Preemption, Illinois
Preemption is a Census-designated place (an unincorporated community) in Mercer County, Illinois, with 254 residents in 2020. It is in Illinois's 17th congressional district. Its state senate district is State Senate District 47; its state house district is State House District 94.
County
| County | Share of residents |
|---|---|
| Mercer 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 47) | Neil Anderson (R) | 309-230-7584 | 100% |
| State Representative (State House District 94) | Norine Hammond (R) | 309-836-2707 | 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
- Preemption laws: search for the Preemption, Illinois code of ordinances
- Mercer County website: http://www.mercercountyil.org
- Mercer County laws: search for the Mercer County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 47 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 94 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Preemption: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Preemption'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:1761782")
Preemption here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.