Boundary Atlas

Chalfant, Pennsylvania

Chalfant is a borough in Allegheny County, Pennsylvania, with 748 residents in 2020. It is in Pennsylvania's 12th congressional district. Its state senate district is State Senate District 43; its state house district is State House District 34.

748residents (2020 Census)
0.2 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Allegheny County100%

Congressional district

Congressional districtShare of residents
Pennsylvania's 12th congressional district (PA-12)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-12)Summer L. Lee (D)202-225-2135100%
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 43)Jay Costa (Democratic)412-578-8457100%
State Representative (State House District 34)Abigail Salisbury (Democratic)412-273-3400100%

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 43100%

State house districtShare of residents
State House District 34100%

ZIP codes

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

Get this in your AI agent

Your agent can get Chalfant'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:4212496")

Chalfant 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.