Dundas, Illinois
Dundas is a Census-designated place (an unincorporated community) in Richland County, Illinois, with 146 residents in 2020. It is in Illinois's 12th congressional district. Its state senate district is State Senate District 55; its state house district is State House District 110.
County
| County | Share of residents |
|---|---|
| Richland County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 12th congressional district (IL-12) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-12) | Mike Bost (R) | 202-225-5661 | 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 55) | Jason Plummer (R) | 618-283-3000 | 100% |
| State Representative (State House District 110) | Blaine Wilhour (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
- Dundas laws: search for the Dundas, Illinois code of ordinances
- Richland County laws: search for the Richland County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 55 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 110 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Dundas: the share of that ZIP's residents living in it.
- 62425 (25%)
Get this in your AI agent
Your agent can get Dundas'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:1721020")
Dundas 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.