Boundary Atlas

ZIP code 21904: District 7, Port Deposit, MD

ZIP code 21904 is in Port Deposit (9.2% of residents), in Cecil County, Maryland. 91% of its residents live outside city limits. It is in Maryland's 1st congressional district. Its state senate district is State Senate District 35; its state house district is State Legislative Subdistrict 35B.

6,689residents (2020 Census)
23.6 sq miland area
2cities and towns
1congressional district
7voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Port Deposit9.2%
Perryville0.1%

CountyShare of ZIP residents
Cecil County100%

Town or county subdivisionShare of ZIP residents
District 7, Port Deposit70%
District 6, Rising Sun22%
District 5, North East7.4%

Congressional district

Congressional districtShare of ZIP residents
Maryland's 1st congressional district (MD-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MD-01)Andy Harris (R)202-225-5311100%
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 35)Jason Gallion (R)100%
Delegate (State Legislative Subdistrict 35B)Kevin Hornberger (R)100%
Delegate (State Legislative Subdistrict 35A)Mike Griffith (R)<0.1%
Delegate (State Legislative Subdistrict 35A)Teresa Reilly (R)<0.1%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 35100%

State house districtShare of ZIP residents
State Legislative Subdistrict 35B100%
State Legislative Subdistrict 35Aland only

Voting precincts

7 voting precincts overlap ZIP 21904. Map them, with each precinct's share of the ZIP's residents.

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ZIP 21904 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.