ZIP code 62035: Godfrey, IL
ZIP code 62035 is in Godfrey (91% of residents) and Alton (2.3%), in Madison County (95%) and Jersey County (5.0%), Illinois. 6.4% of its residents live outside city limits. It is in Illinois's 15th congressional district (93%) and Illinois's 13th congressional district (7.1%). Its state senate districts are State Senate District 50 (69%) and State Senate District 56 (31%); its state house districts are State House District 100 (69%) and State House District 111 (31%).
See it on the mapAll of Illinois
City and county
| City or town | Share of ZIP residents |
|---|---|
| Godfrey | 91% |
| Alton | 2.3% |
| County | Share of ZIP residents |
|---|---|
| Madison County | 95% |
| Jersey County | 5.0% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Godfrey village | 91% |
| Elsah township | 3.6% |
| Alton township | 2.3% |
| Foster township | 1.4% |
| Piasa township | 0.9% |
| Mississippi township | 0.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Illinois's 15th congressional district (IL-15) | 93% |
| Illinois's 13th congressional district (IL-13) | 7.1% |
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.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 50 | 69% |
| State Senate District 56 | 31% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 100 | 69% |
| State House District 111 | 31% |
Voting precincts
20 voting precincts overlap ZIP 62035. 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:62035")
ZIP 62035 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.