ZIP code 21903: Perryville, MD

ZIP code 21903 is in Perryville (77% of residents), in Cecil County, Maryland. 23% 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.

5,835residents (2020 Census)

12.7 sq miland area

1cities and towns

1congressional district

5voting precincts

See it on the map All of Maryland

City and county

City or town	Share of ZIP residents
Perryville	77%

County	Share of ZIP residents
Cecil County	100%

Town or county subdivision	Share of ZIP residents
District 7, Port Deposit	89%
District 5, North East	11%

Congressional district

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

Elected officials

Office	Member	Contact	Share of residents
U.S. Representative (MD-01)	Andy Harris (R)	202-225-5311	100%
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 35)	Jason Gallion (R)		100%
Delegate (State Legislative Subdistrict 35B)	Kevin Hornberger (R)		100%

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

Perryville website: http://www.perryvillemd.org/
Perryville laws: search for the Perryville, Maryland code of ordinances
Cecil County website: https://www.ccgov.org/
Cecil County laws: search for the Cecil County, Maryland code of ordinances

State legislative districts

State senate district	Share of ZIP residents
State Senate District 35	100%

State house district	Share of ZIP residents
State Legislative Subdistrict 35B	100%

Voting precincts

5 voting precincts overlap ZIP 21903. 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:

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ZIP 21903 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.