ZIP code 21240: District 1, MD
ZIP code 21240 is in Anne Arundel County, Maryland, outside any city or Census-designated place. It is in Maryland's 3rd congressional district. Its state senate district is State Senate District 32; its state house district is State Legislative District 32.
See it on the mapAll of Maryland
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Anne Arundel County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 1 | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Maryland's 3rd congressional district (MD-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MD-03) | Sarah Elfreth (D) | 202-225-4016 | 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 32) | Pam Beidle (Democratic) | 100% | |
| Delegate (State Legislative District 32) | Mark Chang (Democratic) | 100% | |
| Delegate (State Legislative District 32) | Mike Rogers (Democratic) | 100% | |
| Delegate (State Legislative District 32) | Sandy Bartlett (Democratic) | 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
- Anne Arundel County website: https://www.aacounty.org/
- Anne Arundel County laws: search for the Anne Arundel County, Maryland code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 32 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State Legislative District 32 | 100% |
Voting precincts
1 voting precinct overlap ZIP 21240. 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:21240")
ZIP 21240 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.