Search for Inmates on the Jail Roster in Columbia County Washington. Results: Arrest Records, Mugshot, Charges, Bookings, Offense Dates, Offense Description, Related Incidents, Bail Amount, Warrants, Arrest Location, Incarceration Date, Scheduled Release, Jail Housing Location, Court.

Columbia County Information

The population of the county according to the census in 2010 was 4,078, which makes it the least populous in the state of Washington. The county seat is Dayton and was named after Columbia River. The county was founded in 1875 and the total area is 873 square miles. The departments in the county that handle the safety and welfare of the citizens are emergency management, Sheriff, juvenile services, courthouse maintenance, and auditor.

Sheriff’s office

The name of the Sheriff is Rocky L. Miller and it is in the ground floor of Columbia County Courthouse – 341 E. Main Street Dayton, WA 99328

The phone number of the office is 509-382-2518. Office hours are from Monday through Friday from 8:30 am to 4:30 pm

The divisions in the Sheriff’s office are crime watch, boat patrol, search and rescue, jail, outreach, and press release.

It is the vision of the Columbia Sheriff’s office to be recognized as one of the top law enforcement agencies in Washington.

County courthouse

The court administrator is Krissy Anderson and the Presiding Judge is G. Scott Marinella. If you need to contact them, you can send an e-mail to

The phone number is 509-382-4812

The office hours are from Monday through Friday 8:30 am to 4:30 pm

Small claim actions that involve money are given in maximum amounts of $5,000. The small claims can only grant monetary damages judgment. The court has the option to not order the party to give back the property or anything else except to pay.

County jail

341 East Main Street Dayton, WA 99328

Phone number is 509-382-1100

Visitation: Monday 10 am to 11 am, Thursday 7:30 pm and 8:30 pm

Jail Roster Website:

The visitation depends on the availability of the booking room availability of the officer to facilitate the visitation. Contact the Sheriff’s office before visitation to make sure it is not cancelled on that day. The number to call is 509-382-2518

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Columbia County Sheriff’s Office Address

341 East Main Street Dayton, WA 99328

Phone: (509) 382-1100