Boundary Atlas

Dormont, Pennsylvania

Dormont is a borough in Allegheny County, Pennsylvania, with 8,244 residents in 2020. It is in Pennsylvania's 17th congressional district. Its state senate district is State Senate District 42; its state house district is State House District 42.

8,244residents (2020 Census)
0.8 sq miland area
3ZIP codes
1congressional district

County

CountyShare of residents
Allegheny County100%

Congressional district

Congressional districtShare of residents
Pennsylvania's 17th congressional district (PA-17)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-17)Christopher R. Deluzio (D)202-225-2301100%
U.S. SenatorDavid McCormick (R)202-224-6324 · contact formstatewide
U.S. SenatorJohn Fetterman (D)202-224-4254 · contact formstatewide
State Senator (State Senate District 42)Wayne Fontana (Democratic)412-331-1208100%
State Representative (State House District 42)Jen Mazzocco (Democratic)412-343-3870100%

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 residents
State Senate District 42100%

State house districtShare of residents
State House District 42100%

ZIP codes

Percentages mark ZIPs only partly in Dormont: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Dormont's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:4219576")

Dormont here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.