Illinois's 9th congressional district (IL-09)
Illinois's 9th congressional district (IL-09) covers parts or all of McHenry County, Cook County and Lake County, and 40 ZIP codes (13 wholly inside it). Its 2020 population was 753,677. This is the map in force for the November 3, 2026 election.
Who represents IL-09
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (IL-09) | Janice D. Schakowsky (D) | 202-225-2111 |
| U.S. Senator | Richard J. Durbin (D) | 202-224-2152 · contact form |
| U.S. Senator | Tammy Duckworth (D) | 202-224-2854 · contact form |
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in IL-09 |
|---|---|
| McHenry County | 28% |
| Cook County | 12% |
| Lake County | 6.2% |
ZIP codes
Percentages mark ZIPs only partly in IL-09: the share of that ZIP's residents inside it.
- 60004 (26%)
- 60010 (20%)
- 60013 (92%)
- 60014 (54%)
- 60016 (<0.1%)
- 60021 (91%)
- 60025 (86%)
- 60026
- 60029
- 60042 (32%)
- 60047 (38%)
- 60053
- 60056 (23%)
- 60060 (4.6%)
- 60062 (15%)
- 60068 (33%)
- 60070 (98%)
- 60076
- 60077
- 60084 (22%)
- 60089 (51%)
- 60090 (20%)
- 60091 (66%)
- 60093 (25%)
- 60102 (61%)
- 60156 (45%)
- 60201
- 60202
- 60203
- 60208
- 60613 (39%)
- 60625 (4.2%)
- 60626
- 60631 (24%)
- 60640 (87%)
- 60645
- 60659 (60%)
- 60660
- 60712
- 60714 (88%)
Towns
Algonquin township, Evanston city, Niles township, Northfield township, Cuba township, Wheeling township, New Trier township, Ela township, Maine township, Wauconda township, Vernon township, Fremont township and Chicago city.
Get this in your AI agent
Your agent can draw every precinct in IL-09, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:1709", children_level="precinct", include_districts=True)