Madison, MD 21648 ZIP Code Profile

Related Place Profiles:
Madison, MD

Camera Icon Photos of the local Madison, MD area   |   Madison, MD 21648 Real Estate

ZIP Code 21648: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Madison, MD 21648

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 2
  • Single Family Addresses: 101
  • Multi-Family Addresses: 0
  • County: Dorchester County
  • Centroid: Latitude 38.502, Longitude -76.229
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


21648 ZIP Code Map

Search the map for:

Madison, MD 21648 Data & Demographics (As of July 1, 2016)


Total Population 129
Population in Households 126
Population in Familes 102
Population in Group Qrtrs 3
Population Density1 47
Diversity Index2 24


Total Households 54
Average Household Size 2.33
Family Households 37
Average Family Size 3


Total Housing Units 72 (100%)
Owner Occupied HU 46 (63.9%)
Renter Occupied HU 8 (11.1%)
Vacant Housing Units 18 (25.0%)
Median Home Value $261,111
Average Home Value $315,217


Median Household Income $61,111
Average Household Income $79,200
Per Capita Income $33,954
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.12% 0.0%
Households 0.0% 0.0%
Families -0.43% 0.0%
Median Household Income   2.27%
Per Capita Income   1.78%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Madison, MD 21648 - Peer Comparisons by Rank and Percentile

The table below compares 21648 to the other 455 ZIP Codes in Maryland by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 429 6th
Population Density1 # 413 9th
Diversity Index2 # 338 26th
Median Household Income # 301 34th
Per Capita Income # 242 47th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.