Search the Benton County Inmate Population

Benton County Inmate Population Overview

The Benton County inmate population begins at the Benton County Jail, the only jail in Benton County. The Sheriff's Office states that arrests from Corvallis, Philomath, Albany, Oregon State University Police, Oregon State Police, and Benton County deputies are brought to this downtown jail. The local jail count is not the same as the full public safety picture. Benton County also rents beds in Polk County and Clatsop County, and sentenced people may later move into the Oregon Department of Corrections.

That makes the Benton County inmate population a custody-stage question. A person just booked after arrest is usually in the county jail roster. A person serving a local sentence may be in Benton County Jail or a contract bed. A person sentenced to state prison should be checked through Oregon Offender Search or VISOR. Federal and immigration cases use separate federal tools. The most accurate search follows the case from arrest, to booking, to court, to release or transfer.

Benton County Inmate Population Statistics

The clearest official numbers come from Benton County Sheriff's Office jail pages and the 2024 BCSO Annual Report. The jail was built in 1976, is about 8,000 square feet, and was first designed for 27 adults in custody. Remodeling raised the physical bed count to 40, but the Sheriff explains that separation by sex, risk, offense type, and medical or behavioral health need makes the working capacity lower.

The Sheriff's jail facts page shows why a simple bed count can mislead readers.

The screenshot is useful because it ties the Benton County inmate population to the county's own capacity explanation, not to a third-party estimate.

Benton County Inmate Population Trends

The local trend is best read as pressure on a small jail, not a single rising or falling head count. A 2019 criminal justice assessment said Benton County's total average daily population had been stable in the 60 to 67 range over the prior five years, with slightly more than half housed outside the county. More recent Sheriff's Office numbers show fewer than 1,500 annual bookings in both 2023 and 2024, but steady use of contract beds, transports, matrix releases, and temporary facility closures.

The bed-rental program is part of that trend. Benton County reports that the program is funded through a local option levy, costs nearly $1 million per year, and required hundreds of transports in 2023 and 2024.

Benton County Jail Capacity

Benton County inmate population pressure comes from classification. The jail may have a physical bed open while still lacking an appropriate bed for the next person brought in. Adults in custody must be separated by sex, offense type, risk, medical need, and mental or behavioral health concerns. The county says this is why a 40-bed jail can be at capacity with 28 to 34 adults in custody.

When capacity tightens, Benton uses three public strategies: rented beds, matrix or forced releases, and short jail closures to new arrestees when an appropriate cell is not available. The 2024 report counted 368 SB 48 matrix releases and 75 forced releases. The same report counted 10 facility closures. Those figures make the Benton County inmate population different from larger county jails where the daily count and the bed count line up more closely.

The official jail bed rentals page describes the contract-bed program with Polk and Clatsop counties.

The contract-bed screenshot supports the facility map because it explains why a Benton County adult in custody may be physically outside Benton County.

Benton County Inmate Population Makeup

The most detailed demographic source located was the 2019 Benton County Criminal Justice Assessment. It is useful historical data, not a current 2026 dashboard. That assessment reported a population that was 85 percent male, had an average age of 31, and included 30 percent age 25 or younger. It also reported that 68 percent were pretrial, 79 percent were white, and African-Americans were 8 percent of the jail population while about 1 percent of county residents.

Current Benton County pages inspected for this build did not publish an updated race, sex, charge-level, or pretrial dashboard. The safer reading is that the county's public current data is strong on booking totals, capacity, forced release, transport, and contract-bed operations, but thinner on current demographic detail. The roster still shows age, sex, race, height, weight, hair, and eyes for each public entry.

Laws for Benton County Jail Records

Oregon law gives the public a right to inspect many public records, but jail data is not unlimited. Benton County publishes the Adult in Custody roster and release report while withholding booking photos from the website under Oregon booking-photo law. Jail operations also sit under state standards for local correctional facilities and Oregon jail inspection rules.

These laws explain why a Benton County jail roster can show a name, booking number, arresting agency, location, and charges while omitting a public mugshot, date of birth, home address, and some incident details.

Search Benton County Inmates

The official Benton County jail roster hub links to the Adult in Custody Report and the Adult in Custody Release Report. The current report covers adults in BCSO custody, including people housed in the Benton County Jail and people in Benton contract locations. The Sheriff's Office says the current report updates about every four hours. The release report lists adults released in the prior 31 days and updates once per day.

1. Open the Benton jail roster hub and choose the Adult in Custody Report for current custody.
2. Enter all or part of the person's name. Leaving the field blank returns all visible records.
3. Sort by booking date, person's name, or housing location, then choose ascending or descending order.
4. Read the full entry for booking number, file number, arrest date, arresting agency, location, demographics, bail label, and charges.
5. If the person is missing, check the release report, call the jail, search Oregon DOC or VISOR, and then use BOP or ICE if the case is federal or immigration-related.

The Adult in Custody roster is the core Benton County inmate population search source.

The roster screenshot shows the search controls and full report style that readers should expect before they use state or federal fallback tools.

Benton County Roster Search Fields

The Benton County roster is simpler than many vendor systems. It does not require a login, payment, or exact name match. It lets a reader browse all records, search by a name fragment, and sort the visible report.

Benton County Inmate Record Fields

A Benton County inmate record is a roster entry, not a full police report or a full court case. The entry may show arrest and charge information before the prosecutor files formal court charges. It also may show release data for older release-report entries.

Benton County Released Inmate Records

The released Adult in Custody report matters because a person can leave the current roster while the court case remains active. Benton County says the release report lists people released from BCSO custody during the 31 days before the report date. It is reverse chronological and updates once daily. Release reasons can include court release, own recognizance, cash bail, security bail, matrix release, transfer, state transfer, extradition, sentence served, or dismissal.

For older jail records, police reports, or official booking records not visible on the roster, the Sheriff's services page and the Corvallis Police Records Unit direct users to the shared records request system. The records unit says to allow at least five business days and expect fees. County general records rules list $0.25 per copy with a $1 minimum for copies and additional staff time costs for longer requests.

Benton County Custody Lookup Paths

A failed Benton County roster search does not always mean the person is free or that the record does not exist. It may mean the person was released, moved to a contract facility, sentenced to Oregon DOC custody, held in federal custody, or never booked in Benton County. The right search depends on who has custody.

VISOR is also a notification tool. The Oregon VISOR search page supports name, partial name, SID, and county ID searches.

VISOR helps bridge the gap between local jail custody, state custody, and supervision status after a Benton County case leaves the jail roster.

Benton County Detention Facilities

The Benton County facility map has one local jail and two contract-bed partners. The primary jail comes first because all county arrests route there before any transfer decision. The contract facilities are important because the Benton roster may still be the first search path even when the person is physically housed elsewhere.

• Benton County Jail holds adults arrested in Benton County, pretrial adults, local sentenced adults, and people awaiting transfer.
• Polk County Jail is Benton County's contract partner for pretrial adults in custody when rented beds are used.
• Clatsop County Jail is Benton County's contract partner for sentenced adults in custody when rented beds are used.

Benton County Custody Terms

The roster and release report use shorthand that can change how a reader interprets the Benton County inmate population. A few definitions reduce the risk of reading a jail entry as a final court result.

Adult in Custody

Oregon jail and DOC term for a person held in custody.

Classification

The jail housing decision based on risk, sex, offense type, and health or behavioral needs.

Matrix release

A capacity-based release selected under a scoring process when the jail needs an appropriate bed.

State transfer

Movement from local custody to Oregon state prison after sentence or authority changes.

Detainer or hold

A custody hold from another court, agency, or legal authority.

Note: A booking charge is an arrest-stage record; the court case may later show amended, reduced, dismissed, or added charges.

Benton County Inmate Population FAQ

How large is the Benton County inmate population? The local jail has 40 physical beds but generally reaches practical capacity at 28 to 34 adults in custody. Historical assessment data also counted people housed outside Benton County, so the total custody footprint can be larger than the downtown jail count.

How often does the Benton jail roster update? The Sheriff's roster hub says the Adult in Custody Report updates about every four hours. The release report updates once per day and covers the prior 31 days.

Why would a Benton County inmate be in Polk or Clatsop County? Benton rents beds because its jail is small. Polk is used for pretrial Benton adults in custody, while Clatsop is used for sentenced Benton adults in custody.

Does Benton County publish jail mugshots? No. The roster says booking photos are no longer provided on the website to comply with HB 3273 and Oregon booking-photo law.

Where are sentenced state prisoners listed? Sentenced Oregon prison custody is searched through Oregon Offender Search or VISOR, not the Benton County jail roster after transfer.

Is there a Benton County Oregon sheriff app for inmate lookup? No official Benton County, Oregon sheriff or police app with a roster or warrant lookup was confirmed in the research. False positives came from other Benton Counties.