Boundary Atlas

ZIP code 21224: Baltimore, MD

ZIP code 21224 is in Baltimore (82% of residents) and Dundalk (18%), in Baltimore city (82%) and Baltimore County (18%), Maryland. It is in Maryland's 7th congressional district. Its state senate districts are State Senate District 46 (77%), State Senate District 6 (18%) and State Senate District 45 (5.3%); its state house districts are State Legislative District 46 (77%), State Legislative District 6 (18%) and State Legislative District 45 (5.3%).

54,266residents (2020 Census)
9.3 sq miland area
2cities and towns
1congressional district
24voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Baltimore82%
Dundalk18%

CountyShare of ZIP residents
Baltimore city82%
Baltimore County18%

Town or county subdivisionShare of ZIP residents
Baltimore city82%
District 1211%
District 156.4%

Congressional district

Congressional districtShare of ZIP residents
Maryland's 7th congressional district (MD-07)100%

Elected officials

OfficeMemberContactShare of residents
MayorBrandon M. Scott410-545-077882%
U.S. Representative (MD-07)Kweisi Mfume (D)202-225-4741100%
U.S. SenatorAngela D. Alsobrooks (D)202-224-4524 · contact formstatewide
U.S. SenatorChris Van Hollen (D)202-224-4654 · contact formstatewide
State Senator (State Senate District 46)Bill Ferguson (Democratic)77%
State Senator (State Senate District 6)Johnny Salling (R)18%
State Senator (State Senate District 45)Cory McCray (Democratic)5.3%
Delegate (State Legislative District 46)Luke Clippinger (Democratic)410-841-330377%
Delegate (State Legislative District 46)Mark Edelson (Democratic)77%
Delegate (State Legislative District 46)Robbyn Lewis (Democratic)77%
Delegate (State Legislative District 6)Bob Long (R)18%
Delegate (State Legislative District 6)Ric Metzgar (R)18%
Delegate (State Legislative District 6)Robin Grammer (R)18%
Delegate (State Legislative District 45)Caylin Young (Democratic)5.3%
Delegate (State Legislative District 45)Jackie Addison (Democratic)5.3%
Delegate (State Legislative District 45)Stephanie Smith (Democratic)5.3%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 4677%
State Senate District 618%
State Senate District 455.3%

State house districtShare of ZIP residents
State Legislative District 4677%
State Legislative District 618%
State Legislative District 455.3%

Voting precincts

24 voting precincts overlap ZIP 21224. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:21224")

ZIP 21224 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.