Boundary Atlas

ZIP code 48169: Hamburg, MI

ZIP code 48169 is in Pinckney (12% of residents), in Livingston County (95%) and Washtenaw County (4.8%), Michigan. 88% of its residents live outside city limits. It is in Michigan's 7th congressional district (95%) and Michigan's 6th congressional district (4.8%). Its state senate districts are State Senate District 22 (95%) and State Senate District 14 (4.8%); its state house districts are State House District 48 (77%) and State House District 50 (23%).

20,336residents (2020 Census)
57.7 sq miland area
1cities and towns
2congressional districts
13voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Pinckney12%

CountyShare of ZIP residents
Livingston County95%
Washtenaw County4.8%

Town or county subdivisionShare of ZIP residents
Hamburg township52%
Putnam township38%
Unadilla township4.4%
Dexter township4.3%
Webster township0.4%
Marion township0.1%
Lyndon township<0.1%

Congressional districts

Congressional districtShare of ZIP residents
Michigan's 7th congressional district (MI-07)95%
Michigan's 6th congressional district (MI-06)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-07)Tom Barrett (R)202-225-487295%
U.S. Representative (MI-06)Debbie Dingell (D)202-225-40714.8%
U.S. SenatorElissa Slotkin (D)202-224-4822statewide
U.S. SenatorGary C. Peters (D)202-224-6221 · contact formstatewide
State Senator (State Senate District 22)Lana Theis (R)95%
State Senator (State Senate District 14)Sue Shink (Democratic)4.8%
State Representative (State House District 48)Jennifer Conlin (Democratic)77%
State Representative (State House District 50)Jason Woolford (R)23%

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 2295%
State Senate District 144.8%

State house districtShare of ZIP residents
State House District 4877%
State House District 5023%

Voting precincts

13 voting precincts overlap ZIP 48169. 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:48169")

ZIP 48169 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.