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 9, 2026.
Cook County, Georgia, has about 18,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Cook County is held at the county jail, run by the Cook 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: Cook County public records, Cook County arrest records, Cook County warrants, Cook County criminal records, Cook County court records, Georgia arrest records and Georgia inmate search.
Finding Someone in Custody in Cook County
A person kept in custody after an arrest in Cook County is held at the county jail, run by the Cook County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Cook County Sheriff's Office at cookcountyga.us/departments-and-offices/sheriffs-office (page title: Sheriff's Office | Cook County Georgia), which answered when SearchSystems opened it on October 9, 2026.
That page is the office's jail information page rather than a roster.
The Cook County Jail by the Numbers
So far in 2026 the jail has held about 100 people on an average day, up from about 93 in 2019. Its rated capacity is 108 beds, and it is running at 93 percent of it. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Cook County has about 18,000 residents (2024 Census Bureau estimate), so the jail holds about 56 people for every 10,000 residents.
Who Books People Into the Cook County Jail
The Cook County Sheriff's Office and the agencies that report for Adel, Sparks and Lenox make the arrests that end in a booking in Cook County.
The largest arrest counts reported to the FBI were Lenox's 1,152 for 2025 and the Cook County Sheriff's Office's 549 for 2025.
Together, the two agencies in Cook County with all twelve months of 2025 on file reported 1,701 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 Cook County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Georgia Department of Corrections lists its inmates at gdc.georgia.gov/offender-info/find-offender.
Frequently Asked Questions
How do I find an inmate in Cook County?
Ask the Cook County Sheriff's Office; its jail page SearchSystems verified is at cookcountyga.us.
How many people are in the Cook County jail?
About 100 on an average day so far in 2026, against a rated capacity of 108 beds.
Where do people sentenced to prison in Cook County go?
To a facility of the Georgia Department of Corrections; its inmate locator is at gdc.georgia.gov/offender-info/find-offender.
Is this the official Cook 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.