Boundary Atlas

ZIP code 98850: Rock Island, WA

ZIP code 98850 is in Rock Island (65% of residents), in Douglas County, Washington. 35% of its residents live outside city limits. It is in Washington's 4th congressional district. Its state senate districts are Legislative (Senate) District 13 (100%) and Legislative (Senate) District 7 (0.1%); its state house districts are Legislative (House) District 13 (100%) and Legislative (House) District 7 (0.1%).

1,964residents (2020 Census)
76.2 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Washington

City and county

City or townShare of ZIP residents
Rock Island65%

CountyShare of ZIP residents
Douglas County100%

Town or county subdivisionShare of ZIP residents
East Wenatchee CCD100%
Waterville CCD0.1%

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 13)Judy Warnick (R)100%
State Senator (Legislative (Senate) District 7)Shelly Short (R)0.1%
State Representative (Legislative (House) District 13)Alex Ybarra (R)100%
State Representative (Legislative (House) District 13)Tom Dent (R)100%
State Representative (Legislative (House) District 7)Andrew Engell (R)0.1%
State Representative (Legislative (House) District 7)Hunter Abell (R)0.1%

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 13100%
Legislative (Senate) District 70.1%

State house districtShare of ZIP residents
Legislative (House) District 13100%
Legislative (House) District 70.1%

Voting precincts

4 voting precincts overlap ZIP 98850. Map them, with each precinct's share of the ZIP's residents.

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ZIP 98850 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.