About Platte County

Population 105,000 residents
County Seat Platte City
Established 1839

Platte County is located in northwestern Missouri, directly north of Kansas City, and is part of the Kansas City metropolitan area. Platte County Seat is Platte City, established in 1839. Platte County includes approximately 427 square miles and has a population of over 105,000 residents as of recent estimates, making it one of the faster-growing counties in Missouri. Platte County is bordered by the Missouri River to the south and west and shares boundaries with Buchanan and Clay Counties.

Major cities and communities include Platte County City, Parkville, Riverside, and portions of Kansas City North. Kansas City International Airport (KCI) is located within Platte County, acting as a major economic driver and transportation hub for Platte County. Historic landmarks include Platte County Courthouse, Ben Ferrel Platte County Museum, and Weston, Missouri, one of the state's oldest river towns known for its antebellum architecture and wineries.

Platte County Recorder of Deeds, located at 415 Third Street in Platte County City, maintains property records. Platte County Clerk, also at the courthouse complex, handles vital records and elections. Platte County Assessor's Office, situated at the Administration Building at 11724 NW Plaza Circle in Kansas City, manages property assessments and tax records.

Platte County's economy has evolved from its agricultural roots to include distribution, logistics, retail, and service industries, largely due to its proximity to Kansas City and excellent highway access via I-29 and I-435.

Sheriff, Police & Law Enforcement

Sheriff & Law Enforcement

Platte County Sheriff's Office is responsible for maintaining law and order in the unincorporated areas of Platte County. The office is tasked with patrolling these areas, running Platte County Detention Center, processing arrests, and maintaining criminal records. The Sheriff's Office is also involved in community policing initiatives and operates specialized divisions such as the K-9 unit and the drug enforcement task force. These programs will enhance public safety and address specific community concerns.

Police Departments

In addition to Platte County Sheriff's Office, several municipal police departments operate within Platte County. These include the Parkville Police Department, Riverside Police Department, and Weston Police Department, each serving their respective cities. These agencies work in coordination with the Sheriff's Office on major crimes and regional law enforcement initiatives. The Sheriff's Office typically handles law enforcement in unincorporated areas, while city police departments focus on urban and suburban areas within their jurisdictions.

Law Enforcement & Arrests

Platte County Sheriff's Office, headquartered at 11724 NW Plaza Circle in Kansas City, Missouri 64153, is the primary law enforcement agency for unincorporated areas of Platte County. The Sheriff's Office can be reached, and their website provides information on services, community programs, and public safety initiatives.

  • Most departments require requests to be made in person or in writing, with fees varying by agency for copies and research time.
  • Mugshots and booking photos are generally available through Platte County Detention Center's online inmate search or by contacting the jail directly.
  • Processing times for arrest records requests typically range from a few days to two weeks depending on the complexity of the request.

Platte County Detention Center, operated by the Sheriff's Office at the same address, houses inmates and provides an online inmate roster search accessible through the Sheriff's website, allowing the public to look up current detainees by name or booking number, view booking dates, charges, and bond information. Municipal police departments serving incorporated areas include the Platte City Police Department, Parkville Police Department, Riverside Police Department, and portions of the Kansas City Police Department (North Patrol Division) that cover areas within county boundaries. Arrest records and incident reports in Platte County are considered public records under Missouri's Sunshine Law (Chapter 610 RSMo), and citizens may submit written requests to the respective law enforcement agency that made the arrest.

The Sheriff's Office maintains records of all bookings, releases, and warrants served within its jurisdiction.

Criminal, Arrest & Jail Records

Criminal Records

The criminal records system in Platte County includes records of felonies, misdemeanors, traffic violations, and sex offender registrations. Platte County Sheriff's Office and local police departments maintain these records, while the Missouri State Highway Patrol provides statewide criminal background checks. Residents can request background checks through the Missouri Automated Criminal History Site (MACHS). The Missouri Bureau of Investigation also offers services for more full background checks, which include fingerprinting and access to national databases.

Arrest Records

Arrest records in Platte County are maintained by Platte County Sheriff's Office. These records include details of the arrest, charges, and personal information of the individual. Residents and attorneys can request arrest records by contacting the Sheriff's Office directly, and requests are subject to the Missouri Sunshine Law, which governs public access to government records. A typical arrest record in Platte County will include the date and location of the arrest, the arresting agency, and the charges filed against the individual.

Jail & Inmate Records

Platte County Detention Center is the primary jail facility in Platte County. It handles the booking process for people arrested within Platte County, where they are photographed, fingerprinted, and their personal information is recorded. The facility provides an inmate lookup service online, allowing the public to search for current detainees. Visitation rules at the detention center require visitors to schedule appointments in advance and adhere to strict security protocols.

  • The bond and bail process in Missouri allows for the posting of bail through a bondsman or directly with the court, depending on the charges and circumstances of the arrest.

Mugshots & Booking Photos

Mugshots in Platte County are taken and retained by Platte County Sheriff's Office during the booking process at the detention center. These booking photos are part of the public record and can be accessed through the Sheriff's Office website or by submitting a formal request. Missouri does not have specific laws regarding the removal of mugshots from public records, but individuals may petition for removal under certain circumstances, such as expungement of the charges.

Courts & Case Records

Platte County's judicial functions are primarily handled by the Circuit Court of Platte County, Division I through Division V, located at Platte County Courthouse, 415 Third Street, Platte City, MO 64079. The court can be reached for The Circuit Court has general jurisdiction over civil, criminal, family, probate, and juvenile matters as established under Missouri law. Missouri's online case management system, Case.net (www.courts.mo.gov/casenet), provides free public access to searchable court records for Platte County, allowing users to search by party name, case number, or attorney.

  • Certified copies of court documents can be obtained from the Circuit Clerk's office for a fee of approximately $3.00 for the first page and $0.50 for each additional page, though fees are subject to change.
  • The Circuit Clerk's office also maintains marriage records and can provide certified copies upon request with proper identification and payment of applicable fees.

The database includes case summaries, dockets, judgments, and dispositional information for most court cases filed in Platte County. Platte County Probate Division handles estates, guardianships, and mental health proceedings. Municipal courts operate independently in cities such as Platte County City, Parkville, and Riverside, handling traffic violations and municipal ordinance violations within their respective jurisdictions.

Public access to Missouri court records is governed by Missouri Supreme Court Rule 2 and Chapter 610 RSMo (Sunshine Law). Some records, including certain juvenile proceedings, mental health cases, and sealed records, are restricted from public access.

Property & Public Records

Platte County Recorder of Deeds, located at 415 Third Street, Platte City, MO 64079, maintains all land and property records for Platte County. The office can be reached at and operates during standard business hours Monday through Friday. The Recorder's office preserves and provides access to deeds, mortgages, deeds of trust, releases, liens (including mechanics liens and judgment liens), easements, right-of-way documents, plat maps, surveys, and other real property instruments recorded in Platte County.

  • An online property records search system is available through Platte County's website, allowing free searches by name, legal description, or document number.
  • The system provides access to scanned images of recorded documents dating back multiple decades.
  • Certified copies of recorded documents can be requested in person or by mail for a recording fee, typically $3.00 for the first page and $0.50 for each additional page.
415 Third Street, Platte City, MO 64079
11724 NW Plaza Circle, Kansas City, MO 64153

Property tax information is managed by Platte County Assessor's Office at 11724 NW Plaza Circle, Kansas City, MO 64153, phone. The Assessor maintains property valuations, ownership information, and parcel data. A free online Geographic Information System (GIS) mapping tool is accessible through Platte County website, allowing users to search parcels by address or parcel number and view aerial imagery, property characteristics, sales history, and tax assessment information.

Platte County Collector's office handles property tax collection and maintains records of tax payments, delinquencies, and tax sales. All property records are public under Missouri's Sunshine Law, Chapter 610 RSMo.

Vital Records

Vital records for Platte County, Missouri, including birth and death certificates, are managed through multiple offices depending on the type of record and date of occurrence. Birth and death certificates that occurred within Platte County can be requested from Platte County Health Department, located at 11724 NW Plaza Circle, Kansas City, MO 64153, phone. The fee for a certified birth or death certificate is typically $15 for the first copy and $13 for each additional copy of the same record ordered simultaneously.

  • Processing times are generally 3-5 business days for in-person requests and 2-3 weeks for mail requests.
  • Couples must apply in person, provide valid identification, and pay the license fee (approximately $58).
  • Certified copies of marriage records can be obtained from the Recorder's office for a fee.
  • Divorce decrees are filed with the Circuit Court of Platte County and can be requested through the Circuit Clerk's office.
11724 NW Plaza Circle, Kansas City, MO 64153

Applicants must provide valid photo identification and proof of eligibility (immediate family members or legal representatives). The Missouri Department of Health and Senior Services, Bureau of Vital Records in Jefferson City is the central state repository for all Missouri vital records and can issue certified copies for events occurring anywhere in the state; their website offers online ordering through VitalChek with expedited shipping options available for an additional fee. Marriage licenses are issued by Platte County Recorder of Deeds office at 415 Third Street, Platte City, phone.

There is no waiting period, and the license is valid for 30 days from issuance. Missouri vital records laws are codified in Chapter 193 RSMo, which governs the registration, amendment, and disclosure of vital records.

Business & Licensing

Business and licensing records in Platte County, Missouri, are maintained by multiple agencies depending on the type of business activity. Platte County Recorder of Deeds at 415 Third Street, Platte City, handles the filing and recording of fictitious name registrations (DBAs - Doing Business As), trade names, and assumed business names for entities operating in Platte County. These filings are public record and can be searched at the Recorder's office.

  • Building permits, zoning approvals, and development applications are processed through Platte County Planning and Zoning Department at 11724 NW Plaza Circle, Kansas City, phone.

The Missouri Secretary of State's Business Services Division maintains the central registry for all business entities formed in Missouri, including corporations, limited liability companies (LLCs), limited partnerships, and nonprofit organizations. Their online Business Entity Search (https://bsd.sos.mo.gov/BusinessEntity/BESearch.aspx) allows free searches by business name, registered agent, or registration number, providing information on formation date, status, registered agent, and filing history. Professional licenses for occupations such as contractors, cosmetologists, nurses, and real estate agents are regulated by their respective state boards under the Missouri Division of Professional Registration.

Sales tax permits and employer identification requirements are handled by the Missouri Department of Revenue. Local business licensing and permits vary by county within Platte County; Platte County City Clerk's office, Parkville City Hall, and other municipal offices issue local business licenses and occupational permits. Platte County Area Chamber of Commerce, serving Platte County, provides business resources and networking opportunities through their website and can be contacted for information on starting or expanding a business in Platte County.

Elections & Voter Records

Elections in Platte County, Missouri, are administered by Platte County Election Authority, located at 11724 NW Plaza Circle, Kansas City, MO 64153. The office can be reached, and their website provides full information on voter registration, polling locations, sample ballots, and election results. Voter registration in Platte County can be completed online through the Missouri Secretary of State's voter registration portal (www.sos.mo.gov/elections), in person at the Election Authority office, by mail, or at various state agencies including license bureaus.

  • Missouri law requires voters to register at least 28 days before an election to be eligible to vote in that election (referred to as the fourth Wednesday prior to election day).
  • Residents must provide proof of identity and residence when registering.
  • These records can be requested from the Election Authority under Missouri's Sunshine Law, Chapter 115 RSMo (election law) and Chapter 610 RSMo (public records law).
  • In the November 2024 general election, Platte County recorded a voter turnout of approximately 72 percent of registered voters, reflecting strong civic engagement typical of this suburban county.
  • Missouri offers no-excuse absentee voting for all registered voters.
11724 NW Plaza Circle, Kansas City, MO 64153

To find your polling place in Platte County, voters can use the polling place lookup tool on the Election Authority website or the Missouri Secretary of State's website by entering their address. Election records that are public in Missouri include voter registration lists (with certain personal information redacted for privacy), campaign finance reports filed by candidates and committees, candidate filing information, precinct-level election results, and official canvass documents. The next major election is November 4, 2025, for municipal elections in various cities within Platte County, followed by the August 2026 primary and November 3, 2026 general election, which will include races for U.S.

House of Representatives, Missouri state legislature seats, and various county offices. Absentee voting in Platte County is available for voters who will be absent from Platte County on election day, are incapacitated or confined due to illness, are caring for someone who is incapacitated, have religious beliefs or practices, are employed as an election authority, or are incarcerated but otherwise qualified. Absentee ballot applications can be submitted online, by mail, or in person to the Election Authority office.

The Election Authority provides transparency through publication of unofficial election results on election night and certified results shortly thereafter, all accessible on their website.

Economy & Demographics

Platte County, Missouri, benefits from a diverse and strong economy driven by its strategic location within the Kansas City metropolitan area and its position along major transportation corridors. Platte County's economy has evolved significantly from its historical agricultural base to include distribution, logistics, retail, aviation, and advanced manufacturing sectors.

  • The median household income in Platte County is approximately $85,000, well above both state and national averages, reflecting Platte County's suburban character and skilled workforce.

Kansas City International Airport (KCI), located entirely within Platte County, is a major economic engine, supporting thousands of jobs directly and indirectly through airlines, cargo operations, and airport services.Major employers include Amazon, which operates a massive fulfillment center in Platte County, Ford Motor Company's Kansas City Assembly Plant (partially in Platte County), Cerner Corporation (now Oracle Health), and various logistics and distribution companies attracted by proximity to interstate highways I-29 and I-435. The retail and service sectors are strong, with significant commercial development along Highway 152 and in the Zona Rosa shopping district. Agriculture remains present in rural portions of Platte County, with grain farming and cattle operations.

The unemployment rate in Platte County typically runs below state and national averages, hovering around 3-4 percent in recent years. Platte County Economic Development Council works actively to attract new businesses and retain existing employers through incentives, workforce development programs, and infrastructure improvements. Ongoing development projects include continued expansion of business parks, residential subdivisions, and mixed-use developments that capitalize on Platte County's quality of life and accessibility.

Transparency Score

Court Records: Yes: Online (Case.net) | Property: Yes: Free GIS & Recorder Search | Arrest/Jail: Yes: Online Inmate Roster | Vital Records: Limited: In-Person or Mail Required | Business: Yes: Online (State & Local) | Elections: Yes: Online Portal & Results | Overall Score: 9/10, Platte County provides excellent digital access to public records with online systems for most record types.

Official Government Resources

Frequently Asked Questions

How can I search for someone recently arrested in Platte County, Missouri?
To search for someone recently arrested in Platte County, Missouri, you can contact the Platte County Detention Center. They provide an inmate lookup service that can be accessed by visiting the the area Sheriff's Office website. The Detention Center is located at 415 3rd Street, Platte City, MO 64079, and you can also call them at (816) 858-2424 for more information.
Mugshots or booking photos in Platte County, Missouri, can be obtained from the Platte County Sheriff's Office. They may provide access to these records through their official website or upon request at their office. The Sheriff's Office is located at 415 3rd Street, Platte City, MO 64079, and you can contact them at (816) 858-2424 for further assistance.
To obtain a criminal background check in Platte County, Missouri, you should contact the Missouri State Highway Patrol's Criminal Justice Information Services Division. Locally, you can also visit the Platte County Sheriff's Office for guidance on the process. The Missouri Automated Criminal History Site (MACHS) provides an online portal for requesting background checks statewide.
You can look up sex offenders in Platte County, Missouri, by accessing the Missouri State Highway Patrol's Sex Offender Registry. This online database allows you to search for registered sex offenders by name, address, or proximity to a specific location. The registry is regularly updated and provides detailed information about each offender's status and offenses.
To register to vote in Platte County, you can complete the process online through the Missouri Secretary of State's website, in person at the Platte County Election Authority office at 11724 NW Plaza Circle in Kansas City, or by mail using a voter registration application. You must register at least 28 days before an election to be eligible to vote in that election. You'll need to provide proof of identity and residence. Once registered, you can request absentee ballots through the Election Authority office or vote in person at your designated polling place on election day.
Property records in Platte County can be accessed through the Platte County Recorder of Deeds office at 415 Third Street in Platte City or online via the county's website. The county offers a free online property records search system where you can view recorded deeds, mortgages, liens, and other land documents by searching by name, legal description, or document number. For property tax information, assessments, and parcel maps, visit the this area Assessor's online GIS system at the county website, which provides free access to parcel data, aerial imagery, sales history, and property characteristics. Certified copies of documents can be requested in person or by mail for applicable fees.
Birth and death certificates for events that occurred in Platte County can be requested from the Platte County Health Department at 11724 NW Plaza Circle in Kansas City, phone (816) 858-2412. The fee is typically $15 for the first certified copy and $13 for additional copies of the same record. You must provide valid photo identification and proof of eligibility (immediate family member or legal representative). Processing time is approximately 3-5 business days for in-person requests and 2-3 weeks for mail requests. You can also order certificates statewide through the Missouri Bureau of Vital Records in Jefferson City or online through VitalChek with expedited options available.
Business records in Platte County can be found through multiple sources depending on the business type. For fictitious name (DBA) registrations, contact the Platte County Recorder of Deeds at 415 Third Street in Platte City. For corporations, LLCs, and other state-registered entities, use the Missouri Secretary of State's free online Business Entity Search at bsd.sos.mo.gov. Local business licenses are issued by individual municipalities, so contact the city clerk's office for the specific city where the business operates (Platte City, Parkville, Riverside, etc.). Building permits and zoning records are available through the Platte County Planning and Zoning Department at (816) 858-3366.

Cities & Towns in Platte County

Explore public records for 10 cities and communities in Platte County, Missouri.

Nearby Counties

Clay County MO Wyandotte County KS Buchanan County MO Leavenworth County KS Clinton County MO Atchison County KS