[header] How to find out if someone is in jail in williamson county, texas [title] Start with the official county web site. [step] Go to the official williamson county records inquiry web site [title] Select " jail records. [step] " at the bottom of the page, under the section heading " jail records, " select the light blue words, " jail records. 
" this will take you directly to a page to search for information about prisoners who have been taken into custody. The top half of the page is used if you want to search a variety of other court records.