ZIP Code 21781 — St. James CDP, MD Demographics & Data

ZIP code 21781 covers St. James, MD in Washington County with a population of about 34.

At a glance, the area shows median age of 18.8 versus a U.S. median of about 38.9.

It sits in telephone area codes 227, 240, 301; U.S. House district MD-6; the WASHINGTON, DC (HAGRSTWN) media market.

On socioeconomic markers, US5 shows a poverty rate of 100.0%; unemployment rate near 81.3%.

Labor and commute patterns include leading industry context around Education; a mean commute of about 3.0 minutes (U.S. average near 26.8).

FEMA’s National Risk Index rates natural-hazard risk for St. James CDP, MD as Relatively Low (composite score 68.8), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (85.7) and flood (73.1). 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 St. James CDP, MD show little to no average snow and around 43.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2 for ZIP 21781 (St. James 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.