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 September 26, 2026.
Gardiner, Maine, in Kennebec County, has about 6,200 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Gardiner is held at the county jail, run by the Kennebec 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: Gardiner public records, Kennebec County inmate search, Gardiner arrest records, Gardiner warrants, Gardiner criminal records, Gardiner court records, Maine arrest records and Maine inmate search.
Finding Someone in Custody in Gardiner
The county jail, run by the Kennebec County Sheriff's Office, holds everyone kept in custody after an arrest in Gardiner, from every agency.
SearchSystems opened and checked the custody page of the Kennebec County Sheriff's Office at kennebec.gov/sheriff/corrections/inmates-current (page title: Current Inmates | Kennebec County Sheriff's Office), phone (207) 623-2270, 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 Kennebec County Jail by the Numbers
On an average day in 2023 the jail held about 150 people, down from about 150 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 167 beds, and it ran at 89 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Kennebec County has about 128,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the Kennebec County Jail
The Kennebec County Sheriff's Office and the agency that reports for Gardiner (filed by the FBI as Gardiner Police Department) make the arrests that end in a booking in and around Gardiner.
The FBI's agency list also places one more agency in Kennebec County: the Bureau of Capitol Police (state agency).
The largest arrest counts reported to the FBI were Waterville's 1,013 for 2025, Augusta's 842 for 2025 and the Kennebec County Sheriff's Office's 518 for 2025.
Together, the nine agencies in Kennebec County with all twelve months of 2025 on file reported 2,995 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 Gardiner 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 Kennebec County serves the sentence in a facility of the Maine Department of Corrections, whose inmate locator is at apps1.web.maine.gov/online/correctionssearch.
Frequently Asked Questions
How do I find an inmate in Gardiner?
Look on the custody page of the Kennebec County Sheriff's Office at kennebec.gov, or call (207) 623-2270. It covers people booked into the county jail.
How many people are in the Kennebec County jail?
About 150 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 167 beds.
What is the phone number for the Kennebec County jail?
(207) 623-2270, the number on the page of the Kennebec County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Kennebec County go?
To a facility of the Maine Department of Corrections; its inmate locator is at apps1.web.maine.gov/online/correctionssearch.
Is this the official Gardiner 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.