ZIP code 21056: Gibson Island, MD
21056 is a ZIP code in Gibson Island, Maryland, mainly in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metro area. About 291 people live here.
- Population
- 291
- Median household income
- $250,001
- Typical home value
- $3,109,800+9.2% in 12 months
- Median rent
- —gross, per month
- Median age
- 66.6
- Homeowners
- 100%of occupied homes
Shaded: ZIP code 21056's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21056 details
| City | Gibson Island |
|---|---|
| State | Maryland |
| County | Anne Arundel County |
| Metro area | Baltimore-Columbia-Towson, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 1.4 sq mi, plus 0.3 sq mi of water |
| Population density | 211 people per sq mi |
| Bachelor's degree or higher | 93.1% of adults 25+ |
| Center coordinates | 39.07895, -76.43625 |
ZIP codes near 21056
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21122 | Pasadena, MD | 3.7 mi | 61,566 |
| 21012 | Arnold, MD | 3.9 mi | 22,570 |
| 21409 | Annapolis, MD | 4.2 mi | 20,289 |
| 21402 | Annapolis, MD | 6.5 mi | 4,303 |
| 21146 | Severna Park, MD | 6.6 mi | 28,591 |
| 21405 | Annapolis, MD | 6.9 mi | 495 |
| 21404 | Annapolis, MD | 7.6 mi | — |
| 21052 | Fort Howard, MD | 8.7 mi | 409 |
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 21056?
A typical home in ZIP code 21056 is worth about $3,109,800 (Zillow Home Value Index). The median household here earns $250,001 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $3,109,800 homeWhat can a $250,001 income afford?Rental property numbers
About ZIP code 21056
What city is ZIP code 21056?
ZIP code 21056 is in Gibson Island, MD, in Anne Arundel County.
What county is ZIP code 21056 in?
21056 is mainly in Anne Arundel County, Maryland.
What is the population of ZIP code 21056?
About 291 people live in ZIP code 21056, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21056 in?
21056 is in Eastern Time (UTC−5). It observes daylight saving time.