Boundary Atlas

ZIP code 48875: Portland, MI

ZIP code 48875 is in Portland (36% of residents), in Ionia County (95%) and Clinton County (4.8%), Michigan. 64% of its residents live outside city limits. It is in Michigan's 2nd congressional district (95%) and Michigan's 7th congressional district (4.8%). Its state senate districts are State Senate District 33 (95%), State Senate District 28 (4.8%) and State Senate District 18 (0.3%); its state house districts are State House District 78 (95%) and State House District 77 (4.8%).

10,582residents (2020 Census)
85.2 sq miland area
1cities and towns
2congressional districts
9voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Portland36%

CountyShare of ZIP residents
Ionia County95%
Clinton County4.8%

Town or county subdivisionShare of ZIP residents
Portland city36%
Portland township29%
Danby township21%
Sebewa township4.5%
Orange township4.5%
Eagle township2.8%
Westphalia township2.0%
Berlin township0.3%
Odessa township0.3%

Congressional districts

Congressional districtShare of ZIP residents
Michigan's 2nd congressional district (MI-02)95%
Michigan's 7th congressional district (MI-07)4.8%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MI-02)John R. Moolenaar (R)202-225-356195%
U.S. Representative (MI-07)Tom Barrett (R)202-225-48724.8%
U.S. SenatorElissa Slotkin (D)202-224-4822statewide
U.S. SenatorGary C. Peters (D)202-224-6221 · contact formstatewide
State Senator (State Senate District 33)Rick Outman (R)95%
State Senator (State Senate District 28)Sam Singh (Democratic)4.8%
State Senator (State Senate District 18)Thomas Albert (R)0.3%
State Representative (State House District 78)Gina Johnsen (R)95%
State Representative (State House District 77)Emily Dievendorf (Democratic)4.8%

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 3395%
State Senate District 284.8%
State Senate District 180.3%

State house districtShare of ZIP residents
State House District 7895%
State House District 774.8%

Voting precincts

9 voting precincts overlap ZIP 48875. Map them, with each precinct's share of the ZIP's residents.

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ZIP 48875 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.