Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. 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 October 1, 2026.
Castro County, Texas, has about 7,400 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Castro County is held at the county jail, run by the Castro County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Castro County public records, Castro County arrest records, Castro County warrants, Castro County criminal records, Castro County court records, Texas arrest records and Texas inmate search.
Finding Someone in Custody in Castro County
A person kept in custody after an arrest in Castro County is held at the county jail, run by the Castro County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Castro County Sheriff's Office at co.castro.tx.us/page/castro.Sheriff (page title: Castro County, Texas), phone 806-647-3311, which answered when SearchSystems opened it on September 30, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at 806-647-3311.
The Castro County Jail by the Numbers
So far in 2026 the jail has held about 25 people on an average day, down from about 29 in 2019. Its rated capacity is 67 beds, and it is running at 37 percent of it. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Castro County has about 7,400 residents (2024 Census Bureau estimate), so the jail holds about 34 people for every 10,000 residents.
Who Books People Into the Castro County Jail
The Castro County Sheriff's Office and the agency that reports for Dimmitt make the arrests that end in a booking in Castro County.
The FBI's agency list also places one more agency in Castro County: the Dimmitt Independent School District (other agency).
The largest arrest counts reported to the FBI were Dimmitt's 66 for 2024 and the Castro County Sheriff's Office's 51 for 2025.
Together, the two agencies in Castro County with all twelve months of 2024 on file reported 113 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Castro County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Castro County serves the sentence in a facility of the Texas Department of Criminal Justice, whose inmate locator is at inmate.tdcj.texas.gov/InmateSearch/start.
Frequently Asked Questions
How do I find an inmate in Castro County?
Ask the Castro County Sheriff's Office at 806-647-3311; its jail page SearchSystems verified is at co.castro.tx.us/page/castro.Sheriff.
How many people are in the Castro County jail?
About 25 on an average day so far in 2026, against a rated capacity of 67 beds.
What is the phone number for the Castro County jail?
806-647-3311, the number on the page of the Castro County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Castro County go?
To a facility of the Texas Department of Criminal Justice; its inmate locator is at inmate.tdcj.texas.gov/InmateSearch/start.
Is this the official Castro County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.