Boundary Atlas

ZIP code 21787: Taneytown, MD

ZIP code 21787 is in Taneytown (66% of residents), in Carroll County (98%) and Frederick County (2.3%), Maryland. 34% of its residents live outside city limits. It is in Maryland's 2nd congressional district (98%) and Maryland's 6th congressional district (2.3%). Its state senate districts are State Senate District 5 (98%) and State Senate District 2 (2.3%); its state house districts are State Legislative District 5 (98%) and State Legislative Subdistrict 2A (2.3%).

11,066residents (2020 Census)
61.1 sq miland area
1cities and towns
2congressional districts
6voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Taneytown66%

CountyShare of ZIP residents
Carroll County98%
Frederick County2.3%

Town or county subdivisionShare of ZIP residents
District 1, Taneytown87%
District 3, Myers5.5%
District 2, Uniontown3.7%
District 5, Emmitsburg2.3%
District 10, Middleburg1.5%

Congressional districts

Congressional districtShare of ZIP residents
Maryland's 2nd congressional district (MD-02)98%
Maryland's 6th congressional district (MD-06)2.3%

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

OfficeMemberContactShare of residents
U.S. Representative (MD-02)Johnny Olszewski, Jr. (D)202-225-306198%
U.S. Representative (MD-06)April McClain Delaney (D)202-225-27212.3%
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 5)Justin Ready (R)98%
State Senator (State Senate District 2)Paul Corderman (R)2.3%
Delegate (State Legislative District 5)April Rose (R)98%
Delegate (State Legislative District 5)Chris Tomlinson (R)98%
Delegate (State Legislative District 5)Christopher Bouchat (R)98%
Delegate (State Legislative Subdistrict 2A)William Valentine (R)2.3%
Delegate (State Legislative Subdistrict 2A)William Wivell (R)2.3%

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 598%
State Senate District 22.3%

State house districtShare of ZIP residents
State Legislative District 598%
State Legislative Subdistrict 2A2.3%

Voting precincts

6 voting precincts overlap ZIP 21787. 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:21787")

ZIP 21787 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.