ZIP code 21054: Odenton, MD
ZIP code 21054 is in Odenton (57% of residents), Crofton (23%) and Gambrills (2.1%), in Anne Arundel County, Maryland. 18% of its residents live outside city limits. It is in Maryland's 5th congressional district (97%) and Maryland's 3rd congressional district (3.5%). Its state senate districts are State Senate District 33 (86%), State Senate District 31 (8.6%) and State Senate District 21 (5.6%); its state house districts are State Legislative Subdistrict 33A (57%), State Legislative Subdistrict 33B (29%), State Legislative District 31 (8.6%) and State Legislative District 21 (5.6%).
See it on the mapAll of Maryland
City and county
| City or town | Share of ZIP residents |
|---|---|
| Odenton | 57% |
| Crofton | 23% |
| Gambrills | 2.1% |
| County | Share of ZIP residents |
|---|---|
| Anne Arundel County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 4 | 63% |
| District 5 | 19% |
| District 7 | 17% |
| District 6 | 0.7% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Maryland's 5th congressional district (MD-05) | 97% |
| Maryland's 3rd congressional district (MD-03) | 3.5% |
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 |
|---|---|---|---|
| U.S. Representative (MD-05) | Steny H. Hoyer (D) | 202-225-4131 | 97% |
| U.S. Representative (MD-03) | Sarah Elfreth (D) | 202-225-4016 | 3.5% |
| 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 33) | Dawn Gile (Democratic) | 86% | |
| State Senator (State Senate District 31) | Bryan Simonaire (R) | 8.6% | |
| State Senator (State Senate District 21) | Jim Rosapepe (Democratic) | 5.6% | |
| Delegate (State Legislative Subdistrict 33A) | Andrew Pruski (Democratic) | 57% | |
| Delegate (State Legislative Subdistrict 33B) | Stuart Schmidt (R) | 29% | |
| Delegate (State Legislative District 31) | Brian Chisholm (R) | 8.6% | |
| Delegate (State Legislative District 31) | LaToya Nkongolo (R) | 8.6% | |
| Delegate (State Legislative District 31) | Nic Kipke (R) | 8.6% | |
| Delegate (State Legislative District 21) | Ben Barnes (Democratic) | 5.6% | |
| Delegate (State Legislative District 21) | Joseline Peña-Melnyk (Democratic) | 5.6% | |
| Delegate (State Legislative District 21) | Mary Lehman (Democratic) | 5.6% |
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
- Odenton laws: search for the Odenton, Maryland code of ordinances
- Crofton laws: search for the Crofton, Maryland code of ordinances
- Gambrills laws: search for the Gambrills, Maryland code of ordinances
- 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 33 | 86% |
| State Senate District 31 | 8.6% |
| State Senate District 21 | 5.6% |
| State house district | Share of ZIP residents |
|---|---|
| State Legislative Subdistrict 33A | 57% |
| State Legislative Subdistrict 33B | 29% |
| State Legislative District 31 | 8.6% |
| State Legislative District 21 | 5.6% |
Voting precincts
15 voting precincts overlap ZIP 21054. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:21054")
ZIP 21054 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.