ZIP Code 21648 — Madison CDP, MD Demographics & Data

ZIP code 21648 covers Madison, MD in Dorchester County with a population of about 104.

At a glance, the area shows median age of 61.7 versus a U.S. median of about 38.9.

It sits in telephone area codes 410, 443, 667; U.S. House district MD-1; the SALISBURY media market.

Madison, MD fits a retirement-oriented profile (older median age or known retirement-community context). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

On socioeconomic markers, US5 shows a poverty rate of 6.1%; unemployment rate near 0.0%; 15.2% of adults with a bachelor’s degree or higher (about 18.5 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Food services, and Real estate; a mean commute of about 65.0 minutes (U.S. average near 26.8).

Median home value is about $171,200 — about 51% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 97.5% (about 32.1 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21648 in Madison, MD, a household would need roughly $47,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,100. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Madison CDP, MD as Relatively Low (composite score 53.8), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (85.4) and wildfire (83.2). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Madison CDP, MD show little to no average snow and around 45.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 6 for ZIP 21648 (Madison CDP, MD) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.