US ZIP Code
21648

Madison, MD

Dorchester County  ·  Maryland

● Active
👥 104 Population ↓ 41% since 2019
🎂 61.7 Median Age ↑ 38% since 2019
🏠 $171,200 Median Home Value
▼ 39% below avg ↑ 39% since 2019
🎓 24.1% College Grads
▼ 38% below avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code21648
CityMadison
StateMaryland (MD)
CountyDorchester County
Area Code667
Elevation3 ft
Latitude38.5088
Longitude-76.239792
TimezoneNew York (DST)
FIPS24019
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 58.7% (61) Female 41.4% (43) ♀

Race & Ethnicity

White: 84.6%Hispanic: 2.9%Black: 1%Asian: 11.5%Race
White84.6%
Hispanic2.9%
Black1.0%
Asian11.5%

Age Breakdown

Under 5
2%
5–17
6%
18–24
16%
25–44
1%
45–64
47%
65+
13%

Key Indicators

Median Age61.7 yrs ↑ 38% since 2019
Avg Household Size2.48
Below Poverty5.8% ▼ 42% below avg
College Grads24.1% ▼ 38% below avg
Unemployment0.0% ▼ 100% below avg
HS Graduate17 (21.5%)
Some College31 (39.2%)
Associates12 (15.2%)
Bachelors7 (8.9%)
Graduate Degree12 (15.2%)

Education

HS Grad: 21.5%Some College: 39.2%Associates: 15.2%Bachelors: 8.9%Graduate: 15.2%Edu
HS Grad21.5%
Some College39.2%
Associates15.2%
Bachelors8.9%
Graduate15.2%
Housing & Income

Housing Tenure

Owner: 97.5%Renter: 2.5%Tenure
Owner97.5%
Renter2.5%

Home Value Distribution

$150k–200k
59%
$200k–300k
21%
Over $500k
21%

Financials

Median Home Value$171,200 ▼ 39% below avg ↑ 39% since 2019
Total Units58
Vacant Units18
Avg HH Size2.48

Income Distribution

Under $25k
3%
$25k–50k
38%
$50k–75k
20%
$150k–200k
20%
Over $200k
20%
Employment & Commute

How People Get to Work

Drove Alone
100%

Commute Time

Under 15 min
40%
15–30 min
26%
30–45 min
22%
Over 45 min
12%
Housing Stock

Year Built

Before 1940
19%
1960s–1970s
10%
1980s–1990s
10%
2000+
60%

Summary

Total Units58
Vacant18
Owner Occupied97.5%
Renter Occupied2.5%
Avg HH Size2.48
Frequently Asked Questions
ZIP code 21648 is in Madison, MD, in Dorchester County.
ZIP code 21648 is located in Maryland (MD).
ZIP code 21648 is in Dorchester County, MD.
ZIP 21648 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 21648 is 104 people (ACS 2023).
Income data not available.
The median home value in ZIP 21648 is $171,200 (ACS 2023).
About ZIP Code 21648

ZIP code 21648 is located in Madison, Maryland, within Dorchester County. With a population of 104, this is a sparsely populated ZIP code with an older community — the median age is 61.7 years.

Real estate in ZIP code 21648 represents an affordable housing market. The median home value of $171,200 is below the national average. Homeownership is strong here — 97.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 39% since 2019.

The population of 21648 is primarily White (84.62%). Residents are less-educated — 24.1% hold a bachelor's degree or higher, which is below the national average. Poverty affects a relatively small share of residents at 5.8%.

Overall, ZIP code 21648 in Madison, MD is characterized as less-educated, an older community, and predominantly owner-occupied.