Sycamore, Illinois
Sycamore is a city in DeKalb County, Illinois, with 18,577 residents in 2020. It is in Illinois's 14th congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| DeKalb 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 35) | Dave Syverson (R) | 815-987-7555 | 91% |
| State Senator (State Senate District 38) | Sue Rezin (R) | 815-220-8720 | 8.7% |
| State Representative (State House District 70) | Jeff Keicher (R) | 815-748-3494 | 91% |
| State Representative (State House District 76) | Murri Briel (Democratic) | 815-587-7912 | 8.7% |
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
- Sycamore website: http://www.cityofsycamore.com/
- Sycamore laws: search for the Sycamore, Illinois code of ordinances
- DeKalb County website: http://dekalbcounty.org/
- DeKalb County laws: search for the DeKalb County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 35 | 91% |
| State Senate District 38 | 8.7% |
| State house district | Share of residents |
|---|---|
| State House District 70 | 91% |
| State House District 76 | 8.7% |
ZIP codes
Percentages mark ZIPs only partly in Sycamore: the share of that ZIP's residents living in it.
- 60178 (83%)
Get this in your AI agent
Your agent can get Sycamore'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:1774223")
Sycamore 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.