Boundary Atlas

Macomb, Illinois

Macomb is a city in McDonough County, Illinois, with 15,419 residents in 2020. It spans 2 congressional districts: IL-17 (87%) and IL-15 (13%). It spans 2 state senate and 2 state house districts.

15,419residents (2020 Census)
10.8 sq miland area
1ZIP codes
2congressional districts

County

CountyShare of residents
McDonough County100%

Congressional districts

Congressional districtShare of residents
Illinois's 17th congressional district (IL-17)87%
Illinois's 15th congressional district (IL-15)13%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-17)Eric Sorensen (D)202-225-590587%
U.S. Representative (IL-15)Mary E. Miller (R)202-225-527113%
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 36)Mike Halpin (Democratic)309-558-361287%
State Senator (State Senate District 47)Neil Anderson (R)309-230-758413%
State Representative (State House District 71)Dan Swanson (R)87%
State Representative (State House District 94)Norine Hammond (R)309-836-270713%

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 3687%
State Senate District 4713%

State house districtShare of residents
State House District 7187%
State House District 9413%

ZIP codes

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

Get this in your AI agent

Your agent can get Macomb'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:1745889")

Macomb 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.