Ela Township was established in 1850 as a local government agency within the state of Illinois. Ela Township serves residents in the southwest corner of Lake County. The Township is 36 square miles in area and serves 44,026 residents within its border per the 2016 U.S. Census. Ela Township serves residents that live within the following portions of communities located in its borders: Barrington, Deer Park, Hawthorn Woods, Kildeer, Lake Zurich, Long Grove, and North Barrington.
Ela Township provides residents with a wide array of services related to property tax assessments, general/emergency assistance, and highway services. In addition, the Township provides mental health services and targeted programming to assist both youth and senior populations within its borders. Ela Township maintains four parks and two cemeteries. The Township also manages a subsidized disabled/senior transportation program to assist with essential and personal travel needed for these individuals.