Boulder Hill, Illinois
Boulder Hill is a Census-designated place (an unincorporated community) in Kendall County, Illinois, with 8,394 residents in 2020. It is in Illinois's 14th congressional district. It spans 2 state house districts. Its state senate district is State Senate District 42.
County
| County | Share of residents |
|---|---|
| Kendall County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Illinois's 14th congressional district (IL-14) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (IL-14) | Lauren Underwood (D) | 202-225-2976 | 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 42) | Linda Holmes (Democratic) | 630-820-8650 | 100% |
| State Representative (State House District 84) | Stephanie Kifowit (Democratic) | 630-585-1308 | 52% |
| State Representative (State House District 83) | Matt Hanson (Democratic) | 630-425-3965 | 48% |
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
- Boulder Hill laws: search for the Boulder Hill, Illinois code of ordinances
- Kendall County website: https://kendallcountyil.gov
- Kendall County laws: search for the Kendall County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 42 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 84 | 52% |
| State House District 83 | 48% |
ZIP codes
Percentages mark ZIPs only partly in Boulder Hill: the share of that ZIP's residents living in it.
- 60538 (29%)
Get this in your AI agent
Your agent can get Boulder Hill'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:1707419")
Boulder Hill 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.