ZIP code 60178: Sycamore, IL
ZIP code 60178 is in Sycamore (83% of residents), in DeKalb County (99%) and Kane County (0.8%), Illinois. 17% of its residents live outside city limits. It is in Illinois's 14th congressional district (95%), Illinois's 16th congressional district (2.7%) and Illinois's 11th congressional district (2.6%). Its state senate districts are State Senate District 35 (89%), State Senate District 38 (7.9%) and State Senate District 45 (2.8%); its state house districts are State House District 70 (89%), State House District 76 (7.9%) and State House District 89 (2.8%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Sycamore | 83% |
| DeKalb | 0.4% |
| Burlington | 0.1% |
| County | Share of ZIP residents |
|---|---|
| DeKalb County | 99% |
| Kane County | 0.8% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Sycamore township | 63% |
| Cortland township | 25% |
| DeKalb township | 7.9% |
| Mayfield township | 2.8% |
| Burlington township | 0.5% |
| Hampshire township | 0.3% |
| Genoa township | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 14th congressional district (IL-14) | 95% |
| Illinois's 16th congressional district (IL-16) | 2.7% |
| Illinois's 11th congressional district (IL-11) | 2.6% |
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 |
|---|---|---|---|
| U.S. Representative (IL-14) | Lauren Underwood (D) | 202-225-2976 | 95% |
| U.S. Representative (IL-16) | Darin LaHood (R) | 202-225-6201 | 2.7% |
| U.S. Representative (IL-11) | Bill Foster (D) | 202-225-3515 | 2.6% |
| 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 | 89% |
| State Senator (State Senate District 38) | Sue Rezin (R) | 815-220-8720 | 7.9% |
| State Senator (State Senate District 45) | Andrew Chesney (R) | 815-232-0774 | 2.8% |
| State Representative (State House District 70) | Jeff Keicher (R) | 815-748-3494 | 89% |
| State Representative (State House District 76) | Murri Briel (Democratic) | 815-587-7912 | 7.9% |
| State Representative (State House District 89) | Tony McCombie (R) | 815-291-8989 | 2.8% |
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
- Kane County website: http://www.countyofkane.org/
- Kane County laws: search for the Kane County, Illinois code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 35 | 89% |
| State Senate District 38 | 7.9% |
| State Senate District 45 | 2.8% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 70 | 89% |
| State House District 76 | 7.9% |
| State House District 89 | 2.8% |
Voting precincts
24 voting precincts overlap ZIP 60178. 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:60178")
ZIP 60178 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.