Canyon County Jail Annex Inmate Lookup

Canyon County Jail Annex Overview

The Canyon County Jail Annex is operated by the Canyon County Sheriff's Office as part of the adult jail system in Caldwell. County research does not identify a separate public street address for the Annex; it is described as part of the jail facilities near the courthouse and 12th Avenue area. The Annex houses adults assigned by jail classification, not a separately searchable population.

The county's current jail facilities page says the Annex opened in 1948 and part of it remains in use. It is an older two-floor housing area with 34 beds. The county notes that its design is outdated and requires significant staffing resources because two deputies may be needed to monitor up to 34 inmates across two separate floors.

The Annex appears on Canyon County's current jail facilities page, where it is listed with Dale Haile and Tent Facility Pod 5.

The county's own layout is important for families because a person may be in Canyon County jail custody even when the online record does not publicly identify the Annex as the housing location.

The practical takeaway is that the Annex should be read as a housing component inside the Canyon County jail system. A caller asking about release, court transport, medical concerns, or visitation should use the detention center numbers, not look for a separate Annex records office. That also keeps the public record path aligned with the roster notice, the inmate status line, and iCourt for filed court charges.

Canyon County Jail Annex Capacity and Population

The Canyon County current jail facilities page, accessed June 8, 2026, lists the Annex at 34 beds. No separate daily Annex population figure was located in the official research. Countywide jail statistics from an indexed official summary for October 17, 2025 listed 474 people in jail against a 523 in-jail maximum capacity, with 485 counted in the grand total when outside categories were included.

Because the Annex is a component of the county jail rather than a standalone jail, public users should not expect a separate Annex population dashboard, booking desk, or inmate roster.

The Annex bed count also helps explain why Canyon County's total capacity discussion can be confusing. Dale Haile, the Annex, and Pod 5 all contribute to adult jail capacity, but each facility has different supervision, classification, and building limits. The 34 Annex beds are small in number compared with Dale Haile, yet the county specifically notes the staffing burden created by the older design.

How to Look Up an Inmate at Canyon County Jail Annex

Use the Canyon County Jail Roster for adults assigned to the Annex. The Current Arrests page can help with recent bookings, while iCourt is the place to compare booking-charge language to charges filed by the Prosecuting Attorney's Office. The county roster covers county jail custody, not IDOC prison, federal custody, immigration detention, or juvenile detention.

1. Search the Canyon County Jail Roster by name or last-name initial.
2. Review Current Arrests if the person was booked recently.
3. Call 208-454-7541 if custody status or housing needs direct confirmation.
4. Use Idaho iCourt for filed charges, hearing dates, and case events after arrest.

Canyon County Jail Annex Address and Contact

Use the main detention contact numbers for Annex questions. The official research did not locate a separate public Annex counter or a separate Annex mailing address for friends and family. Standard jail mail and legal mail should follow Canyon County Jail rules unless staff gives a specific instruction.

Visiting Someone at Canyon County Jail Annex

Annex visitation follows Canyon County Jail's video-only social visitation system. Visits are handled through CTel/InmateSales, must be scheduled at least two hours in advance, and are subject to monitoring and recording. The county gives each inmate 60 free video minutes per week, with remote video available at $0.20 per minute. Inmates cannot visit during lockdown or when privileges are restricted.

Mail, Phone, and Money at Canyon County Jail Annex

Standard non-legal jail mail is sent to the county's scanning address in Highland Heights, Kentucky, then delivered electronically. Mail must include the inmate's full name and ID, and it must meet scanner and content rules. Legal mail goes to the Canyon County Jail address at 219 N. 12th Ave. Commissary is supplied by Summit Food Services, and deposits are handled by JailATM or the lobby kiosk.

Booking and Intake at Canyon County Jail Annex

People are not booked through a separate public Annex process. Booking and classification are part of the Canyon County Jail system. Classification decisions can place an inmate in different housing based on security, conduct, protective needs, work-release status, or other operational factors. If a roster record and a court record appear to differ, the roster is a custody snapshot while iCourt tracks filed court charges and case events.

That distinction is especially useful after a new arrest. Current Arrests may show the arresting agency and charge rows soon after booking, while the Prosecuting Attorney's Office may later file different or amended charges in court. The Annex does not change that records sequence. Custody starts with the jail roster and inmate status line; the legal case record continues through iCourt and the clerk.

About Canyon County Jail Annex

The Annex gives Canyon County's jail system one of its most local details: an older 1948 facility still partly in service beside newer jail infrastructure. County materials use the Annex to explain why staffing and classification are not just capacity problems. The building's age, two-floor layout, and small bed count make it a different operational challenge from Dale Haile and Pod 5, even though the public lookup path is the same jail roster.

The Annex also fits Canyon County's broader facility-planning story. Official county materials discuss overcrowding, temporary female housing, Pod 6 concerns, and long-term planning for a permanent women's facility on Pond Lane. The Annex is not that future project, but its continued use shows why older infrastructure remains part of day-to-day jail operations while the county evaluates larger capacity and safety decisions.