Boundary Atlas

ZIP code 48629: Houghton Lake, MI

ZIP code 48629 is in Houghton Lake (54% of residents) and Prudenville (1.1%), in Roscommon County, Michigan. 45% of its residents live outside city limits. It is in Michigan's 1st congressional district. Its state senate district is State Senate District 36; its state house district is State House District 105.

7,420residents (2020 Census)
77.5 sq miland area
2cities and towns
1congressional district
6voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Houghton Lake54%
Prudenville1.1%

CountyShare of ZIP residents
Roscommon County100%

Town or county subdivisionShare of ZIP residents
Roscommon township56%
Lake township15%
Denton township15%
Markey township14%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 1st congressional district (MI-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 36100%

State house districtShare of ZIP residents
State House District 105100%

Voting precincts

6 voting precincts overlap ZIP 48629. Map them, with each precinct's share of the ZIP's residents.

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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:48629")

ZIP 48629 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.