Mckinney jail 401 E. Please visit our Inmate Search Page for all inmate information for individuals being detained at the Collin County Sheriff's Office Detention Facility. Ruffini and finished in 1880. If you're seeking information on a current prisoner in the county jail, go here. gov. You must arrive to sign up 20 minutes ahaead of visit. Texas Department of Criminal Justice | PO Box 99 | Huntsville, Texas 77342-0099 | (936) 295-6371 The official county government website for Collin County to find government documents and services, and contact county elected officials, including elections, land records, jury duty, court cases, county sheriff, county jail, district attorney, property taxes, vehicle registrations, animal control, job openings, auctions, sales and foreclosures. Apr 22, 2025 ยท As of the 2010 United States Census, the county's population was 782,341, making it the seventh-most populous county in Texas and the 45th-largest county by population in the United States. Fax Number 505-726-9522 . Collin County Detention Facility ON-SITE (at the jail) VIDEO VISITATION SCHEDULE 4300 Community Ave McKinney, TX 75071 972-547-5200. rxkwytriqpdvlqnhfbjkpbqhvoirdaabbjnosrmbwgwcbpmschoohokiuokoqiktox