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.
Centennial, Colorado, in Arapahoe County, has about 109,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Centennial is held at the county jail, run by the Arapahoe 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: Centennial public records, Arapahoe County inmate search, Centennial arrest records, Centennial warrants, Centennial property records, Colorado arrest records and Colorado inmate search.
Finding Someone in Custody in Centennial
A person kept in custody after an arrest in Centennial is held at the county jail, run by the Arapahoe County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Arapahoe County Sheriff's Office at arapahoeco.gov/your_county/county_departments/sheriffs_office/burea... (page title: Detentions Service Bureau), phone 720-874-3500, 7375 S. Potomac St. Centennial, CO 80112, which answered when SearchSystems opened it on September 23, 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 720-874-3500.
The Arapahoe County Jail by the Numbers
On an average day in 2025 the jail held about 890 people, down from about 1,110 in 2019. Its rated capacity in 2025 was 1,174 beds, and it ran at 76 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Arapahoe County has about 667,000 residents (2024 Census Bureau estimate), so the jail holds about 13 people for every 10,000 residents.
Who Books People Into the Arapahoe County Jail
The Arapahoe County Sheriff's Office and the agency that reports for Centennial (filed by the FBI as Centennial Police Department) make the arrests that end in a booking in and around Centennial.
The FBI's agency list also places one more agency in Arapahoe County: Arapahoe Community College (campus police).
The largest arrest counts reported to the FBI were Aurora's 13,080 for 2025, Englewood's 2,121 for 2025 and the Arapahoe County Sheriff's Office's 2,112 for 2025.
Together, the ten agencies in Arapahoe County with all twelve months of 2025 on file reported 23,755 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 Centennial arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Colorado Department of Corrections lists its inmates at cdoc.colorado.gov.
Frequently Asked Questions
How do I find an inmate in Centennial?
Ask the Arapahoe County Sheriff's Office at 720-874-3500; its jail page SearchSystems verified is at arapahoeco.gov.
How many people are in the Arapahoe County jail?
About 890 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 1,174 beds.
What is the phone number for the Arapahoe County jail?
720-874-3500, the number on the page of the Arapahoe County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Arapahoe County go?
To a facility of the Colorado Department of Corrections; its inmate locator is at cdoc.colorado.gov.
Is this the official Centennial 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.