Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2025. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
Arlington, Washington, in Snohomish County, has about 22,000 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the Prosecuting Attorney files charges, a case in the Snohomish County Superior Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Arlington public records, Snohomish County arrest records, Washington arrest records and Washington inmate search.
Who Makes Arrests in Arlington
The FBI lists Arlington with an arrest reporting agency of its own, filed as Arlington Police Department. It reported 874 arrests for 2025. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the Snohomish County Sheriff's Office is the county agency. It reported 3,397 arrests for 2025.
The FBI's agency list also places one more agency in Snohomish County: Snohomish County Auto Theft Task Force (other).
How Many Arrests Arlington Reports
Each agency reports its arrests to the FBI by month, and the FBI publishes them on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Arlington: 874 for 2025, 1,053 for 2024, 786 for 2023, 664 for 2022, 595 for 2021 and 968 for 2020.
Arlington's 874 arrests in 2025 were down 17 percent from 1,053 in 2024.
Through July 2026, Arlington reported 344 arrests, against 596 in the same months of 2025.
Across Snohomish County, the 16 agencies with all twelve months of 2025 on file reported 17,726 arrests between them.
Booking: Where People Arrested in Arlington Are Held
A person kept in custody after an arrest in Arlington is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
On an average day in 2023 the jail held about 520 people, down from about 1,010 in 2019. Its rated capacity in 2023 was 1,244 beds, and it ran at 42 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Snohomish County Sheriff's Office at snohomishcountywa.gov/3310/Requesting-Jail-Records (page title: Requesting Jail Records | Snohomish County, WA), phone 425-388-3526, 3000 Rockefeller Ave., M/S 509 Everett, WA 98201, which answered when SearchSystems opened it on September 23, 2026.
A person sentenced to prison serves the sentence in a facility of the Washington State Department of Corrections, whose inmate locator is at doc.wa.gov/records/incarcerated-data-search/incarcerated-search.
How to Find Out About an Arrest in Arlington
An arrest in Arlington can be traced in two places, depending on where the case stands: the case index of the Snohomish County Superior Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at snohomishcountywa.gov/5508/Access-Court-Records, phone 425-388-3466); the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at snohomishcountywa.gov/202/Prosecutor, phone 425-388-3333).
Statewide, Washington Courts Search Case Records is the Administrative Office of the Courts' free statewide case search.
Washington is one of the states that lets anyone look up another person's statewide criminal history: WATCH lets anyone search conviction records by name online, for $12 a search, through the Washington State Patrol. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Arlington
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Public Records Act (RCW 42.56) the agency must answer within 5 business days, and it may charge for copies at 15 cents a page, and set fees for electronic records.
- An arrest by the Arlington police: the police records page SearchSystems verified at arlingtonwa.gov/838/Records (page title: Records | Arlington, WA), phone 360-403-3400, which answered when SearchSystems opened it on September 25, 2026.
- An arrest by the Snohomish County Sheriff's Office: ask its records unit, reached through the office at 425-388-3526.
- A defendant who has been charged gets the report through the case: the Prosecuting Attorney, 425-388-3333, handles discovery for pending cases.
- The court file of a case that was filed: the Snohomish County Superior Court, through the court records page at snohomishcountywa.gov, phone 425-388-3466.
- Your own statewide record: the same request described above, for your own name.
The Snohomish County guide covers every agency in the county: Snohomish County arrest records.
Frequently Asked Questions
How many arrests are made in Arlington each year?
Arlington reported 874 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Arlington?
Ask the Snohomish County Sheriff's Office at 425-388-3526; its jail page SearchSystems verified is at snohomishcountywa.gov.
Where are people arrested in Arlington booked?
Those kept in custody go to the county jail, run by the Snohomish County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Arlington?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Washington State Patrol: WATCH lets anyone search conviction records by name online, for $12. The arrest report itself is released by the agency that made the arrest, under the Public Records Act (RCW 42.56).
How do I get a copy of an arrest report in Arlington?
From the agency that made the arrest: the Arlington police for its own arrests, the Snohomish County Sheriff's Office for the sheriff's. Under the Public Records Act (RCW 42.56) the answer is due within 5 business days.
Is this the official Arlington website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.