Boundary Atlas

ZIP code 48766: Mason, MI

ZIP code 48766 is in Twining (11% of residents), in Arenac County, Michigan. 89% 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 99.

1,158residents (2020 Census)
51.9 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
Twining11%

CountyShare of ZIP residents
Arenac County100%

Town or county subdivisionShare of ZIP residents
Mason township65%
Turner township14%
Clayton township12%
Arenac township7.6%
Au Gres township2.2%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MI-01)Jack Bergman (R)202-225-4735100%
U.S. SenatorElissa Slotkin (D)202-224-4822statewide
U.S. SenatorGary C. Peters (D)202-224-6221 · contact formstatewide
State Senator (State Senate District 36)Michele Hoitenga (R)100%
State Representative (State House District 99)Mike Hoadley (R)100%

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 36100%

State house districtShare of ZIP residents
State House District 99100%

Voting precincts

5 voting precincts overlap ZIP 48766. Map them, with each precinct's share of the ZIP's residents.

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ZIP 48766 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.