ZIP Code 20621 — undefined, MD Demographics & Data

ZIP code 20621 covers MD in St. Mary's County with a population of about 902.

At a glance, the area shows median age of 60.2 versus a U.S. median of about 38.9.

It sits in telephone area codes 227, 240, 301; U.S. House district MD-5; the WASHINGTON, DC (HAGRSTWN) media market.

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 12.2%; unemployment rate near 4.3%; 8.5% of adults with a bachelor’s degree or higher (about 25.2 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Professional services, and Education; about 8.1% of workers reporting work-from-home (about 7.1 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $562,500 — about 62% above 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 20621 in MD, a household would need roughly $155,000 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 $3,613. 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 MD as Very Low (composite score 42.6), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (85.1) and wildfire (59.0). 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 MD show little to no average snow and around 48.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 53 for ZIP 20621 (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.