Welcome To Osage County
Oklahoma’s Largest County

At the Osage County Sheriffβs Office, our mission is to provide a solid foundation on which the residents of Osage County can thrive. We are committed to building public trust and fostering safe, secure communities through professional, high-quality professional law enforcement.
Osage County holds a unique place in Oklahomaβs history and geography. As the stateβs largest county by area, it was established in 1907 when Oklahoma gained statehood. The countyβs name and heritage are deeply tied to the federally recognized Osage Nation, whose reservation boundaries are coextensive with the county itself. This land became the Osage Nation Reservation in the 19th century following the relocation of the Osage people from Kansas.
The county seat, Pawhuska, is one of the first three towns founded in the county and remains a hub of history and culture. As of the 2020 Census, Osage County had a population of 45,818 residents.
According to the U.S. Census Bureau, the county spans an impressive 2,304 square miles (5,970 kmΒ²), with 2,246 square miles (5,820 kmΒ²) of land and 58 square miles (150 kmΒ²) of water, accounting for 2.5% of its total area. Much of the landscape is part of the Osage Plains, characterized by open prairie, while the eastern portion features the rolling Osage Hillsβan extension of Kansasβ Flint Hills. Nature enthusiasts can also explore the renowned Tallgrass Prairie Preserve, located just north of Pawhuska, where remnants of the once-vast tallgrass ecosystem are carefully preserved.
MEET OUR LEADERS

Bart Perrier
Sheriff

Billy Wakefield
Undersheriff

John Cummings
Chief Deputy

Jay Long
Jail Captain

Shane Rhames
Investigations Captain
OUR LAW ENFORCEMENT TEAM

Osage County Sheriff’s Office
September 2026


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October 22, 2026
OSAGE COUNTY, OKLAHOMA β On October 21, 2026, deputies with the Osage County Sheriff's Office arrested a convicted felon following a reported kidnapping involving a Kansas woman who was allegedly held against her will and threatened with death at a rural Osage County residence.
At approximately 2:42 a.m., the Sheriff's Office received information from the Arkansas City, Kansas Police Department regarding a woman who had sent messages indicating she was being held against her will.
Deputies located the woman at a residence on George Braden Road near Ponca City, within Osage County and safely removed her from the residence.
Investigators learned the victim had met the suspect, Zachary Troy Mauk, through Facebook Dating. After communicating for approximately one week, Mauk traveled to Kansas, picked her up, and brought her to his Oklahoma residence.
According to the victim, when she attempted to leave on October 20, Mauk became violent and threatened to kill her and members of her family. When Mauk's father attempted to help the woman leave in a pickup, Mauk allegedly jumped onto the vehicle, broke out the rear window, and attempted to forcibly remove her. The victim also reported being threatened with a handgun.
Investigators discovered Mauk had a prior felony conviction for Attempted First-Degree Murder in North Carolina in 2016.
At approximately 7:50 a.m. on October 21, deputies executed a search warrant at Mauk's residence and recovered three firearms from his bedroom.
Mauk was arrested and transported to the Osage County Jail on the following charges:
β’ Domestic Abuse β 21 O.S. Β§ 644(C)
β’ Kidnapping β 21 O.S. Β§ 741
β’ Possession of a Firearm After Former Felony Conviction β 21 O.S. Β§ 1283(A)
β’ Planning or Endeavoring to Perform an Act of Violence β 21 O.S. Β§ 1378(A)
This is an arrest not a conviction. …
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This month, the Osage County Sheriffβs Office is proud to recognize Executive Administrative Assistant Achsah Elliott, whose years of service, institutional knowledge, and wide-ranging responsibilities have made her an important part of the daily operation of the Sheriffβs Office.
Achsahβs history with OCSO began on August 4, 2003, when she joined the Sheriffβs Office as a member of the clerical and administrative staff. During her first decade with the agency, Achsah served under Sheriff Russell Cottle, Sheriff Wes Penland, and Sheriff Ty Koch, remaining with the office until June 2013.
During those years, Achsah handled numerous administrative responsibilities, including employee timekeeping, transcribing statements, maintaining records, and assisting with the many day-to-day duties necessary to keep the Sheriffβs Office operating.
But Achsahβs service was not limited to working behind a desk.
In October 2005, she completed her Reserve CLEET certification and became an OCSO Reserve Deputy, volunteering her time to assist the Patrol Division and working special events throughout Osage County. Even after leaving her full-time position with the Sheriffβs Office in 2013, Achsah maintained her connection to law enforcement and resumed serving as an OCSO Reserve Deputy in 2018.
In August 2023, Achsah returned to the Sheriffβs Office full time as Executive Administrative Assistant under Sheriff Eddie Virden. She continues in that position today under Sheriff Bart Perrier, carrying responsibilities that touch nearly every division and employee within the organization.
Achsah helps oversee the Sheriffβs Officeβs human resources, payroll, purchasing, accounts payable, grants, and overall budget administration. From managing millions of dollars in public funds and monitoring expenditures to purchasing equipment, administering grant programs, and making sure employees get paid, Achsah is involved in virtually every aspect of the business side of the Sheriffβs Office.
Her position requires organization, confidentiality, attention to detail, and constant coordination with the Sheriff, command staff, county offices, vendors, employees, and numerous outside agencies.
While deputies, detention officers, and dispatchers are often the most visible parts of a Sheriffβs Office, an organization of this size cannot function without dedicated people working behind the scenes. Achsah is one of those people.
As Executive Administrative Assistant, she serves as the right hand of the Sheriff on many administrative and financial matters and is one of the key members of Sheriff Perrierβs leadership team. Her knowledge of the organization, willingness to take on difficult tasks, and years of experience make her a valuable resource throughout the Sheriffβs Office.
From administrative employee to Reserve Deputy to Executive Administrative Assistant, Achsahβs history with OCSO now spans more than two decades and multiple generations of leadership.
Please join us in recognizing Executive Administrative Assistant Achsah Elliott and thanking her for her continued dedication to the Osage County Sheriffβs Office and the citizens of Osage County.
#EmployeeHighlight #OCSO #OsageCounty #PublicService #BehindTheBadge …
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Here is our monthly stats for September! …
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The Osage County Sheriffβs Office and Sheriff Bart Perrier proudly stand with the Oklahoma Sheriffsβ Association (OSA).
The OSA serves as a unified voice for Sheriffs across Oklahoma, representing our interests at the State Capitol while providing valuable resources, legislative advocacy, professional development, and a strong statewide network.
The association plays an important role in strengthening the Office of Sheriff and ensuring we have the tools and resources necessary to better serve our citizens.
A stronger Oklahoma Sheriffsβ Association means stronger sheriffsβ offices, safer communities, and ultimately, a stronger Osage County.
Learn more about the Oklahoma Sheriffsβ Association:
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Oklahoma Sheriffs' Association
www.oklahomasheriffs.org
The Oklahoma Sheriffs’ Association provides support, training, and resources to sheriffs across Oklahoma. Join us in supporting law enforcement and public safety in Oklahoma.1 CommentsComment on Facebook
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On October 12, 2026, at approximately 2:30 p.m., Osage County Sheriff's Office deputies attempted to serve two outstanding felony warrants on Larry Don Dunn at a residence on Water Tower Road near Sand Springs, Oklahoma.
Dunn was wanted on two felony warrants, CF-2017-224 and CF-2019-350, with a combined bond of $30,000.
Upon arrival, deputies were informed that Dunn was inside the residence. Despite repeated knocks, announcements, and attempts to contact him by phone, Dunn refused to respond.
With the homeowner's permission, deputies entered and searched the residence. Surveillance footage confirmed Dunn had not left the property. After nearly two hours, deputies located Dunn hiding in the attic. He was taken into custody without incident.
Dunn later admitted he knew about the warrants, heard deputies searching for him, and intentionally turned off his phone to avoid arrest. He also admitted becoming nervous when deputies searched the attic with flashlights and eventually came down because of the heat.
#OsageCountySheriff #OCSO #OsageCounty #SandSprings #WarrantArrest …
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The Osage County Sheriffβs Office is proud to recognize Investigators Brett Barnett and Anthony Barrett, who were presented with Purple Heart Awards during the Oklahoma Sheriffsβ Association Annual Conference held this past week in Oklahoma City.
Both investigators were wounded by gunfire in the line of duty while responding to a domestic disturbance call in late 2025.
The Purple Heart Award recognizes law enforcement officers who have been wounded or seriously injured in the line of duty. It is a reminder of the dangers our deputies face and the sacrifices they are willing to make in service to their communities.
We are extremely proud of Investigators Barnett and Barrett for their courage, dedication, and continued commitment to serving the citizens of Osage County.
Please join us in congratulating these two deserving investigators on this well-earned recognition.
#OsageCountySheriff #PurpleHeartAward #OklahomaSheriffsAssociation #LawEnforcement #HonoringOurHeroes #OsageCounty …
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