King County Correctional Facility Overview
King County Correctional Facility, often shortened to KCCF, is the primary adult secure jail for King County in downtown Seattle. The official adult jails page lists KCCF at 500 Fifth Ave. and identifies it with the Maleng Regional Justice Center as the county's two main adult jail buildings. Both are operated by the King County Department of Adult and Juvenile Detention, not the Sheriff's Office. That agency distinction matters because DAJD runs custody, jail records, population reports, visits, mail, phone service, bail receipt, and the public jail lookup system.
KCCF opened in 1986 and sits near the Seattle courts and civic campus. King County says the public entrance is at the northwest corner of Fifth Avenue and James Street. The jail holds adults booked on felony matters from across King County and misdemeanor bookings for Seattle and many local jurisdictions. It also holds people serving court-ordered jail sentences, people awaiting hearings, and people held on warrants or other court orders. If a person has moved to the Maleng Regional Justice Center, the same DAJD lookup and phone line still apply.
The official King County adult jails page shows the Seattle and Kent jail contacts in one place. The King County adult jails source page is the matching source for this facility image.
The county page is useful because it treats KCCF and MRJC as one adult jail system while still listing their separate addresses, directions, and public counter details.
King County Facility Population
King County does not publish a simple rated-bed count for KCCF on the captured facility page. The stronger official source is the DAJD Detention and Alternatives Report series, which reports Average Daily Population, or ADP, by adult jail location. ADP means the average count of people in custody each day across the reporting period. It is a better sourced number for KCCF than unsourced bed-capacity figures found on nonofficial jail directories.
| Measure | Figure | Source |
|---|---|---|
| KCCF adult secure ADP | 790.3 | DAJD 2025 Detention and Alternatives Report |
| KCCF adult secure ADP | 744.8 | DAJD 2026 through May scorecard |
| System adult secure ADP | 1,411.5 | DAJD 2025 report for KCCF and MRJC combined |
King County Correctional Facility Lookup
Adults held at KCCF are searched through the King County Subject Lookup Tool. King County says the tool can show whether an adult is in custody, where the person is being held, and the booking number, also called the Book of Arrest or B/A number. The B/A number is central in King County because it is used for contact, money deposits, legal mail, and health-concern calls. The lookup covers people who have been at King County jails during the last year, so it can also help with a recent release or transfer.
- Open the Subject Lookup Tool and start with the last name. Add first name and date of birth when the name is common.
- Use Currently In Custody = Yes when the goal is to confirm a current KCCF inmate record.
- Use the Facility filter only when the location is known. Over-filtering can hide a person who moved from KCCF to MRJC, court, or an alternative program.
- Review the result for current custody, facility location, booking details, bail, and B/A number.
- If no record appears, call the adult jail information line or check SCORE, Kent, Washington DOC, BOP, or ICE depending on the arresting agency and case type.
| Search Field | Use at KCCF | Notes |
|---|---|---|
| Last Name / First Name | Name search | Best first step for a recent arrest. |
| DOB | Narrows results | Useful for common names. |
| Facility | King County Correctional Facility | Leave blank if the person may have moved. |
| Currently In Custody | Yes / No | Use Yes for active jail custody. |
For a broader explanation of county jail records, use the King County jail inmate records page.
King County Correctional Facility Contact
The KCCF public counter handles adult jail customer-service questions, but staff may not be able to release confidential information. Bring valid identification for in-person business. King County notes a daily reception closure from 2:20 p.m. to 2:40 p.m.; during that period staff do not begin new business, though professional visitors leaving the jail can exchange a visitor badge for identification.
King County Correctional Facility
500 Fifth Ave.
Seattle, WA 98104
206-296-1234
Public entrance at Fifth Avenue and James Street; reception closes daily from 2:20 p.m. to 2:40 p.m.
DAJD Records Requests
Records Request, 500 5th Avenue
Seattle, WA 98104
206-477-5130
records.DAJD@kingcounty.gov
King County Correctional Facility Visits
KCCF in-person visits are limited and based on housing location. King County says residents may have one one-hour visit period each week, and visiting times are posted by housing unit. Visits are first-come, first-served. Visitors must check in 15 minutes before the visit, show government-issued picture identification, wear shoes, and follow the dress code. Up to four visitors may visit at once, and one visitor must be an adult. Youth visitors must remain under direct adult supervision.
| Visit Type | KCCF Rule | Source |
|---|---|---|
| In-person | One hour per week by housing-location schedule | King County adult jail visits |
| Check-in | Arrive 15 minutes before the visit | DAJD visiting rules |
| Video | Up to six free video visits per week through Securus Video Connect | King County video visit page |
| Lawyer video | Not recorded when handled as attorney video visit | DAJD video visit rules |
The official visitation page is the source for King County's adult visit rules and schedule links.
Use the posted KCCF housing schedule or call before travel because a housing move can change a resident's visit window.
King County Correctional Facility Mail Money
Ordinary personal mail for KCCF does not go straight to the Seattle jail. King County requires non-legal adult jail mail to be sent by USPS to the Securus Digital Mail Center in Tampa with the resident's full name and 10-digit booking number. The mail is scanned, screened, and made available on tablets or kiosks if approved. Physical mail is destroyed after scanning and retention periods. Legal mail and publications go directly to the facility address with the booked name and B/A number.
| Service | Provider / Address | Key Detail |
|---|---|---|
| Personal mail | Full name and booking number, C/O Securus Digital Mail Center-King County, P.O. Box 20245, Tampa, FL 33622 | White paper, black or blue ink, white envelope, USPS only. |
| Legal mail | Full booked name and B/A number, 500 Fifth Ave., Seattle, WA 98104 | Sent directly to KCCF, not the digital mail center. |
| Phone | Securus | Two free calls per week; extra calls are 5 cents per minute. |
| Money | Access Corrections | Online, app, kiosk, phone, retail cash, or mailed money order. |
| Care package | Access Securepak / washingtonpackages.com | Up to $40 per week. |
Bail may be paid at KCCF reception from 7 a.m. to 10 p.m. with cash, cashier's check, or money order. King County warns families to use official bail channels and avoid callers who claim they can secure release for a fee.
KCCF Booking and Programs
Booking at KCCF creates the custody record that later appears in the Subject Lookup Tool and related King County data. A booking entry is not a conviction and is not the complete court case. King County's open Jail Bookings dataset covers adult bookings within the last 12 months and warns that it does not provide court cause, court case, or criminal filing information. Court charges and hearing dates must be checked in court systems after the jail booking.
King County says adult jail residents may have access to medical and behavioral health care, education, vocational and personal development programs, religious services, recreation, drug and alcohol counseling, and release planning. Jail Health Services is part of Public Health - Seattle & King County. Family members with medication or health concerns can call 206-296-1091 or email JHSRequests@kingcounty.gov and include the person's name, booking number, caller contact information, and the concern.
Release planning is also part of the adult jail service picture. King County tracks alternatives such as Electronic Home Detention, Community Center for Alternative Programs, and Pretrial Assessment and Linkage Services in the same population-reporting system used for KCCF and MRJC. Those programs explain why a person may appear in a DAJD search but not be housed in a standard jail unit. The facility field, custody status, and B/A number should be read together before making travel, mail, or deposit plans.
Note: Confirm custody, B/A number, and visit status with DAJD before traveling to KCCF or sending time-sensitive mail.