Boundary Atlas

ZIP code 60511: Big Rock, IL

ZIP code 60511 is in Big Rock (63% of residents), in Kane County (98%) and DeKalb County (2.0%), Illinois. 37% of its residents live outside city limits. It is in Illinois's 14th congressional district. Its state senate districts are State Senate District 35 (100%) and State Senate District 38 (0.4%); its state house districts are State House District 70 (100%) and State House District 75 (0.4%).

1,721residents (2020 Census)
29.9 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Big Rock63%

CountyShare of ZIP residents
Kane County98%
DeKalb County2.0%

Town or county subdivisionShare of ZIP residents
Big Rock township98%
Squaw Grove township1.6%
Sandwich township0.4%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 14th congressional district (IL-14)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IL-14)Lauren Underwood (D)202-225-2976100%
U.S. SenatorRichard J. Durbin (D)202-224-2152 · contact formstatewide
U.S. SenatorTammy Duckworth (D)202-224-2854 · contact formstatewide
State Senator (State Senate District 35)Dave Syverson (R)815-987-7555100%
State Senator (State Senate District 38)Sue Rezin (R)815-220-87200.4%
State Representative (State House District 70)Jeff Keicher (R)815-748-3494100%
State Representative (State House District 75)Jed Davis (R)331-867-82000.4%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 35100%
State Senate District 380.4%

State house districtShare of ZIP residents
State House District 70100%
State House District 750.4%

Voting precincts

4 voting precincts overlap ZIP 60511. Map them, with each precinct's share of the ZIP's residents.

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ZIP 60511 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.