ZIP code 21239: Baltimore, MD
ZIP code 21239 is in Baltimore (81% of residents) and Towson (19%), in Baltimore city (81%) and Baltimore County (19%), Maryland. It is in Maryland's 7th congressional district (81%) and Maryland's 2nd congressional district (19%). Its state senate districts are State Senate District 43 (94%) and State Senate District 45 (6.5%); its state house districts are State Legislative Subdistrict 43A (75%), State Legislative Subdistrict 43B (19%) and State Legislative District 45 (6.5%).
See it on the mapAll of Maryland
City and county
| City or town | Share of ZIP residents |
|---|---|
| Baltimore | 81% |
| Towson | 19% |
| Parkville | 0.2% |
| County | Share of ZIP residents |
|---|---|
| Baltimore city | 81% |
| Baltimore County | 19% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Baltimore city | 81% |
| District 9 | 19% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Maryland's 7th congressional district (MD-07) | 81% |
| Maryland's 2nd congressional district (MD-02) | 19% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Brandon M. Scott | 410-545-0778 | 81% |
| U.S. Representative (MD-07) | Kweisi Mfume (D) | 202-225-4741 | 81% |
| U.S. Representative (MD-02) | Johnny Olszewski, Jr. (D) | 202-225-3061 | 19% |
| U.S. Senator | Angela D. Alsobrooks (D) | 202-224-4524 · contact form | statewide |
| U.S. Senator | Chris Van Hollen (D) | 202-224-4654 · contact form | statewide |
| State Senator (State Senate District 43) | Mary Washington (Democratic) | 94% | |
| State Senator (State Senate District 45) | Cory McCray (Democratic) | 6.5% | |
| Delegate (State Legislative Subdistrict 43A) | Elizabeth Embry (Democratic) | 75% | |
| Delegate (State Legislative Subdistrict 43A) | Regina Boyce (Democratic) | 75% | |
| Delegate (State Legislative Subdistrict 43B) | Cathi Forbes (Democratic) | 19% | |
| Delegate (State Legislative District 45) | Caylin Young (Democratic) | 6.5% | |
| Delegate (State Legislative District 45) | Jackie Addison (Democratic) | 6.5% | |
| Delegate (State Legislative District 45) | Stephanie Smith (Democratic) | 6.5% |
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
- Baltimore website: https://www.baltimorecity.gov/
- Baltimore council: Baltimore City Council
- Baltimore laws: search for the Baltimore, Maryland code of ordinances
- Towson laws: search for the Towson, Maryland code of ordinances
- Baltimore city website: https://www.baltimorecity.gov/
- Baltimore city laws: search for the Baltimore city, Maryland code of ordinances
- Baltimore County website: https://www.baltimorecountymd.gov/
- Baltimore County laws: search for the Baltimore County, Maryland code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 43 | 94% |
| State Senate District 45 | 6.5% |
| State house district | Share of ZIP residents |
|---|---|
| State Legislative Subdistrict 43A | 75% |
| State Legislative Subdistrict 43B | 19% |
| State Legislative District 45 | 6.5% |
Voting precincts
20 voting precincts overlap ZIP 21239. 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:21239")
ZIP 21239 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.