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 on September 23, 2026.
Douglas County, Colorado, has about 394,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Douglas County Sheriff's Office and three city agencies. An arrest leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the District Attorney files charges, a case in the Douglas County District Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts each agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies, cities and common questions.
Related guides: Douglas County public records, Colorado arrest records, Colorado inmate search and Colorado criminal records.
Who Makes Arrests in Douglas County
The Douglas County Sheriff's Office is the county agency that reports arrests to the FBI for Douglas County. It reported 2,354 arrests for 2025.
Arrests inside three of the county's cities are reported to the FBI by an agency of the city's own, listed here with the Census population and what each reported:
- Castle Rock, 83,213 residents: 729 arrests reported for 2025.
- Parker, 65,473 residents: 710 arrests reported for 2025.
- Lone Tree, 14,061 residents: 1,722 arrests reported for 2025.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
The Aurora Police Department and the Littleton Police Department are each listed by the FBI across several counties including Douglas County, so their arrests are not broken out for Douglas County here.
How Many Arrests Each Agency Reports in Douglas County
Each agency reports its arrests to the FBI by month, and the FBI publishes them on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Douglas County Sheriff's Office: 2,354 for 2025, 2,160 for 2024, 2,224 for 2023, 1,653 for 2022, 2,128 for 2021 and 2,337 for 2020.
- Lone Tree: 1,722 for 2025, 1,807 for 2024, 1,753 for 2023, 1,653 for 2022, 1,135 for 2021 and 996 for 2020.
- Castle Rock: 729 for 2025, 1,277 for 2024, 1,250 for 2023, 1,329 for 2022, 1,230 for 2021 and 1,044 for 2020.
- Parker: 710 for 2025, 690 for 2024, 707 for 2023, 612 for 2022, 622 for 2021 and 604 for 2020.
Together, the four agencies with all twelve months of 2025 on file reported 5,515 arrests that year. The three of them with both 2025 and 2024 complete reported 4,786 in 2025 against 4,657 in 2024, up 2.8 percent.
Through July 2026, the three agencies with every month so far on file reported 2,361 arrests, against 2,867 in the same months of 2025.
Booking: Where People Arrested in Douglas County Are Held
A person kept in custody after an arrest in Douglas County is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
On an average day in 2025 the jail held about 370 people, up from about 330 in 2019. Its rated capacity in 2025 was 472 beds, and it ran at 77 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Douglas County Sheriff's Office at dcsheriff.net/inmates (page title: Inmates | Douglas County Sheriff's Office | Castle Rock Colorado), which answered when SearchSystems opened it on September 23, 2026.
A person sentenced to prison serves the sentence in a facility of the Colorado Department of Corrections, whose inmate locator is at cdoc.colorado.gov.
How to Find Out About an Arrest in Douglas County
For Douglas County the place to look is the case index of the Douglas County District Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at coloradojudicial.gov/courts/trial-courts/douglas-county, phone 720-437-6114).
Colorado is one of the states that lets anyone look up another person's statewide criminal history: the state runs an online name-based criminal history check open to the public, through the Colorado Bureau of Investigation. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Douglas County
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Colorado Open Records Act the agency must answer within 3 working days, extendable to 7 when there are extenuating circumstances, and it may charge research and retrieval time after the first hour, plus copying.
- An arrest by the Douglas County Sheriff's Office: ask its records unit.
- An arrest in Castle Rock, Parker or Lone Tree: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
- The court file of a case that was filed: the Douglas County District Court, through the court records page at coloradojudicial.gov, phone 720-437-6114.
- Any county record that is not posted: the county records request page SearchSystems verified is at douglasco.gov (page title: Colorado Open Records Act (CORA) | Douglas County).
- Your own statewide record: a name-based or fingerprint-based request to the Colorado Bureau of Investigation.
Cities in Douglas County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for three of the five cities in Douglas County: Castle Rock, Parker and Lone Tree. Castle Pines and Larkspur have no separate reporting agency in the FBI's list.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Douglas County District Court.
SearchSystems has a guide to the offices of these cities in Douglas County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:
- Castle Rock (83,213)
- Castle Pines (15,162)
Frequently Asked Questions
How many arrests are made in Douglas County each year?
The Douglas County Sheriff's Office reported 2,354 arrests to the FBI for 2025, and the four agencies with every month of 2025 on file reported 5,515 between them.
How do I find out if someone is in jail in Douglas County?
Ask the Douglas County Sheriff's Office; its jail page SearchSystems verified is at dcsheriff.net/inmates.
Where are people arrested in Douglas County booked?
Those kept in custody go to the county jail, run by the Douglas County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Douglas County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Colorado Bureau of Investigation: the state runs an online name-based criminal history check open to the public. The arrest report itself is released by the agency that made the arrest, under the Colorado Open Records Act.
How do I get a copy of an arrest report in Douglas County?
From the agency that made the arrest: the Douglas County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Colorado Open Records Act the answer is due within 3 working days, extendable to 7 when there are extenuating circumstances; the county records request page SearchSystems verified is at douglasco.gov.
Is this the official Douglas 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.