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 24, 2026 and October 2, 2026.
Diamondhead, Mississippi, in Hancock County, has about 9,400 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Diamondhead is held at the county jail, run by the Hancock 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: Diamondhead public records, Hancock County inmate search, Diamondhead arrest records, Diamondhead warrants, Diamondhead criminal records, Diamondhead court records, Mississippi arrest records and Mississippi inmate search.
Finding Someone in Custody in Diamondhead
A person kept in custody after an arrest in Diamondhead is held at the county jail, run by the Hancock County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Hancock County Sheriff's Office at hancockso.com/InmateRoster/hancock_inmatelist.html (page title: Hancock County Sheriff's Office), phone 228-466-6900, 8450 Highway 90, Bay St. Louis, MS 39520, which answered when SearchSystems opened it on September 24, 2026.
Someone booked recently shows on that page; someone cited and released at the scene, or held a few hours at a city station, does not.
The Hancock County Jail by the Numbers
On an average day in 2021 the jail held about 170 people, down from about 200 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 225 beds, and it ran at 88 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Hancock County has about 46,000 residents (2024 Census Bureau estimate), so the jail holds about 36 people for every 10,000 residents.
Who Books People Into the Hancock County Jail
The Hancock County Sheriff's Office and the agencies that report for Bay St. Louis and Waveland make the arrests that end in a booking in and around Diamondhead.
The largest arrest counts reported to the FBI were the Hancock County Sheriff's Office's 734 for 2025, Waveland's 558 for 2025 and Bay St. Louis's 301 for 2025.
Together, the three agencies in Hancock County with all twelve months of 2025 on file reported 1,593 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 Diamondhead arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Mississippi Department of Corrections lists its inmates at mdoc.ms.gov/inmate_search.
Frequently Asked Questions
How do I find an inmate in Diamondhead?
Look on the custody page of the Hancock County Sheriff's Office at hancockso.com, or call 228-466-6900. It covers people booked into the county jail.
How many people are in the Hancock County jail?
About 170 on an average day in 2021, the latest year in the Vera Institute's jail data, against a rated capacity of 225 beds.
What is the phone number for the Hancock County jail?
228-466-6900, the number on the page of the Hancock County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Hancock 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 Diamondhead website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.