Boundary Atlas

Mars, Pennsylvania

Mars is a borough in Butler County, Pennsylvania, with 1,458 residents in 2020. It is in Pennsylvania's 16th congressional district. Its state senate district is State Senate District 47; its state house district is State House District 12.

1,458residents (2020 Census)
0.5 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Butler County100%

Congressional district

Congressional districtShare of residents
Pennsylvania's 16th congressional district (PA-16)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-16)Mike Kelly (R)202-225-5406100%
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 47)Elder Vogel (R)878-978-2575100%
State Representative (State House District 12)Brandon Dukes (Democratic)724-824-8671100%

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 47100%

State house districtShare of residents
State House District 12100%

ZIP codes

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

Get this in your AI agent

Your agent can get Mars'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:4247672")

Mars 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.