Boundary Atlas

ZIP code 84109: Millcreek, UT

ZIP code 84109 is in Millcreek (76% of residents) and Salt Lake City (24%), in Salt Lake County, Utah. It is in Utah's 1st congressional district. Its state senate districts are State Senate District 14 (95%), State Senate District 9 (4.7%) and State Senate District 15 (<0.1%); its state house districts are State House District 33 (78%) and State House District 23 (22%).

24,768residents (2020 Census)
57.0 sq miland area
2cities and towns
1congressional district
28voting precincts

See it on the mapAll of Utah

City and county

City or townShare of ZIP residents
Millcreek76%
Salt Lake City24%

CountyShare of ZIP residents
Salt Lake County100%

Town or county subdivisionShare of ZIP residents
Salt Lake City CCD91%
Emigration CCD9.3%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorErin Mendenhall801-535-770424%
U.S. Representative (UT-01)Blake D. Moore (R)202-225-0453100%
U.S. SenatorJohn R. Curtis (R)202-224-5251statewide
U.S. SenatorMike Lee (R)202-224-5444 · contact formstatewide
State Senator (State Senate District 14)Stephanie Pitcher (Democratic)95%
State Senator (State Senate District 9)Jen Plumb (Democratic)4.7%
State Senator (State Senate District 15)Kathleen Riebe (Democratic)<0.1%
State Representative (State House District 33)Doug Owens (Democratic)78%
State Representative (State House District 23)Hoang Nguyen (Democratic)801-842-422022%

Elected in 2024 under UT's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 1495%
State Senate District 94.7%
State Senate District 15<0.1%

State house districtShare of ZIP residents
State House District 3378%
State House District 2322%

Voting precincts

28 voting precincts overlap ZIP 84109. Map them, with each precinct's share of the ZIP's residents.

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ZIP 84109 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.