Benton County, Washington elections office: address and phone for 2026
The Washington Secretary of State lists the Benton County Elections at 7122 W Okanogan Pl, Bldg F, Kennewick, WA 99336, phone 509-736-3085. Washington: Voting period opens Friday, October 16. Washington votes by mail; this office runs the county's voting centers and drop boxes.
Benton County elections office
Benton County Elections
Office: 7122 W Okanogan Pl, Bldg F, Kennewick, WA 99336
Mailing address: PO Box 1000, Richland, WA 99352
Phone: 509-736-3085
Regular office hours: Monday to Friday, 8:30 a.m. to 4:30 p.m.
Find your voting centers and ballot drop boxes at VoteWA.
Washington voting dates for Benton County voters
| Date | What |
|---|---|
| Fri, Oct 16 | Voting begins and ballots go out Washington votes by mail. Every registered voter is mailed a ballot. source |
| Fri, Oct 16, 8:00 AM | Voting period opens The 18-day voting period starts Oct 16: ballots are mailed and voting centers open. source |
| Mon, Oct 26 | Register online or by mail Online and mail registrations must be received by Oct 26. After that, register in person until 8 p.m. on Election Day. source |
| Tue, Nov 3, 8:00 PM | Election Day: drop boxes close at 8:00 p.m. Washington votes by mail. source |
| Tue, Nov 3, 8:00 PM | Register in person Register in person during business hours and until 8 p.m. on Election Day. source |
| Tue, Nov 3, 8:00 PM | Return your ballot Deposit your ballot in an official drop box by 8 p.m. on Election Day. source |
Benton County voting questions
What is the phone number for the Benton County elections office?
509-736-3085, the Elections (Benton County's elections office on the Washington Secretary of State, County Elections Offices list).
What is the address of the Benton County elections office?
7122 W Okanogan Pl, Bldg F, Kennewick, WA 99336. Mailing address: PO Box 1000, Richland, WA 99352.
When does early voting start in Benton County?
Voting period opens Friday, October 16, 2026. The 18-day voting period starts Oct 16: ballots are mailed and voting centers open.
More for Washington voters
- Who is on the Washington ballot: every candidate on the state's official list, race by race.
- Washington voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Every Washington county's office.
- Early voting dates in every state.
Other Washington counties: Adams, Asotin, Chelan, Clallam, Clark, Columbia, Cowlitz, Douglas, Ferry, Franklin, Garfield, Grant, Grays Harbor, Island, Jefferson, King, Kitsap, Kittitas, Klickitat, Lewis, Lincoln, Mason, Okanogan, Pacific, Pend Oreille, Pierce, San Juan, Skagit, Skamania, Snohomish, Spokane, Stevens, Thurston, Wahkiakum, Walla Walla, Whatcom, Whitman, Yakima.
Office details are from the Washington Secretary of State, County Elections Offices (checked October 14, 2026). Dates are Washington's, each linked to its source. Call the office before you go.