​Holiday Closing: all county offices are closed Monday, May 30, for the Memorial Day holiday, and will re-open Tuesday, May 31. This includes parks offices, public works, courts and all other administrative offices.

Register for Alerts

TIP 411

The Collin County Alert Network is a free service provided by the CitizenObserver organization through "tip411" to enable persons to receive alerts from the Sheriff's Office via e-mail or as a text message to a cell phone.

Through this website, The Collin County Sheriff's Office will provide information to help maintain and improve community safety. You can also opt to receive surrounding city and community alerts that are on the CitizenObserver alert system.

To sign up for the Alert Network please click the button below.

Tip 411 - Click to Sign up for Alerts


CCSO Mobile App Icon

The Collin County Sheriff's Office mobile phone app is now available through iTunes and Google Play. It enables the public to send anonymous tips to the Sheriff's Office and lets us respond, creating a two way anonymous chat.

To download the app, click one of the icons below and click the link that says "Submit A Tip."



Collin County Sheriff's Office
4300 Community Ave.
McKinney, TX 75071

Map to Justice Center


Main: 972-547-5100
Jail: 972-547-5200

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