Boundary Atlas

ZIP code 45656: Oak Hill, OH

ZIP code 45656 is in Oak Hill (22% of residents), in Jackson County (92%), Gallia County (5.4%), Lawrence County (2.1%) and Scioto County (0.4%), Ohio. 78% of its residents live outside city limits. It is in Ohio's 2nd congressional district. Its state senate districts are State Senate District 17 (100%) and State Senate District 14 (0.4%); its state house districts are State House District 93 (100%) and State House District 90 (0.4%).

6,532residents (2020 Census)
133.8 sq miland area
1cities and towns
1congressional district
15voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Oak Hill22%

CountyShare of ZIP residents
Jackson County92%
Gallia County5.4%
Lawrence County2.1%
Scioto County0.4%

Town or county subdivisionShare of ZIP residents
Jefferson township51%
Madison township30%
Hamilton township5.9%
Franklin township4.6%
Greenfield township3.5%
Washington township2.1%
Perry township1.4%
Scioto township0.6%
Raccoon township0.5%
Madison township0.4%

Congressional district

Congressional districtShare of ZIP residents
Ohio's 2nd congressional district (OH-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 17100%
State Senate District 140.4%

State house districtShare of ZIP residents
State House District 93100%
State House District 900.4%

Voting precincts

15 voting precincts overlap ZIP 45656. 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:45656")

ZIP 45656 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.