Madison, MD · standard
ZIP Code 21648
Dorchester County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 255
- 6/sq mi
- $195,000
- Median home value
- 13.0%
- Bachelor's or higher
The verdict
Madison pairs below-median home values, in a rural, homeowner-dominated area.
- 42th pct
- home value, US ZIPs
- 6
- people per sq mi
- 91%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21648 against every reporting US ZIP.
ZIP code 21648 is a sparsely populated ZIP (a standard USPS delivery area) in Madison, Dorchester County, Maryland, home to just 255 residents across 45.5 square miles, a density of 6 people per square mile, in the New York time zone.
Median household income is not on file for ZIP 21648, but per-capita income is $42,655. Poverty here runs at 24.4%, with unemployment measured at 0.0%. Median home value sits at $195,000 (56% below the state average), median rent at - a month, and owner-occupancy at 91.4%.
Formal educational attainment runs low here: just 13.0% of adults hold a bachelor's degree or higher, the median age is 61.4, and the average commute is -. A geography-based comparison follows: 4 ZIP codes within about 10 miles of 21648, plus 6 more within Dorchester County, give a clearer read than the national average alone.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21648, Madison, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
255
Population
45.5
Area (sq mi)
6
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21648?
61.4
Median Age
54.7%
Male
45.3%
Female
6.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$42,655
Per Capita Income
24.4%
Poverty Rate
0.0%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
89
Total Housing Units
70
Occupied Units
19
Vacant Units
2.29
Avg Household Size
Occupancy Type
$195,000
Median Home Value
-56% vs state
1974
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 21648 vs 21677 →
ZIP 21648 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 21622
Church Creek (21622)
558 residents
- 21677
Woolford (21677)
440 residents
- 21648
Madison (21648)
255 residents
- 21669
Taylors Island (21669)
229 residents
- 21626 120
Crapo (21626)
120 residents
What this shows Among its immediate neighbors, ZIP 21648 ranks #3 by population - useful context the national average alone can't give.
More ZIP Codes in Dorchester County
Related Areas
Frequently Asked Questions
What county is ZIP code 21648 in? ▼
What is the population of ZIP code 21648? ▼
What is the average home value in ZIP 21648? ▼
What is the demographic makeup of ZIP 21648? ▼
What is the education level in ZIP code 21648? ▼
What percentage of residents own vs. rent in ZIP 21648? ▼
What is the poverty rate in ZIP code 21648? ▼
Read our methodology to see how this data is sourced, computed, and verified.