Collin County
1,297,179 people, served by 33 police agencies that report to the FBI. Below: how a case moves here, from arrest to court.
How a case moves here
Collin County follows Texas law on arrests, release, and courts. These rules are the same in every county in the state; the full set covers prosecutors, defense, and jails too.
- Who decides release first
A magistrate sets bail first, at the hearing that must follow arrest. Magistrates include judges of every level, justices of the peace, and, in some counties, appointed criminal law magistrates. In misdemeanors, a sheriff, officer, or licensed jailer may take bail, and many counties use bond schedules signed by judges.
Tex. Code Crim. Proc. arts. 17.027, 17.20 to 17.22Tex. Code Crim. Proc. art. 15.17- Time to see a judge
A person arrested must be taken before a magistrate without unnecessary delay and no later than 48 hours after arrest. The magistrate gives the warnings, sets bail, and can appoint a lawyer. The hearing may be held by video.
Tex. Code Crim. Proc. art. 15.17(a)- Money bail
Texas allows money bail. Since voters approved Proposition 3 in November 2025, a judge must deny bail for murder, aggravated assault, aggravated robbery, aggravated sexual assault, and several other felonies when the state proves flight risk or danger at a hearing, and must explain in writing any grant of bail on those charges.
Tex. Const. art. I, secs. 11 to 11dTex. Code Crim. Proc. art. 17.15- Courts
District courts try felonies. Each county has a constitutional county court, and larger counties add county courts at law; these hear Class A and B misdemeanors. Justice courts and city municipal courts hear Class C misdemeanors, which carry only a fine.
Texas Office of Court Administration, The Texas Judicial System (2025)- Judges and magistrates
Voters choose district judges in partisan elections for four-year terms, and the governor fills vacancies until the next election. County judges, county court at law judges, and justices of the peace also win partisan elections for four-year terms. Justices of the peace and most constitutional county judges need not be lawyers; most municipal judges are appointed by the city council.
Texas Office of Court Administration, The Texas Judicial System (2025), "Selection and terms"
Read from the statutes and court rules cited, 2026-09-30. Prop 3 (2025) changed when bail must be denied, not whether money bail exists. Appointed criminal law magistrates exist only in counties with an enabling section in Gov't Code ch. 54, such as Harris, Dallas, Bexar, and Travis. Counts of public defender offices change often; check TIDC before quoting a number.
What this county does differently
Nothing county-specific yet
Police agencies
- Dallas Police DepartmentDallas city1,331,217 served
- Plano Police DepartmentPlano city295,030 served
- Garland Police DepartmentGarland city251,332 served
- Frisco Police DepartmentCity244,103 served
- McKinney Police DepartmentMcKinney city235,731 served
- Carrollton Police DepartmentCity135,908 served
- Richardson Police DepartmentCity117,915 served
- Allen Police DepartmentAllen city115,905 served
- Collin County Sheriff's OfficeCounty95,732 served
- Wylie Police DepartmentWylie city64,291 served
- Celina Police DepartmentCelina city53,580 served
- Prosper Police DepartmentCity48,795 served
- Anna Police DepartmentCity37,165 served
- Sachse Police DepartmentSachse city34,679 served
- Royse City Police DepartmentCity31,093 served
- Melissa Police DepartmentCity30,479 served
- Princeton Police DepartmentCity26,983 served
- Murphy Police DepartmentMurphy city21,116 served
- Fairview Police DepartmentCity11,050 served
- Lavon Police DepartmentCity9,932 served
- Parker Police DepartmentParker city6,552 served
- Josephine Police DepartmentCity4,994 served
- Farmersville Police DepartmentFarmersville city4,556 served
- Collin County Community College DistrictUniversity or College
- Collin County Constable: Precinct 1Other
- Collin County Constable: Precinct 2Other
- Collin County Constable: Precinct 3Other
- Collin County Constable: Precinct 4Other
- Independent School District: AnnaOther
- Independent School District: CommunityOther
- Independent School District: FarmersvilleOther
- Independent School District: MelissaOther
- Independent School District: ProsperOther
Agencies: FBI NIBRS master file 2025 batch headers; names from the FBI agency list, pulled 2026-09-29. An agency that serves several counties appears on each. Population served is the FBI's figure.
Crime and arrests
No figures yet