Belvidere, Illinois
Belvidere is a city in Boone County, Illinois, with 25,362 residents in 2020. It spans 2 congressional districts: IL-11 (92%) and IL-16 (8.0%). It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Boone County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Illinois's 11th congressional district (IL-11) | 92% |
| Illinois's 16th congressional district (IL-16) | 8.0% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Clinton Morris | citywide | |
| U.S. Representative (IL-11) | Bill Foster (D) | 202-225-3515 | 92% |
| U.S. Representative (IL-16) | Darin LaHood (R) | 202-225-6201 | 8.0% |
| 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 34) | Steve Stadelman (Democratic) | 815-987-7557 | 99% |
| State Senator (State Senate District 35) | Dave Syverson (R) | 815-987-7555 | 1.4% |
| State Representative (State House District 68) | Dave Vella (Democratic) | 815-329-6741 | 99% |
| State Representative (State House District 69) | Joe Sosnowski (R) | 815-547-3436 | 1.4% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Belvidere laws: search for the Belvidere, Illinois code of ordinances
- Boone County website: http://www.boonecountyil.org
- Boone County laws: search for the Boone County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 34 | 99% |
| State Senate District 35 | 1.4% |
| State house district | Share of residents |
|---|---|
| State House District 68 | 99% |
| State House District 69 | 1.4% |
ZIP codes
Percentages mark ZIPs only partly in Belvidere: the share of that ZIP's residents living in it.
- 61008 (75%)
Get this in your AI agent
Your agent can get Belvidere'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:1705092")
Belvidere 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.