Boundary Atlas

ZIP code 99320: Benton City, WA

ZIP code 99320 is in Benton City (34% of residents), in Benton County, Washington. 66% of its residents live outside city limits. It is in Washington's 4th congressional district. Its state senate districts are Legislative (Senate) District 16 (70%) and Legislative (Senate) District 8 (30%); its state house districts are Legislative (House) District 16 (70%) and Legislative (House) District 8 (30%).

10,215residents (2020 Census)
209.3 sq miland area
1cities and towns
1congressional district
24voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Benton City34%

CountyShare of ZIP residents
Benton County100%

Town or county subdivisionShare of ZIP residents
Benton City CCD60%
Richland-Kennewick CCD34%
Northwest Benton CCD5.2%
Hanford Site CCD0.2%

Congressional district

Congressional districtShare of ZIP residents
Washington's 4th congressional district (WA-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WA-04)Dan Newhouse (R)202-225-5816100%
U.S. SenatorMaria Cantwell (D)202-224-3441 · contact formstatewide
U.S. SenatorPatty Murray (D)202-224-2621 · contact formstatewide
State Senator (Legislative (Senate) District 16)Perry Dozier (R)70%
State Senator (Legislative (Senate) District 8)Matt Boehnke (R)30%
State Representative (Legislative (House) District 16)Mark Klicker (R)70%
State Representative (Legislative (House) District 16)Skyler Rude (R)70%
State Representative (Legislative (House) District 8)April Connors (R)30%
State Representative (Legislative (House) District 8)Stephanie Barnard (R)30%

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
Legislative (Senate) District 1670%
Legislative (Senate) District 830%

State house districtShare of ZIP residents
Legislative (House) District 1670%
Legislative (House) District 830%

Voting precincts

24 voting precincts overlap ZIP 99320. Map them, with each precinct's share of the ZIP's residents.

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ZIP 99320 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.