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 4, 2026.
Lamar County, Georgia, has about 21,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Lamar County is held at the county jail, run by the Lamar 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: Lamar County public records, Lamar County arrest records, Lamar County warrants, Lamar County criminal records, Lamar County court records, Georgia arrest records and Georgia inmate search.
Finding Someone in Custody in Lamar County
The county jail, run by the Lamar County Sheriff's Office, holds everyone kept in custody after an arrest in Lamar County, from every agency.
SearchSystems opened and checked the jail page of the Lamar County Sheriff's Office at lamarcountysheriff.com, phone 770-358-5159, 121 Roberta Drive Barnesville, GA 30204, which answered when SearchSystems opened it on October 4, 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 770-358-5159.
The Lamar County Jail by the Numbers
So far in 2026 the jail has held about 73 people on an average day, up from about 51 in 2019. Its rated capacity is 155 beds, and it is running at 47 percent of it. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Lamar County has about 21,000 residents (2024 Census Bureau estimate), so the jail holds about 35 people for every 10,000 residents.
Who Books People Into the Lamar County Jail
The Lamar County Sheriff's Office and the agencies that report for Barnesville and Milner make the arrests that end in a booking in Lamar County.
The FBI's agency list also places one more agency in Lamar County: Gordon State College (campus police).
The largest arrest counts reported to the FBI were the Lamar County Sheriff's Office's 177 for 2025, Milner's 35 for 2025 and Barnesville's 29 for 2022.
Together, the two agencies in Lamar County with all twelve months of 2025 on file reported 212 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 Lamar 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 Lamar County serves the sentence in a facility of the Georgia Department of Corrections, whose inmate locator is at gdc.georgia.gov/offender-info/find-offender.
Frequently Asked Questions
How do I find an inmate in Lamar County?
Ask the Lamar County Sheriff's Office at 770-358-5159; its jail page SearchSystems verified is at lamarcountysheriff.com.
How many people are in the Lamar County jail?
About 73 on an average day so far in 2026, against a rated capacity of 155 beds.
What is the phone number for the Lamar County jail?
770-358-5159, the number on the page of the Lamar County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Lamar 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 Lamar 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.