Boundary Atlas

Wamac, Illinois

Wamac is a city in Clinton County (47% of residents), Marion County (42%) and Washington County (12%), Illinois, with 985 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.

985residents (2020 Census)
1.4 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Clinton County47%
Marion County42%
Washington County12%

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)88%
State Representative (State House District 109)Charlie Meier (R)618-651-040512%

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 11088%
State House District 10912%

ZIP codes

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

Get this in your AI agent

Your agent can get Wamac'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:1778721")

Wamac 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.