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.
Platte County, Missouri, has about 113,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Platte County Sheriff's Office, eight city agencies and one other agency. 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 Prosecuting Attorney files charges, a case in the Platte County Circuit 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: Platte County public records, Missouri arrest records, Missouri inmate search and Missouri criminal records.
Who Makes Arrests in Platte County
The Platte County Sheriff's Office is the county agency that reports arrests to the FBI for Platte County. It reported 1,113 arrests for 2025.
The FBI lists eight cities in Platte County with a reporting agency of their own, with the Census population and what each reported:
- Parkville, 8,980 residents: 50 arrests reported for 2024.
- Platte City, 4,867 residents: 14 arrests reported for 2025.
- Riverside, 4,498 residents: 393 arrests reported for 2025.
- Weatherby Lake, 2,125 residents: 3 arrests reported for 2025.
- Weston, 1,837 residents: 1 arrests reported for 2025.
- Edgerton, 609 residents: 1,177 arrests reported for 2025.
- Platte Woods, 393 residents: 0 arrests reported for 2024.
- Tracy, 319 residents: 1 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 Smithville Police Department and the Kansas City Police Department are each listed by the FBI across several counties including Platte County, so their arrests are not broken out for Platte County here.
The FBI's agency list also places one more agency in Platte County: Kansas City International Airport (other).
How Many Arrests Each Agency Reports in Platte County
The FBI publishes every agency's monthly arrest counts 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.
- Edgerton: 1,177 for 2025, 1,175 for 2024, 1,176 for 2023, 1,170 for 2022, 1,145 for 2021 and 1,167 for 2020.
- Platte County Sheriff's Office: 1,113 for 2025, 1,006 for 2024, 516 for 2023, 417 for 2020 and 724 for 2019; 2021 and 2022 are missing months.
- Riverside: 393 for 2025, 326 for 2024, 397 for 2023, 341 for 2022, 382 for 2021 and 300 for 2020.
- Platte City: 14 for 2025, 3 for 2024, 12 for 2023, 18 for 2022, 14 for 2021 and 31 for 2020.
- Weatherby Lake: 3 for 2025, 2 for 2023 and 22 for 2019; 2020, 2021, 2022 and 2024 are missing months.
- Tracy: 1 for 2025, 1 for 2024 and 0 for 2023.
- Weston: 1 for 2025, 2 for 2024, 2 for 2023, 12 for 2022, 12 for 2021 and 29 for 2019; 2020 is missing months.
- Parkville: 50 for 2024, 63 for 2023, 57 for 2021, 123 for 2020 and 266 for 2019; 2022 is missing months.
- Platte Woods: 0 for 2024 and 12 for 2019; 2020, 2021, 2022 and 2023 are missing months.
Together, the seven agencies with all twelve months of 2025 on file reported 2,702 arrests that year. The six of them with both 2025 and 2024 complete reported 2,699 in 2025 against 2,513 in 2024, up 7.4 percent.
Through June 2026, the six agencies with every month so far on file reported 1,371 arrests, against 1,374 in the same months of 2025.
Parkville and Platte Woods reported only part of 2025 (11 months and 11 months) and are left out of the totals.
Booking: Where People Arrested in Platte County Are Held
A person kept in custody after an arrest in Platte 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 2021 the jail held about 120 people, down from about 170 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 180 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 jail page of the Platte County Sheriff's Office at plattesheriff.org/divisions/detention/index.php (page title: Sheriff Platte County), phone 816-858-2424, Monday - Friday, 8 am to 5 pm, which answered when SearchSystems opened it on September 23, 2026.
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 Platte County
An arrest in Platte County can be traced in two places, depending on where the case stands: Case.net, the Missouri courts' free statewide case search, which shows whether charges were filed; the Prosecuting Attorney, which decides whether an arrest becomes a charge (its page is at co.platte.mo.us/prosecutor, phone (816) 858-3476).
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 Platte County
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 Platte County Sheriff's Office: ask its records unit, reached through the office at 816-858-2424.
- An arrest in Parkville, Platte City, Riverside, Weatherby Lake, Weston, Edgerton or another of the cities listed above: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
- An arrest by Kansas City International Airport: the records office of the agency involved.
- A defendant who has been charged gets the report through the case: the Prosecuting Attorney, (816) 858-3476, handles discovery for pending cases.
- Any county record that is not posted: the county records request page SearchSystems verified is at co.platte.mo.us/sunshine-requests (page title: Sunshine Requests | Platte County).
- Your own statewide record: the same request described above, for your own name.
Cities in Platte County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for eight of the 17 cities in Platte County: Parkville, Platte City, Riverside, Weatherby Lake, Weston, Edgerton, Platte Woods and Tracy. Lake Waukomis, Ferrelview, Dearborn, Camden Point, Northmoor, Farley, Houston Lake, Ridgely and Iatan 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 Platte County Circuit Court.
SearchSystems has a guide to the offices of these cities in Platte County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:
- Parkville (8,980)
Frequently Asked Questions
How many arrests are made in Platte County each year?
Edgerton reported 1,177 arrests to the FBI for 2025, and the seven agencies with every month of 2025 on file reported 2,702 between them.
How do I find out if someone is in jail in Platte County?
Ask the Platte County Sheriff's Office at 816-858-2424; its jail page SearchSystems verified is at plattesheriff.org.
Where are people arrested in Platte County booked?
Those kept in custody go to the county jail, run by the Platte County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Platte County?
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 Platte County?
From the agency that made the arrest: the Platte County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Missouri Sunshine Law the answer is due within 3 business days; the county records request page SearchSystems verified is at co.platte.mo.us/sunshine-requests.
Is this the official Platte 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.