Reviewed and updated October 11, 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 24, 2026 and October 11, 2026.
Lamar County, Mississippi, has about 67,000 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, Mississippi arrest records and Mississippi inmate search.
Finding Someone in Custody in Lamar County
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, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Lamar County Sheriff's Office at lamarcountyms.gov/ms/so (page title: Sheriff’s Office | Lamar County Mississippi), phone (601) 794-1088, which answered when SearchSystems opened it on October 11, 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 (601) 794-1088.
The Lamar County Jail by the Numbers
On an average day in 2021 the jail held about 86 people, down from about 120 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 164 beds, and it ran at 73 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Lamar County has about 67,000 residents (2024 Census Bureau estimate), so the jail holds about 13 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 Sumrall, Purvis and Lumberton make the arrests that end in a booking in Lamar County.
The Hattiesburg Police Department is listed by the FBI across two counties including Lamar County, so its arrests are not broken out for Lamar County here.
The largest arrest counts reported to the FBI were the Lamar County Sheriff's Office's 470 for 2025, Lumberton's 45 for 2025 and Purvis's 38 for 2024.
Together, the three agencies in Lamar County with all twelve months of 2025 on file reported 518 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 Mississippi Department of Corrections, whose inmate locator is at mdoc.ms.gov/inmate_search.
Frequently Asked Questions
How do I find an inmate in Lamar County?
Ask the Lamar County Sheriff's Office at (601) 794-1088; its jail page SearchSystems verified is at lamarcountyms.gov/ms/so.
How many people are in the Lamar County jail?
About 86 on an average day in 2021, the latest year in the Vera Institute's jail data, against a rated capacity of 164 beds.
What is the phone number for the Lamar County jail?
(601) 794-1088, 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 Mississippi Department of Corrections; its inmate locator is at mdoc.ms.gov/inmate_search.
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.