Boundary Atlas

ZIP code 48312: Sterling Heights, MI

ZIP code 48312 is in Sterling Heights, in Macomb County, Michigan. It is in Michigan's 10th congressional district. Its state senate districts are State Senate District 11 (100%) and State Senate District 9 (<0.1%); its state house districts are State House District 58 (63%), State House District 61 (37%) and State House District 57 (<0.1%).

34,854residents (2020 Census)
11.1 sq miland area
1cities and towns
1congressional district
15voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Sterling Heights100%

CountyShare of ZIP residents
Macomb County100%

Town or county subdivisionShare of ZIP residents
Sterling Heights city100%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 10th congressional district (MI-10)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 11100%
State Senate District 9<0.1%

State house districtShare of ZIP residents
State House District 5863%
State House District 6137%
State House District 57<0.1%

Voting precincts

15 voting precincts overlap ZIP 48312. 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:48312")

ZIP 48312 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.