Mason County Inmate Population Overview
The Mason County inmate population has two main local pieces. The first is the Mason County Jail population in Shelton, operated by the Mason County Sheriff's Office for local arrests, warrants, court commitments, short sentences, holds, and alternative sentencing placements. The second is the state prison population at Washington Corrections Center, a Washington State Department of Corrections prison in Shelton. WCC is not a county jail unit, and it is not searched through the Mason County jail reports. It holds sentenced state prisoners and also serves as the reception center for male individuals entering DOC custody.
That split matters for every Mason County inmate lookup. A person arrested by a county deputy, Shelton-area officer, or other local law enforcement agency may start in the county jail while court action is pending. If that case ends in a state-prison sentence, the person may later move into DOC custody, often through Washington Corrections Center for reception and classification. Federal and immigration custody use separate systems. A Mason County jail roster entry is therefore a current local custody record, not a full criminal-history record and not a state prison profile.
The official county jail source is not a search form. Mason County publishes two public PDF reports from the Sheriff's Office reporting hub: a current inmate list by permanent bed and an offense list by name. Those reports are the first stop for the current Mason County inmate population in the county jail.
Mason County Inmate Population Statistics
The best local statistics source is the WASPC Annual Jail Statistics archive. For the Mason County Sheriff's Office row in the 2024 workbook, WASPC reported 93 facility beds, 56.42 average daily population, 1,122 total admissions, and 17 days average length of stay. WASPC also notes that 2024 data used VINE and JBRS interfaces under RCW 36.28A.040 with survey follow-up, so year-to-year comparisons should be read with that method change in mind. The current jail reports give a same-day roster view, not an annual average.
| Measure | Figure | Source / Year |
|---|---|---|
| Average daily population | 56.42 | WASPC Annual Jail Statistics, 2024 |
| Facility beds | 93 | WASPC Annual Jail Statistics, 2024 |
| Total admissions | 1,122 | WASPC Annual Jail Statistics, 2024 |
| Average length of stay | 17 days | WASPC Annual Jail Statistics, 2024 |
| Current jail roster count | 71 entries | Mason County jail reports inspected July 2, 2026 |
| Washington Corrections Center capacity | 1,268 on DOC facility page; 1,868 on 2025 fact sheet | Washington DOC |
The WASPC jail statistics page is the source used for Mason County jail population tables and the statewide reporting context.
Those annual figures are useful for capacity and trend work, while the Mason County PDF roster remains the better tool for a current custody check.
Mason County Inmate Population Trends
Mason County's reported jail population fell across the recent WASPC series. The annual average daily population moved from 95 in 2020 to 56.42 in 2024. The reported capacity field was 68 design capacity or updated design capacity from 2020 through 2023, then changed to 93 facility beds in 2024. Because the 2024 report also changed methodology and field naming, the safer reading is not that the building definitely expanded. The record supports a narrower point: WASPC's reported bed field changed, and the 2024 average daily population was below the 2024 facility-bed figure.
| Year | Capacity / Beds | ADP | ALOS | Deaths | Notes |
|---|---|---|---|---|---|
| 2020 | 68 design capacity | 95 | 15 | 1 | COVID-era row with some NR fields. |
| 2021 | 68 design capacity | 88 | 15 | 0 | ADP remained over reported capacity. |
| 2022 | 68 updated design capacity | 81 | 15 | 0 | Continued decline from 2020 and 2021. |
| 2023 | 68 updated design capacity | 71 | 15 | 0 | ADP near the reported capacity field. |
| 2024 | 93 facility beds | 56.42 | 17 | No | New format using VINE/JBRS interfaces and survey data. |
| July 2, 2026 | Current roster count | 71 entries | n/a | n/a | Same-day PDF roster count, not an annual average. |
The July 2026 roster count was above the 2024 average daily population but below the 2024 facility-bed figure. That is normal because a roster count is a point-in-time count. Admissions, releases, court commitments, warrants, DOC holds, and short jail sentences can change the count each day. The Mason County inmate population is therefore best read from both sources: WASPC for annual scale, and the Sheriff's PDFs for current names and booking rows.
Mason County Inmate Population Makeup
WASPC's 2024 Mason County row gives average daily population categories, not whole-person counts on one day. Male ADP was 49.33, female ADP was 7.08, and unknown gender ADP was 0. Race and ethnicity fields reported 46.5 White ADP, 0.25 Black ADP, 5.67 American Indian or Alaska Native ADP, 0.75 Asian ADP, 0 Hispanic ADP, and 3.25 unknown race ADP. Those figures should not be rounded into exact headcounts because they are averages across the year.
The local jail roster shows a different type of makeup. It does not publish a demographic profile, but it does show custody reasons and court abbreviations. Offense rows can include warrant arrest, failure to appear, court commitment, probation or parole issues, traffic offense, DUI Alcohol or Drugs, domestic violence offense text, DOC, DIST, MUNI, SUPR, and OTHR labels. The permanent-bed report also shows housing labels such as MAIN-ALT Alternative Sentencing, D1 MAX, D2 MED, D3 MIN, HOLD, IBLK, JBLK, and KBLK.
- Permanent bed
- A public roster label for assigned Mason County Jail housing or bed location.
- Detainer
- A hold or request from another authority, such as DOC, another county, federal custody, or immigration enforcement.
- Court commitment
- Custody ordered by a court, often after sentence or a specific court order.
- Classification
- The jail decision about custody level and housing after intake.
Mason County Jail Capacity
The Mason County Jail capacity record needs careful wording. WASPC reported 68 design capacity in 2020 and 2021, 68 updated design capacity in 2022 and 2023, and 93 facility beds in 2024. The research did not locate an official county construction source explaining a physical expansion tied to that change. For that reason, the most accurate phrase is that the reported WASPC capacity or bed field changed. It would overstate the source to say the county built 25 new beds.
By the same records, the jail was above 68 ADP from 2020 through 2023 and below the 93-bed figure in 2024. WASPC reported no Mason County in-custody deaths in 2024. No official Department of Justice investigation, consent decree, or major current Mason County Jail litigation was found in the research materials. The Sheriff's jail page says the facility is WASPC accredited, which is relevant to conditions and standards but does not replace the annual population data.
Note: Capacity data and roster data answer different questions, so a same-day roster count should not be treated as an annual trend.
Mason County Inmate Population Laws
Washington law creates the framework for public jail data, booking records, reporting, and records requests. The Mason County inmate population is visible first through Sheriff's Office jail reports, but additional records may require an identifiable public-records request. Court filings are routed through court and clerk channels, not through the Sheriff's records process. Records can also be withheld or redacted when a specific exemption, court rule, privacy rule, or active law-enforcement limit applies.
Key Statutes:
RCW 42.56.520 sets the five-business-day response rule for Washington public-records requests.
RCW 70.48.100 covers jail-register and jail-record information, including booking-photo language.
RCW 36.28A.040 directs WASPC to operate the statewide jail booking and reporting system for offender information and jail statistical data.
RCW 70.48.510 requires unexpected fatality review processes for jail deaths.
Mason County State Prison Population
Washington Corrections Center gives Mason County a state-prison role that many county jail searches miss. The Washington DOC facility page for WCC lists the prison in Shelton with medium, close, and maximum custody levels and 1,268 incarcerated individuals as the facility-page capacity. A 2025 DOC fact sheet lists WCC as a men's prison, the reception center for all male individuals entering DOC custody, and a facility four miles west of Shelton. The DOC prison facilities page reported a statewide prison population total of 14,137 as of December 31, 2025.
Mission Creek Corrections Center for Women in Belfair is former local corrections context, not an active facility page for this build. Current DOC facility navigation no longer lists it as an active prison, and 2025 DOC-linked materials describe closure or warm-closure status. Old listings may still mention Belfair, so Mason County lookup should rely on current DOC sources. Women in active state DOC custody are not searched through the Mason County Jail roster merely because Mission Creek once operated in the county.
Search Mason County Inmate Population
The official Mason County jail lookup path uses two PDFs, not an interactive roster database. The Current Inmate List by Permanent Bed shows permanent bed, booking number, name, and time incarcerated. The Current Inmate Offense List by Name shows booking number, name number, book date, release date or no release date, statute, offense, court, offense code, and class. Both reports are free and public. Use the browser PDF find tool to search by last name.
The Mason County Sheriff's Office jail page is the official county source for the jail overview, WASPC accreditation note, and report links.
The page points readers to county jail reports rather than a name-search database, so the PDF report names matter.
- Open the Sheriff's jail page or the direct current inmate PDF links.
- Use the permanent-bed report when the housing or bed label is needed.
- Use the offense-list report when statute, offense wording, court, or release-date text is needed.
- Search within the PDF by last name, then confirm the person with booking number and full name.
- If the person is not listed, check release, transfer to DOC, another county hold, federal custody, or immigration custody.
Mason County Jail Roster Lookup
The Mason County jail roster lookup is a report lookup. It does not have a last-name search box, filters, mugshot thumbnails, bond field, or profile page. The PDF viewer is the search tool. That makes the current inmate reports simple but limited. A reader can verify current custody and booking details, but bond, court date, arresting agency, full demographics, and booking photo were not shown in the official PDFs inspected on July 2, 2026.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Permanent Bed | PDF report column | n/a | Examples include MAIN-ALT, D1 MAX, D2 MED, D3 MIN, HOLD, IBLK, JBLK, and KBLK labels. |
| Booking # | PDF report column | n/a | Observed patterns include YY-NNNN and YY-SNNNN. |
| Name | PDF report column | n/a | Last name appears first, and long names may wrap. |
| Time Incarcerated | PDF report column | n/a | Time and date format appears as HH:MM:SS MM/DD/YY. |
| Statute / Offense | PDF offense rows | n/a | Shows RCW or statute reference and descriptive offense or hold text. |
| Court / Class | PDF offense rows | n/a | Observed court labels include MUNI, DIST, SUPR, DOC, and OTHR. |
Phone and in-person checks remain useful when the reports do not answer the question. Call the Mason County Sheriff's Office or jail through (360) 427-9670, and use ext. 313 for the Sheriff's Office public contact when a more specific line is not published. For records outside the public PDFs, use the county public-records portal or printable form.
Mason County Released Inmate Records
The Mason County PDF roster is built for current custody. A released person may drop from the public current reports, and a person sentenced to state prison may move to the DOC locator. Historical jail records, booking records, or booking photos that are not shown in the current PDFs should be requested through the Mason County public records page, its online portal, or the printable public-records request form. The request should identify the person, approximate booking date, booking number if known, and exact record type sought.
Mason County court records are separate. District Court records have their own request process, and Superior Court case documents are filed through the Clerk's Office. The formal case record may show filed charges, amendments, disposition, warrants, or sentencing information that the jail report does not show. The jail offense row helps identify the right court, but it is not the final court case history.
The county public-records page lists records routing and agency contacts for requests not already available online.
Use that channel for identifiable jail records that are not visible in the public current-inmate reports.
Mason County Inmate Record Fields
A Mason County inmate record in the public reports is a narrow custody record. The permanent-bed report is useful for confirming the public housing label and booking number. The offense-list report is better for court and charge clues. Neither report inspected on July 2, 2026 showed a mugshot, date of birth, height, weight, race, sex, bond amount, arresting agency, or next court date. That missing detail should be requested from the proper source rather than assumed.
| Field | What It Shows |
|---|---|
| Booking Number | Jail booking identifier tied to the custody event. |
| Name Number | Internal person identifier in the offense-list report. |
| Book Date | Date and time of booking in the offense report. |
| Release Date | No release date or a listed release date and time when shown. |
| Permanent Bed | Public housing or bed label, such as D1 MAX, D2 MED, HOLD, or alternative sentencing. |
| Statute and Offense | RCW or statute reference plus offense or hold wording. |
| Court and Class | Court abbreviation and offense class or status code. |
Mason County Jail vs Prison
County jail and state prison searches answer different custody questions. Mason County Jail handles local jail custody, including recent arrests, warrants, court commitments, short sentences, and local holds. Washington Corrections Center handles state DOC custody, including sentenced male prisoners and reception/classification. A person may pass through both systems during one criminal case, but each system keeps its own locator and records.
| Mason County Jail | Washington DOC / WCC | |
|---|---|---|
| Who is held | Pretrial detainees, warrant arrests, court commitments, short sentences, and local holds. | Sentenced state prisoners and male DOC reception/classification population. |
| Run by | Mason County Sheriff's Office. | Washington State Department of Corrections. |
| Where to look | County current inmate PDFs. | DOC incarcerated search and DOC facility pages. |
| Record style | Booking, bed, offense, court, class, and release-date rows. | DOC number, name, age, facility, and custody location. |
| Common mistake | Expecting a mugshot gallery or bond amount in the PDF. | Searching the county roster after state-prison transfer. |
Mason County Inmate Search Channels
All access channels documented in the research point to a fallback chain. Start with the Mason County current inmate PDFs for county jail custody. Use phone or in-person contact when the PDF is unclear. Use a public-records request for identifiable jail records that are not in the reports. Use Washington Courts Case Search for filed cases after charges move into court. Use the DOC locator after a person enters state-prison custody. Use VINELink for custody or release notices where available.
The Washington DOC incarcerated search is for sentenced state custody, including people at Washington Corrections Center. The Washington VINELink portal is for notification, not a full court-record substitute. The Federal Bureau of Prisons inmate locator covers federal sentenced inmates from 1982 to present. The ICE Online Detainee Locator System searches immigration detention by A-number and country or by biographical data. No active BOP or ICE detention facility was found in Mason County research.
Mason County Detention Facilities
Mason County has one active county jail facility page and one active state-prison facility page in this project. These facilities serve different parts of the inmate population and should not be searched with the same tool. The jail report covers local jail custody. The DOC locator covers sentenced state-prison custody and WCC reception/classification custody.
- Mason County Jail - Sheriff's Office county jail in Shelton for pretrial detainees, warrants, court commitments, short sentences, local holds, and alternative sentencing placements.
- Washington Corrections Center - Washington DOC state prison in Shelton for sentenced male prisoners and reception/classification of male DOC entrants.
Mason County Jail Custody Services
Lookup often leads to a practical need: visit, call, send money, or understand what the jail allows. Mason County Jail visitation is video-only through Inmate Sales. The jail changed from Securus Technologies to Inmate Sales on August 12, 2024, and the county warns that Securus funds do not transfer. Visitors must create or use an Inmate Sales account, be approved, and schedule at least 24 hours before the desired visit. Video visits are recorded and monitored, except attorney video visits are not recorded or monitored by jail staff.
| Service | Mason County detail |
|---|---|
| Visitation | Video visitation through Inmate Sales; account approval and advance scheduling required. |
| Calls | Inmates may make collect calls; no incoming calls or messages except verified life-or-death emergencies. |
| Commissary | Cash in person, money order or guaranteed funds by mail, cashier's check, or online through JailATM. |
| Medication | Prescription medication must be prescribed by a physician and sent by the pharmacy in bubble-pack form only. |
| Programs | Drug and alcohol classes, alternative sentencing, community inmate labor, and mental health services are named in the jail FAQ. |
Mason County Inmate Population FAQ
How big is the Mason County inmate population? WASPC reported 56.42 average daily population for the Mason County Sheriff's Office jail in 2024, with 93 facility beds and 1,122 admissions. The July 2, 2026 current jail reports showed 71 roster entries by booking count. WCC is separate state-prison custody and has its own DOC capacity figures.
How do I search the Mason County inmate population? For current county jail custody, search the Sheriff's current inmate PDFs with the PDF find tool. Use the permanent-bed report for housing labels and the offense-list report for statute, offense, court, class, and release-date fields. For state prison custody, use the Washington DOC incarcerated search.
Why is there no interactive Mason County jail roster? The official county source found in the research is a pair of public PDF reports, not a searchable vendor database. That is why last-name search is done inside the PDF viewer. The reports are public and free, but they show fewer fields than many profile-style roster systems.
Can I find Mason County jail mugshots online? The official current inmate PDFs inspected on July 2, 2026 did not show booking photos. Washington law may allow access to booking photos through records processes in some cases, but a Mason County booking photo should be requested as an identifiable jail record if it is not published in the roster.
What if a person is not listed in the Mason County jail reports? Check whether the person was released, transferred to Washington DOC custody, held in another county, held federally, or held under immigration authority. Use the court search, DOC locator, BOP locator, ICE ODLS, VINELink, phone contact, or a records request based on the custody type.
Are court charges the same as jail offense rows? No. A jail offense row can reflect booking, arrest, warrant, commitment, or hold language. Formal court charges are filed and changed through the court process. Use Washington Courts Case Search and Mason County court records channels for the court case after booking.