Boundary Atlas

New Baden, Illinois

New Baden is a village in Clinton County (94% of residents) and St. Clair County (6.5%), Illinois, with 3,428 residents in 2020. It is in Illinois's 12th congressional district. It spans 2 state senate and 2 state house districts.

3,428residents (2020 Census)
1.8 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Clinton County94%
St. Clair County6.5%

Congressional district

Congressional districtShare of residents
Illinois's 12th congressional district (IL-12)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-12)Mike Bost (R)202-225-5661100%
U.S. SenatorRichard J. Durbin (D)202-224-2152 · contact formstatewide
U.S. SenatorTammy Duckworth (D)202-224-2854 · contact formstatewide
State Senator (State Senate District 55)Jason Plummer (R)618-283-300094%
State Senator (State Senate District 57)Christopher Belt (Democratic)618-875-12126.5%
State Representative (State House District 109)Charlie Meier (R)618-651-040594%
State Representative (State House District 114)Kevin Schmidt (R)618-215-10506.5%

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 5594%
State Senate District 576.5%

State house districtShare of residents
State House District 10994%
State House District 1146.5%

ZIP codes

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

Get this in your AI agent

Your agent can get New Baden'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:1752142")

New Baden 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.