Collin County provides a thorough list of government departments, services and common terms alphabetized below for your convenience. For a list of departments only, please view the Directory of Departments.

If you need help finding a item not listed, please call 972.548.4100 (McKinney) or 972.424.1460 (Metro).

0-9 A B C | D E F | G H I J K L | M N O P | Q R S T | U V W X Y Z