Boundary Atlas

ZIP code 62254: Lebanon, IL

ZIP code 62254 is in Lebanon (72% of residents) and O'Fallon (4.8%), in St. Clair County (100%) and Madison County (<0.1%), Illinois. 23% of its residents live outside city limits. It is in Illinois's 12th congressional district (100%) and Illinois's 15th congressional district (<0.1%). Its state senate districts are State Senate District 57 (74%) and State Senate District 55 (26%); its state house districts are State House District 114 (74%) and State House District 109 (26%).

6,503residents (2020 Census)
40.9 sq miland area
2cities and towns
2congressional districts
14voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Lebanon72%
O'Fallon4.8%

CountyShare of ZIP residents
St. Clair County100%
Madison County<0.1%

Town or county subdivisionShare of ZIP residents
Lebanon township65%
O'Fallon township34%
Mascoutah township0.7%
Jarvis township<0.1%
Shiloh Valley township<0.1%

Congressional districts

Congressional districtShare of ZIP residents
Illinois's 12th congressional district (IL-12)100%
Illinois's 15th congressional district (IL-15)<0.1%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-12)Mike Bost (R)202-225-5661100%
U.S. Representative (IL-15)Mary E. Miller (R)202-225-5271<0.1%
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 57)Christopher Belt (Democratic)618-875-121274%
State Senator (State Senate District 55)Jason Plummer (R)618-283-300026%
State Representative (State House District 114)Kevin Schmidt (R)618-215-105074%
State Representative (State House District 109)Charlie Meier (R)618-651-040526%

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 ZIP residents
State Senate District 5774%
State Senate District 5526%

State house districtShare of ZIP residents
State House District 11474%
State House District 10926%

Voting precincts

14 voting precincts overlap ZIP 62254. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:62254")

ZIP 62254 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.