ZIP Code 21105 — undefined, MD Demographics & Data

ZIP code 21105 covers MD in Baltimore County with a population of about 31.

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

MD fits a retirement-oriented profile (high share of residents 65+ (100.0%)). 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 0.0%; 38.7% of adults with a bachelor’s degree or higher (about 5.0 points above the national share (33.7%)).

Housing tenure and rents show owner-occupancy near 0.0% (about 65.4 points below the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for MD as Relatively High (composite score 95.0), which is among the highest nationally. The strongest component scores on US5 are flood (94.3) and hurricane (92.3). 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 47.9 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2 for ZIP 21105 (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.