Mendota is a city located in north-central Illinois in LaSalle County, Illinois, United States. The city has 7,272 residents, and is the fifth largest city in LaSalle County. The current mayor is David W. Boelk, an independent elected to a four year term in April 2005. Mendota apartments for rent comparison page shows most up to date rent information on Mendota apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.