Boundary Atlas

ZIP code 21875: Delmar, MD

ZIP code 21875 is in Delmar (52% of residents), in Wicomico County, Maryland. 48% of its residents live outside city limits. It is in Maryland's 1st congressional district. Its state senate districts are State Senate District 38 (92%) and State Senate District 37 (7.8%); its state house districts are State Legislative Subdistrict 38B (76%), State Legislative Subdistrict 38C (17%) and State Legislative Subdistrict 37A (7.8%).

7,231residents (2020 Census)
24.4 sq miland area
1cities and towns
1congressional district
9voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Delmar52%

CountyShare of ZIP residents
Wicomico County100%

Town or county subdivisionShare of ZIP residents
District 11, Delmar63%
District 5, Parsons32%
District 1, Barren Creek2.7%
District 4, Pittsburg2.3%
District 15, Hebron0.2%

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 38)Mary Beth Carozza (R)92%
State Senator (State Senate District 37)Johnny Mautz (R)410-829-25247.8%
Delegate (State Legislative Subdistrict 38B)Barry Beauchamp (R)76%
Delegate (State Legislative Subdistrict 38C)Wayne Hartman (R)17%
Delegate (State Legislative Subdistrict 37A)Sheree Sample-Hughes (Democratic)7.8%

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 3892%
State Senate District 377.8%

State house districtShare of ZIP residents
State Legislative Subdistrict 38B76%
State Legislative Subdistrict 38C17%
State Legislative Subdistrict 37A7.8%

Voting precincts

9 voting precincts overlap ZIP 21875. Map them, with each precinct's share of the ZIP's residents.

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ZIP 21875 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.