Boundary Atlas

Carlyle, Illinois

Carlyle is a city in Clinton County, Illinois, with 3,253 residents in 2020. It is in Illinois's 12th congressional district. It spans 2 state house districts. Its state senate district is State Senate District 55.

3,253residents (2020 Census)
3.4 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Clinton County100%

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)618-283-3000100%
State Representative (State House District 110)Blaine Wilhour (R)100%
State Representative (State House District 109)Charlie Meier (R)618-651-04050.2%

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 55100%

State house districtShare of residents
State House District 110100%
State House District 1090.2%

ZIP codes

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

Get this in your AI agent

Your agent can get Carlyle'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:1711228")

Carlyle 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.