ZIP Code 21230 — Baltimore city, MD Demographics & Data

ZIP code 21230 covers Baltimore, MD in Baltimore city with a population of about 33,509.

At a glance, the area shows median age of 33.0 versus a U.S. median of about 38.9.

It sits in telephone area codes 410, 443, 667; U.S. House district MD-7; the BALTIMORE media market.

Baltimore, MD sits in a university / college context (near university of maryland, baltimore (1.3 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 21230 is about $94,164 — about 25% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 15.8%; unemployment rate near 3.4%; 58.9% of adults with a bachelor’s degree or higher (about 25.1 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Professional services, Healthcare, and Education; about 19.9% of workers reporting work-from-home (about 4.7 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 $327,700 — about 6% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,527 (about 31% above the U.S. median rent ($1,163)), and owner-occupancy near 49.6% (about 15.8 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21230 in Baltimore, MD, a household would need roughly $90,000 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 $2,105. That is roughly in line with the local median household income ($94,164). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate normals for Baltimore city, MD show little to no average snow and around 43.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,969 for ZIP 21230 (Baltimore 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.