Boundary Atlas

ZIP code 84405: Riverdale, UT

ZIP code 84405 is in Riverdale (27% of residents), Washington Terrace (27%), South Weber (23%), South Ogden (18%) and Uintah (3.9%), in Weber County (77%) and Davis County (23%), Utah. It is in Utah's 2nd congressional district. Its state senate districts are State Senate District 5 (100%) and State Senate District 7 (0.5%); its state house districts are State House District 11 (66%), State House District 10 (26%) and State House District 16 (7.2%).

34,285residents (2020 Census)
18.5 sq miland area
5cities and towns
1congressional district
31voting precincts

See it on the mapAll of Utah

City and county

City or townShare of ZIP residents
Riverdale27%
Washington Terrace27%
South Weber23%
South Ogden18%
Uintah3.9%

CountyShare of ZIP residents
Weber County77%
Davis County23%

Town or county subdivisionShare of ZIP residents
Ogden CCD77%
North Davis CCD23%

Congressional district

Congressional districtShare of ZIP residents
Utah's 2nd congressional district (UT-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (UT-02)Celeste Maloy (R)202-225-9730100%
U.S. SenatorJohn R. Curtis (R)202-224-5251statewide
U.S. SenatorMike Lee (R)202-224-5444 · contact formstatewide
State Senator (State Senate District 5)Ann Millner (R)801-900-3897100%
State Senator (State Senate District 7)Stuart Adams (R)0.5%
State Senator (State Senate District 4)Cal Musselman (R)801-773-1777<0.1%
State Representative (State House District 11)Katy Hall (R)801-834-305966%
State Representative (State House District 10)Jill Koford (R)801-300-253226%
State Representative (State House District 9)Jake Sawyer (R)385-641-5928<0.1%

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: 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 5100%
State Senate District 70.5%
State Senate District 4land only

State house districtShare of ZIP residents
State House District 1166%
State House District 1026%
State House District 167.2%
State House District 9land only

Voting precincts

31 voting precincts overlap ZIP 84405. 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:84405")

ZIP 84405 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.