ZIP Code 21158 — Westminster city, MD Demographics & Data

ZIP code 21158 covers Westminster, MD in Carroll County with a population of about 22,404.

At a glance, the area shows median age of 42.6 versus a U.S. median of about 38.9.

It sits in telephone area codes 410, 443, 667; U.S. House district MD-2; the BALTIMORE media market.

Median household income in ZIP 21158 is about $108,795 — about 45% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 5.3%; unemployment rate near 2.4%; 36.3% of adults with a bachelor’s degree or higher (about 2.6 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Education, Construction, and Healthcare; about 14.6% of workers reporting work-from-home (roughly in line with 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 $375,100 — about 8% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,487 (about 28% above the U.S. median rent ($1,163)), and owner-occupancy near 79.7% (about 14.3 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21158 in Westminster, MD, a household would need roughly $103,000 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 $2,410. That is roughly in line with the local median household income ($108,795). 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 Westminster city, MD as Relatively Low (composite score 59.5), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (77.0) and flood (66.7). 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 Westminster city, MD show little to no average snow and around 44.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,316 for ZIP 21158 (Westminster city, 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.