Boundary Atlas

ZIP code 28403: Wilmington, NC

ZIP code 28403 is in Wilmington, in New Hanover County, North Carolina. It is in North Carolina's 7th congressional district. Its state senate districts are State Senate District 7 (83%) and State Senate District 8 (17%); its state house districts are State House District 18 (89%) and State House District 20 (11%).

38,134residents (2020 Census)
14.0 sq miland area
1cities and towns
1congressional district
12voting precincts

See it on the mapAll of North Carolina

City and county

City or townShare of ZIP residents
Wilmington100%

CountyShare of ZIP residents
New Hanover County100%

Town or county subdivisionShare of ZIP residents
Wilmington township100%

Congressional district

Congressional districtShare of ZIP residents
North Carolina's 7th congressional district (NC-07)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 783%
State Senate District 817%

State house districtShare of ZIP residents
State House District 1889%
State House District 2011%

Voting precincts

12 voting precincts overlap ZIP 28403. 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:28403")

ZIP 28403 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.