What to know about ZIP 21233
ZIP code 21233 covers Baltimore, MD in Baltimore city.
It sits in telephone area codes 410, 443, 667; U.S. House district MD-7; the BALTIMORE media market.
Baltimore city, MD
ZIP Code 21233 — Baltimore city, MD Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
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