Boundary Atlas

ZIP code 48051: Chesterfield, MI

ZIP code 48051 is in Macomb County, Michigan, outside any city or Census-designated place. It is in Michigan's 9th congressional district. Its state senate district is State Senate District 12; its state house districts are State House District 63 (75%) and State House District 62 (25%).

17,718residents (2020 Census)
14.2 sq miland area
0cities and towns
1congressional district
7voting precincts

See it on the mapAll of Michigan

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Macomb County100%

Town or county subdivisionShare of ZIP residents
Chesterfield township100%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 9th congressional district (MI-09)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MI-09)Lisa C. McClain (R)202-225-2106100%
U.S. SenatorElissa Slotkin (D)202-224-4822statewide
U.S. SenatorGary C. Peters (D)202-224-6221 · contact formstatewide
State Senator (State Senate District 12)Kevin Hertel (Democratic)100%
State Representative (State House District 63)Jay DeBoyer (R)75%
State Representative (State House District 62)Alicia St. Germaine (R)25%

Elected under MI's previous legislative map; the district's lines changed for 2026.

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 12100%

State house districtShare of ZIP residents
State House District 6375%
State House District 6225%

Voting precincts

7 voting precincts overlap ZIP 48051. 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:48051")

ZIP 48051 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.