Boundary Atlas

ZIP code 43780: Richland, OH

ZIP code 43780 is in Senecaville (19% of residents) and Buffalo (2.4%), in Guernsey County (83%) and Noble County (17%), Ohio. 79% of its residents live outside city limits. It is in Ohio's 12th congressional district. Its state senate districts are State Senate District 30 (89%) and State Senate District 31 (11%); its state house districts are State House District 95 (89%) and State House District 97 (11%).

2,235residents (2020 Census)
38.9 sq miland area
3cities and towns
1congressional district
9voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Senecaville19%
Buffalo2.4%
Lore City0.6%

CountyShare of ZIP residents
Guernsey County83%
Noble County17%

Town or county subdivisionShare of ZIP residents
Richland township70%
Seneca township9.2%
Wayne township8.1%
Valley township7.6%
Jackson township3.3%
Center township1.7%

Congressional district

Congressional districtShare of ZIP residents
Ohio's 12th congressional district (OH-12)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (OH-12)Troy Balderson (R)202-225-5355100%
U.S. SenatorBernie Moreno (R)202-224-2315statewide
U.S. SenatorJon Husted (R)202-224-3353statewide
State Senator (State Senate District 30)Brian Chavez (R)89%
State Senator (State Senate District 31)Al Landis (R)11%
State Representative (State House District 95)Ty Moore (R)89%
State Representative (State House District 97)Adam Holmes (R)11%

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 3089%
State Senate District 3111%

State house districtShare of ZIP residents
State House District 9589%
State House District 9711%

Voting precincts

9 voting precincts overlap ZIP 43780. Map them, with each precinct's share of the ZIP's residents.

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ZIP 43780 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.