Winfield, Illinois
Winfield is a village in DuPage County, Illinois, with 9,835 residents in 2020. It is in Illinois's 3rd congressional district. Its state senate district is State Senate District 24; its state house district is State House District 47.
County
| County | Share of residents |
|---|---|
| DuPage County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 3rd congressional district (IL-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-03) | Delia C. Ramirez (D) | 202-225-5701 | 100% |
| U.S. Senator | Richard J. Durbin (D) | 202-224-2152 · contact form | statewide |
| U.S. Senator | Tammy Duckworth (D) | 202-224-2854 · contact form | statewide |
| State Senator (State Senate District 24) | Seth Lewis (R) | 630-349-0645 | 100% |
| State Representative (State House District 47) | Amy Grant (R) | 331-218-4182 | 100% |
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
- Winfield website: https://www.villageofwinfield.com/
- Winfield laws: search for the Winfield, Illinois code of ordinances
- DuPage County website: https://www.dupagecounty.gov/
- DuPage County laws: search for the DuPage County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 24 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 47 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Winfield: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Winfield'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:1782400")
Winfield 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.