Lake Bluff is a village in Lake County, Illinois, United States. Per the 2020 census, the population was 5,616.

The first settler family to allegation land within the area now share of Lake Bluff arrived in 1836. They claimed 100 acres of land extending from the lake west to the Green Bay Trail. In 1849, a few residents left to object their fortune in the California gold rush. In 1837, William and Mary Dwyer claimed the home just north of the former Central School. They opened and operated a stage coach stop and tavern along the Green Bay Trail. Some of the other early settlers were Henry and Angeline Ostrander, James Cole and William Whitnell.

In 1855, the first railroad through Lake County was completed, running from Chicago through the county line. Henry Ostrander owned the house where the depot was to be placed, and he certainly to donate the site if the depot were called “Rockland.” Therefore, this area, known previously as the Dwyer Settlement and Oak Hill, became Rockland, the only stop between Highland Park and Waukegan. Rockland had a declare office and general store upon Mawman Avenue as soon as a small school and church located west of the tracks close Green Bay Road.

In 1875, a bureau of Methodist ministers led by Solomon Thatcher of River Forest purchased 100 acres of lakefront property from Ben Cloes, the youngest son of the first settlers.
The Lake Bluff Camp Meeting Association was formed and Rockland was renamed “Lake Bluff.” The Association planned a resort that would allow not abandoned religious endeavors but after that social, cultural, educational and recreational programs. From the beginning, the Camp Meeting was flourishing at bringing in well-known personalities of the time, such as Frances Willard and Mrs. Rutherford B. Hayes. Summer visitors were attracted to Lake Bluff to enjoy the beach and ravines and participate in the Camp Meeting activities. A 10-acre lake in the center of town, Artesian Lake, provided extra recreational opportunities. Lake Bluff was a summer colony at the time, as most residents were seasonal.