Boundary Atlas

ZIP code 21015: Bel Air South, MD

ZIP code 21015 is in Bel Air South (73% of residents) and Bel Air North (14%), in Harford County, Maryland. 12% of its residents live outside city limits. It is in Maryland's 1st congressional district. Its state senate districts are State Senate District 35 (61%), State Senate District 34 (24%) and State Senate District 7 (15%); its state house districts are State Legislative Subdistrict 35A (61%), State Legislative Subdistrict 34B (24%) and State Legislative Subdistrict 7B (15%).

30,400residents (2020 Census)
31.2 sq miland area
2cities and towns
1congressional district
13voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Bel Air South73%
Bel Air North14%

CountyShare of ZIP residents
Harford County100%

Town or county subdivisionShare of ZIP residents
District 3, Bel Air64%
District 1, Abingdon36%

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)61%
State Senator (State Senate District 34)Mary-Dulany James (Democratic)24%
State Senator (State Senate District 7)J.B. Jennings (R)410-870-584815%
Delegate (State Legislative Subdistrict 35A)Mike Griffith (R)61%
Delegate (State Legislative Subdistrict 35A)Teresa Reilly (R)61%
Delegate (State Legislative Subdistrict 34B)Susan McComas (R)24%
Delegate (State Legislative Subdistrict 7B)Lauren Arikan (R)15%

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 3561%
State Senate District 3424%
State Senate District 715%

State house districtShare of ZIP residents
State Legislative Subdistrict 35A61%
State Legislative Subdistrict 34B24%
State Legislative Subdistrict 7B15%

Voting precincts

13 voting precincts overlap ZIP 21015. Map them, with each precinct's share of the ZIP's residents.

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ZIP 21015 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.