | 26 |
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 21111?
A typical home in ZIP code 21111 is worth about $720,200 (Zillow Home Value Index). The median household here earns $136,304 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $720,200 homeWhat can a $136,304 income afford?Rental property numbers
About ZIP code 21111
What city is ZIP code 21111?
ZIP code 21111 is in Monkton, MD, in Baltimore County.
What county is ZIP code 21111 in?
21111 is mainly in Baltimore County, Maryland, and partly in Harford County.
What is the population of ZIP code 21111?
About 4,714 people live in ZIP code 21111, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21111 in?
21111 is in Eastern Time (UTC−5). It observes daylight saving time.