ZIP Code 21228 — Catonsville CDP, MD Demographics & Data

ZIP code 21228 covers Catonsville, MD in Baltimore County with a population of about 49,417.

At a glance, the area shows median age of 43.1 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.

Catonsville, MD sits in a university / college context (near university of maryland-baltimore county (2.2 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

Median household income in ZIP 21228 is about $107,714 — about 43% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 9.0%; unemployment rate near 4.5%; 49.9% of adults with a bachelor’s degree or higher (about 16.1 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Professional services, Healthcare, and Education; about 18.9% of workers reporting work-from-home (about 3.7 points above 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 $389,200 — about 12% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,454 (about 25% above the U.S. median rent ($1,163)), and owner-occupancy near 71.6% (about 6.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21228 in Catonsville, MD, a household would need roughly $107,000 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 $2,500. That is roughly in line with the local median household income ($107,714). 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 Catonsville CDP, 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 Catonsville CDP, MD show little to no average snow and around 43.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2,903 for ZIP 21228 (Catonsville 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.