Boundary Atlas

ZIP code 48428: Dryden, MI

ZIP code 48428 is in Dryden (21% of residents), in Lapeer County (100%) and Oakland County (0.3%), Michigan. 79% of its residents live outside city limits. It is in Michigan's 9th congressional district. Its state senate districts are State Senate District 23 (95%) and State Senate District 26 (4.8%); its state house districts are State House District 65 (100%) and State House District 66 (0.3%).

4,897residents (2020 Census)
33.0 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Dryden21%

CountyShare of ZIP residents
Lapeer County100%
Oakland County0.3%

Town or county subdivisionShare of ZIP residents
Dryden township87%
Almont township8.0%
Attica township4.8%
Addison township0.3%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2395%
State Senate District 264.8%

State house districtShare of ZIP residents
State House District 65100%
State House District 660.3%

Voting precincts

5 voting precincts overlap ZIP 48428. 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:48428")

ZIP 48428 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.