SearchSystems Editorial

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 2024. 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.

About this guide

Mill Creek, Washington, in Snohomish County, has about 21,000 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: Mill Creek public records, Snohomish County arrest records, Washington arrest records and Washington inmate search.

Who Makes Arrests in Mill Creek

The FBI lists Mill Creek with an arrest reporting agency of its own, filed as Mill Creek Police Department. It reported 378 arrests for 2024, its latest complete year. 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 Mill Creek Reports

The FBI publishes every agency's monthly arrest counts 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.

  • Mill Creek: 378 for 2024, 318 for 2023, 246 for 2022, 188 for 2021 and 224 for 2020.

Mill Creek's 378 arrests in 2024 were up 19 percent from 318 in 2023.

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 Mill Creek Are Held

A person kept in custody after an arrest in Mill Creek 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 sentence of more than a year is served in state prison; the Washington State Department of Corrections lists its inmates at doc.wa.gov/records/incarcerated-data-search/incarcerated-search.

How to Find Out About an Arrest in Mill Creek

Whether someone was arrested in Mill Creek, and what came of it, shows up in two places: 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 Mill Creek

The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. 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 Mill Creek police: the police department's page SearchSystems verified at millcreekwa.gov/police (page title: Police Department | City of Mill Creek), phone (425) 407-3999, 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 Mill Creek each year?

Mill Creek reported 378 arrests to the FBI for 2024, its latest full year.

How do I find out if someone is in jail in Mill Creek?

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 Mill Creek 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 Mill Creek?

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 Mill Creek?

From the agency that made the arrest: the Mill Creek 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 Mill Creek 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.