A sheriff is a government official, with varying duties, existing in some countries with historical ties to England where the office originated. There is an analogous, although independently developed, office in Iceland, the sýslumaður, which is commonly translated to English as sheriff.
The Jacksonville Sheriff's Office (JSO) is a joint city-county law enforcement agency, which has primary responsibility for law enforcement, investigation, and corrections within the consolidated City of Jacksonville and Duval County, Florida, United States. Duval County includes the incorporated cities of Jacksonville, Atlantic Beach, Baldwin, Jacksonville Beach, and Neptune Beach; the beach cities have their own police departments as well.
The Orange County Sheriff's Department (OCSD) is the law enforcement agency serving Orange County, California. It currently serves the unincorporated areas of Orange County and thirteen contract cities in the county: Aliso Viejo, Dana Point, Laguna Hills, Laguna Niguel, Laguna Woods, Lake Forest, Mission Viejo, Rancho Santa Margarita, San Clemente, San Juan Capistrano, Stanton, Villa Park, and Yorba Linda.
The Lake County Sheriff's Office is the largest law enforcement agency in Lake County, Florida, United States. Per the State of Florida Constitution, the sheriff is the chief law enforcement officer of both the incorporated and unincorporated areas of the county. The current Sheriff is U.S. Marine Corps veteran Peyton C. Grinnell who was elected November, 2016 in the Lake County general election. He succeeds Sheriff Gary Borders, who was appointed by Governor Jeb Bush following the death of Sheriff Chris Daniels in 2006, and was subsequently elected in 2008, and 2012. The agency has been awarded with a certificate of accreditation from the Commission for Florida Law Enforcement Accreditation, consequently, both the Law Enforcement and Corrections divisions of the Lake County Sheriff's Office are now accredited.
The Riverside County Sheriff's Department (RSD), also known as the Riverside Sheriff's Office (RSO), is a law enforcement agency in Riverside County, in the U.S. state of California. Overseen by an elected sheriff-coroner, the department serves unincorporated areas of Riverside County as well as some of the incorporated cities in the county by contract. 17 of the county's 26 cities, with populations ranging from 4,958 to 193,365, contract with the department for police services. The county hospital and one tribal community also contract with the department for proactive policing. Riverside County is home to 12 federally recognized Indian reservations. Absent proactive policing and traffic enforcement, the department is responsible for enforcing criminal law on all Native American tribal land within the county. This function is mandated by Public Law 280, enacted in 1953, which transferred the responsibility of criminal law enforcement on tribal land from the federal government to specified state governments including California. The department also operates the county's jail system.
The Lake County Sheriff's Department is the county law enforcement agency for Lake County, Indiana.
The Harris County Sheriff's Office (HCSO) is a local law enforcement agency serving the over four million citizens of Harris County, Texas, United States. It is headquartered on the first and second floors in the 1200 Baker Street Jail in Downtown Houston.
Sheriffs In the United States are the chief of law enforcement officers of a county. Sheriffs are usually either elected by the populace or appointed by an elected body.
The Allegany County Sheriff's Office (ACSO) is the primary law enforcement agency for Allegany County, Maryland. The ACSO is a nationally accredited law enforcement agency servicing 430 square miles (1,100 km2) and a population of 75,300.
The Calvert County Sheriff's Office (CCSO) is the primary law enforcement agency servicing over 87,000 residents and 213 square miles (550 km2) in Calvert County, Maryland.
The Maricopa County Sheriff's Office (MCSO) is the law enforcement agency that serves Maricopa County, Arizona, and is the largest sheriff's office in Arizona. The MCSO provides patrol services and criminal investigation to unincorporated areas of the county and operates the county jail system. It also serves as the primary law enforcement agency for any incorporated cities within the county that have contracted with the agency for law-enforcement services. The county sheriff is elected by the citizens and serves as the highest law enforcement official in Maricopa County. The current Sheriff of Maricopa County is Russ Skinner, appointed in 2024. As a result of policies and practices under former sheriff Joe Arpaio the MCSO has received significant critical media coverage, federal investigation, and judicial oversight.
The Charles County Sheriff's Office (CCSO) is a nationally accredited, full-service law enforcement agency servicing a population of 166,617 within 457.8 square miles (1,186 km2) of Charles County, Maryland, United States.
The San Bernardino County Sheriff-Coroner's Department (SBSD) serves San Bernardino County, California, which is geographically the largest county in the continental United States and is headquartered in San Bernardino. SBSD provides law enforcement services to the unincorporated areas of the county and contract law enforcement services to 14 of the county's cities, including Rancho Cucamonga and Chino Hills, serving a total of 1,029,466 of the county's 2 million residents. The department also operates the county jail system, provides marshal services for the county superior courts, and has other specialized divisions to serve the citizens of San Bernardino County.
The Cook County Jail, located on 96 acres in South Lawndale, Chicago, Illinois, is operated by the Sheriff of Cook County. It is sometimes referred to as California or Hotel California, as its address is on California Avenue. A city jail has existed on this site since after the Great Chicago Fire of 1871, but major County prisoners were not generally collocated here until closure of the old Hubbard Street Criminal Court Building and jail in 1929. Since then, a 1920s neoclassical and art deco courthouse for the criminal division of the Cook County Circuit Court has operated at the South Lawndale complex.
The Alberta Sheriffs Branch is a provincial law enforcement agency overseen by the Ministry of Public Safety and Emergency Services of the province of Alberta, Canada. Under the authority of the Peace Officer Act, Alberta Sheriffs are provincial peace officers with jurisdiction over the province of Alberta. The premier of Alberta has the authority to grant emergency police powers to all Alberta sheriffs during major emergencies within the province. The Alberta Sheriffs Branch is the largest sheriff service in Canada.
The Nassau County Sheriff's Department is the law enforcement agency of Nassau County, New York.
The Baltimore City Sheriff's Office is the law enforcement arm of the Circuit Court of Maryland, serving Baltimore, Maryland. The office is headquartered in Courthouse West of the Baltimore City Circuit Courthouses, which also serves as the sites for Baltimore City branch of the Circuit Court of Maryland.
The Will County Sheriff's Office is the principal law enforcement agency that serves Will County, Illinois. It is the second largest sheriff's department in Illinois, with approximately 650 sworn and civilian employees when at full operational strength. It is headed by the Sheriff of Will County, currently Mike Kelley.
Sarasota County Sheriff's Office (SCSO) is the primary law enforcement agency for Sarasota County, Florida. The agency is responsible for law enforcement services in unincorporated areas of Sarasota County, jail facilities, and courthouse security for Florida's 12th Judicial Circuit. SSO also operates Public Safety Communications (PSC), the county's primary 911 center.
The Milwaukee County Sheriff's Office is the principal law enforcement agency that serves Milwaukee County, Wisconsin. It provides law enforcement services for the county's freeways and outlying lettered County Trunk Highways, the Milwaukee County Courthouse, the Milwaukee County Criminal Justice Facility and House of Corrections, the county-owned Milwaukee Mitchell International Airport, and the Milwaukee County Parks system, including all of the Milwaukee County lakefront, along with the county's few unincorporated sections.
