Boundary Atlas

ZIP code 45817: Bluffton, OH

ZIP code 45817 is in Bluffton (62% of residents), in Allen County (81%), Hancock County (18%) and Putnam County (0.8%), Ohio. 38% of its residents live outside city limits. It is in Ohio's 4th congressional district (81%), Ohio's 5th congressional district (18%) and Ohio's 9th congressional district (0.8%). Its state senate districts are State Senate District 12 (81%) and State Senate District 1 (19%); its state house districts are State House District 78 (81%), State House District 83 (18%) and State House District 82 (0.8%).

6,420residents (2020 Census)
64.0 sq miland area
1cities and towns
3congressional districts
9voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Bluffton62%

CountyShare of ZIP residents
Allen County81%
Hancock County18%
Putnam County0.8%

Town or county subdivisionShare of ZIP residents
Richland township81%
Orange township15%
Union township2.8%
Riley township0.8%
Jackson township0.8%

Congressional districts

Congressional districtShare of ZIP residents
Ohio's 4th congressional district (OH-04)81%
Ohio's 5th congressional district (OH-05)18%
Ohio's 9th congressional district (OH-09)0.8%

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

OfficeMemberContactShare of residents
U.S. Representative (OH-04)Jim Jordan (R)202-225-267681%
U.S. Representative (OH-05)Robert E. Latta (R)202-225-640518%
U.S. Representative (OH-09)Marcy Kaptur (D)202-225-41460.8%
U.S. SenatorBernie Moreno (R)202-224-2315statewide
U.S. SenatorJon Husted (R)202-224-3353statewide
State Senator (State Senate District 12)Susan Manchester (R)419-820-815181%
State Senator (State Senate District 1)Rob McColley (R)19%
State Representative (State House District 78)Matt Huffman (R)81%
State Representative (State House District 83)Ty Mathews (R)18%
State Representative (State House District 82)Roy Klopfenstein (R)0.8%

Elected in 2024 under OH's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

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 1281%
State Senate District 119%

State house districtShare of ZIP residents
State House District 7881%
State House District 8318%
State House District 820.8%

Voting precincts

9 voting precincts overlap ZIP 45817. 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:45817")

ZIP 45817 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.