ZIP code 21051: District 11, MD
ZIP code 21051 is in Baltimore County, Maryland, outside any city or Census-designated place. It is in Maryland's 1st congressional district. Its state senate district is State Senate District 7; its state house district is State Legislative Subdistrict 7A.
See it on the mapAll of Maryland
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Baltimore County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 11 | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Maryland's 1st congressional district (MD-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MD-01) | Andy Harris (R) | 202-225-5311 | 100% |
| 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 7) | J.B. Jennings (R) | 410-870-5848 | 100% |
| Delegate (State Legislative Subdistrict 7A) | Kathy Szeliga (R) | 100% | |
| Delegate (State Legislative Subdistrict 7A) | Ryan Nawrocki (R) | 100% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- 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 7 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State Legislative Subdistrict 7A | 100% |
Voting precincts
1 voting precinct overlap ZIP 21051. 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:21051")
ZIP 21051 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.