Boundary Atlas

ZIP code 45862: Mendon, OH

ZIP code 45862 is in Mendon (45% of residents), in Mercer County (97%) and Auglaize County (2.8%), Ohio. 55% of its residents live outside city limits. It is in Ohio's 4th congressional district. Its state senate district is State Senate District 12; its state house districts are State House District 84 (97%) and State House District 78 (2.8%).

1,408residents (2020 Census)
36.6 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Mendon45%

CountyShare of ZIP residents
Mercer County97%
Auglaize County2.8%

Town or county subdivisionShare of ZIP residents
Union township83%
Dublin township10%
Salem township2.8%
Center township2.3%
Hopewell township2.2%

Congressional district

Congressional districtShare of ZIP residents
Ohio's 4th congressional district (OH-04)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 12100%

State house districtShare of ZIP residents
State House District 8497%
State House District 782.8%

Voting precincts

5 voting precincts overlap ZIP 45862. Map them, with each precinct's share of the ZIP's residents.

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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:45862")

ZIP 45862 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.