Boundary Atlas

ZIP code 44903: Mansfield, OH

ZIP code 44903 is in Mansfield (39% of residents) and Ontario (6.9%), in Richland County (98%), Morrow County (1.7%) and Ashland County (0.4%), Ohio. 54% of its residents live outside city limits. It is in Ohio's 5th congressional district (53%), Ohio's 4th congressional district (46%) and Ohio's 7th congressional district (0.4%). Its state senate districts are State Senate District 22 (98%) and State Senate District 26 (1.7%); its state house districts are State House District 76 (98%), State House District 87 (1.7%) and State House District 67 (0.4%).

25,613residents (2020 Census)
114.1 sq miland area
2cities and towns
3congressional districts
48voting precincts

See it on the mapAll of Ohio

City and county

City or townShare of ZIP residents
Mansfield39%
Ontario6.9%

CountyShare of ZIP residents
Richland County98%
Morrow County1.7%
Ashland County0.4%

Town or county subdivisionShare of ZIP residents
Mansfield city39%
Springfield township18%
Mifflin township13%
Washington township9.0%
Madison township5.7%
Weller township4.7%
Franklin township4.3%
Troy township2.1%
Troy township1.7%
Jackson township1.0%
Sandusky township0.5%
Milton township0.3%
Monroe township0.2%
Mifflin township0.1%

Congressional districts

Congressional districtShare of ZIP residents
Ohio's 5th congressional district (OH-05)53%
Ohio's 4th congressional district (OH-04)46%
Ohio's 7th congressional district (OH-07)0.4%

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 districtShare of ZIP residents
State Senate District 2298%
State Senate District 261.7%

State house districtShare of ZIP residents
State House District 7698%
State House District 871.7%
State House District 670.4%

Voting precincts

48 voting precincts overlap ZIP 44903. 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:44903")

ZIP 44903 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.