Henderson, Illinois
Henderson is a village in Knox County, Illinois, with 266 residents in 2020. It is in Illinois's 17th congressional district. Its state senate district is State Senate District 36; its state house district is State House District 71.
County
| County | Share of residents |
|---|---|
| Knox County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 17th congressional district (IL-17) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-17) | Eric Sorensen (D) | 202-225-5905 | 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 36) | Mike Halpin (Democratic) | 309-558-3612 | 100% |
| State Representative (State House District 71) | Dan Swanson (R) | 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
- Henderson laws: search for the Henderson, Illinois code of ordinances
- Knox County laws: search for the Knox County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 36 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 71 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Henderson: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Henderson'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:1734007")
Henderson 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.