Boundary Atlas

South Holland, Illinois

South Holland is a village in Cook County, Illinois, with 21,465 residents in 2020. It is in Illinois's 2nd congressional district. It spans 2 state senate and 3 state house districts.

21,465residents (2020 Census)
7.2 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Cook County100%

Congressional district

Congressional districtShare of residents
Illinois's 2nd congressional district (IL-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-02)Robin L. Kelly (D)202-225-0773100%
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 15)Napoleon Harris (Democratic)708-893-055296%
State Senator (State Senate District 17)Elgie Sims (Democratic)773-933-77154.4%
State Representative (State House District 29)Thaddeus Jones (Democratic)708-825-117481%
State Representative (State House District 30)Will Davis (Democratic)708-799-730014%
State Representative (State House District 34)Nick Smith (Democratic)773-783-88004.4%

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 1596%
State Senate District 174.4%

State house districtShare of residents
State House District 2981%
State House District 3014%
State House District 344.4%

ZIP codes

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

Get this in your AI agent

Your agent can get South Holland'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:1770850")

South Holland 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.