ZIP code 61008: Belvidere, IL
ZIP code 61008 is in Belvidere (75% of residents) and Timberlane (2.3%), in Boone County (99%) and Winnebago County (0.6%), Illinois. 23% of its residents live outside city limits. It is in Illinois's 11th congressional district (75%) and Illinois's 16th congressional district (25%). Its state senate districts are State Senate District 34 (76%), State Senate District 35 (21%) and State Senate District 45 (3.7%); its state house districts are State House District 68 (76%), State House District 69 (21%) and State House District 89 (3.7%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Belvidere | 75% |
| Timberlane | 2.3% |
| County | Share of ZIP residents |
|---|---|
| Boone County | 99% |
| Winnebago County | 0.6% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Belvidere township | 77% |
| Bonus township | 10% |
| Flora township | 8.1% |
| Caledonia township | 2.3% |
| Spring township | 1.8% |
| Rockford township | 0.6% |
| Poplar Grove township | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 11th congressional district (IL-11) | 75% |
| Illinois's 16th congressional district (IL-16) | 25% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Clinton Morris | 75% | |
| U.S. Representative (IL-11) | Bill Foster (D) | 202-225-3515 | 75% |
| U.S. Representative (IL-16) | Darin LaHood (R) | 202-225-6201 | 25% |
| 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 | 76% |
| State Senator (State Senate District 35) | Dave Syverson (R) | 815-987-7555 | 21% |
| State Senator (State Senate District 45) | Andrew Chesney (R) | 815-232-0774 | 3.7% |
| State Representative (State House District 68) | Dave Vella (Democratic) | 815-329-6741 | 76% |
| State Representative (State House District 69) | Joe Sosnowski (R) | 815-547-3436 | 21% |
| State Representative (State House District 89) | Tony McCombie (R) | 815-291-8989 | 3.7% |
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
- Timberlane website: http://villageoftimberlane.org/
- Timberlane laws: search for the Timberlane, Illinois code of ordinances
- Boone County website: http://www.boonecountyil.org
- Boone County laws: search for the Boone County, Illinois code of ordinances
- Winnebago County laws: search for the Winnebago County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 34 | 76% |
| State Senate District 35 | 21% |
| State Senate District 45 | 3.7% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 68 | 76% |
| State House District 69 | 21% |
| State House District 89 | 3.7% |
Voting precincts
27 voting precincts overlap ZIP 61008. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:61008")
ZIP 61008 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.