Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2025. 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 September 25, 2026.
Grain Valley, Missouri, in Jackson County, has about 17,000 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the Prosecuting Attorney files charges, a case in the Jackson County Circuit Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Grain Valley public records, Jackson County arrest records, Missouri arrest records and Missouri inmate search.
Who Makes Arrests in Grain Valley
The FBI lists Grain Valley with an arrest reporting agency of its own, filed as Grain Valley Police Department. It reported 155 arrests for 2025. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the Jackson County Sheriff's Office is the county agency. It reported 825 arrests for 2025.
The FBI's agency list also places these agencies in Jackson County: the Metropolitan Community College and the University of Missouri at Kansas City (campus police); Jackson County Park Rangers, Jackson County Drug Task Force and Blue Spring Public Schools (other).
How Many Arrests Grain Valley Reports
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.
- Grain Valley: 155 for 2025, 233 for 2024, 270 for 2023, 214 for 2022, 208 for 2021 and 196 for 2020.
Grain Valley's 155 arrests in 2025 were down 33 percent from 233 in 2024.
Through July 2026, Grain Valley reported 133 arrests, against 70 in the same months of 2025.
Across Jackson County, the 14 agencies with all twelve months of 2025 on file reported 19,456 arrests between them.
Booking: Where People Arrested in Grain Valley Are Held
A person kept in custody after an arrest in Grain Valley 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 2024 the jail held about 720 people, down from about 830 in 2019. Its rated capacity in 2022, the last year with a capacity figure, was 800 beds, and it ran at 95 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the custody page of the Jackson County Sheriff's Office at jacksoncountyso.com/inmate-search (page title: Inmate Search | Jackson County Sheriff's Office), phone 877-654-8463, which answered when SearchSystems opened it on September 23, 2026.
That page is the place to look for someone who was booked recently; a person cited and released at the scene, or held only a few hours by a city department, will not be on it.
A sentence of more than a year is served in state prison; the Missouri Department of Corrections lists its inmates at web.mo.gov/doc/offSearchWeb.
How to Find Out About an Arrest in Grain Valley
An arrest in Grain Valley can be traced in three places, depending on where the case stands: the custody page of the Jackson County Sheriff's Office described above, for anyone booked into the county jail; the case index of the Jackson County Circuit Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at 16thcircuit.org/court-records-resources); the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at jacksongov.org/Government/Elected-Officials/Jackson-County-Prosecutor, phone (816) 881-3555).
Statewide, Case.net is the Missouri courts' free statewide case search.
Missouri is one of the states that lets anyone look up another person's statewide criminal history: the open record search on the MACHS site lets anyone check convictions by name, through the Missouri State Highway Patrol Criminal Justice Information Services Division. 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 Grain Valley
The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. Under the Missouri Sunshine Law the agency must answer within 3 business days, and it may charge research time and copying.
- An arrest by the Grain Valley police: the police department's page SearchSystems verified at cityofgrainvalley.org/police/crime_prevention_programs (page title: Crime Prevention & Programs | City of Grain Valley, Missouri), phone (816) 847-6250, 719 R.D. Mize Road, Grain Valley, MO 64029, which answered when SearchSystems opened it on September 25, 2026.
- An arrest by the Jackson County Sheriff's Office: ask its records unit, reached through the office at 877-654-8463.
- A defendant who has been charged gets the report through the case: the Prosecuting Attorney, (816) 881-3555, handles discovery for pending cases.
- The court file of a case that was filed: the Jackson County Circuit Court, through the court records page at 16thcircuit.org/court-records-resources.
- Your own statewide record: the same request described above, for your own name.
The Jackson County guide covers every agency in the county: Jackson County arrest records.
Frequently Asked Questions
How many arrests are made in Grain Valley each year?
Grain Valley reported 155 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Grain Valley?
Look on the custody page of the Jackson County Sheriff's Office at jacksoncountyso.com/inmate-search, or call 877-654-8463. It covers people booked into the county jail.
Where are people arrested in Grain Valley booked?
Those kept in custody go to the county jail, run by the Jackson County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Grain Valley?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Missouri State Highway Patrol Criminal Justice Information Services Division: the open record search on the MACHS site lets anyone check convictions by name. The arrest report itself is released by the agency that made the arrest, under the Missouri Sunshine Law.
How do I get a copy of an arrest report in Grain Valley?
From the agency that made the arrest: the Grain Valley police for its own arrests, the Jackson County Sheriff's Office for the sheriff's. Under the Missouri Sunshine Law the answer is due within 3 business days.
Is this the official Grain Valley 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.