ZIP code 21648: Madison, MD
21648 is a ZIP code in Madison, Maryland, mainly in Dorchester County, part of the Cambridge, MD micro area. About 172 people live here.
- Population
- 172
- Median household income
- —
- Typical home value
- $287,300-0.3% in 12 months
- Median rent
- —gross, per month
- Median age
- 61.4
- Homeowners
- 91.4%of occupied homes
Shaded: ZIP code 21648's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21648 details
| City | Madison |
|---|---|
| State | Maryland |
| County | Dorchester County |
| Metro area | Cambridge, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 9.4 sq mi, plus 4.7 sq mi of water |
| Population density | 18 people per sq mi |
| Bachelor's degree or higher | 13% of adults 25+ |
| Average commute | 23.7 minutes |
| Center coordinates | 38.50880, -76.23979 |
ZIP codes near 21648
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21677 | Woolford, MD | 4.4 mi | 436 |
| 21669 | Taylors Island, MD | 4.4 mi | 160 |
| 21622 | Church Creek, MD | 7.8 mi | 420 |
| 21613 | Cambridge, MD | 8.7 mi | 17,926 |
| 21654 | Oxford, MD | 13.8 mi | 1,179 |
| 20657 | Lusby, MD | 13.8 mi | 20,699 |
| 21671 | Tilghman, MD | 13.9 mi | 727 |
| 21673 | Trappe, MD | 14.1 mi | 2,843 |
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 21648?
A typical home in ZIP code 21648 is worth about $287,300 (Zillow Home Value Index). See what buying here would cost per month, with Maryland average taxes and insurance filled in.
About ZIP code 21648
What city is ZIP code 21648?
ZIP code 21648 is in Madison, MD, in Dorchester County.
What county is ZIP code 21648 in?
21648 is mainly in Dorchester County, Maryland.
What is the population of ZIP code 21648?
About 172 people live in ZIP code 21648, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21648 in?
21648 is in Eastern Time (UTC−5). It observes daylight saving time.