Barrington Hills is a village located about 40 miles (64 km) northwest of Chicago in the U.S. state of Illinois.

A minimum 5-acre (2.0 ha) zoning restriction has been in effect on new construction since 1963, but the existence of equestrian farms antedates the village by decades.

It was acquired by Citizens for Conservation in 2022 CFC plans to restore the original countours of Spring Creek as well as wetlands and prairies.

[6] A memorial plaque outside the church lists 91 area residents - one woman and 90 men - who served in the Civil War.

In 1867, land was purchased at the southwest corner of Church and River - Algonquin roads, and construction was started on St. John Nepomucene Chapel, named after the patron saint of Bohemia.

Completed in 1873, the chapel was never served by its own priest, and currently services are scheduled only once a year.

[7][8] Starting about 1900, business executives from Chicago, many of whom were tied to the railroad industry, purchased the rolling farms and subdivided them into large summer estates.

He worked in Chicago commerce, but his hobby was dairy farming on his large country estate which was led by his son Spencer Otis Jr. who attended agricultural school in at the University of Illinois in Urbana.

At this time the university was experimenting building round barns, of which became an Otis signature, as there were three built on the Hawthorne Farm.

[9] Several of Otis Senior's business associates, including George E. Van Hagen, also built large estates in the area and ran their summer homes as year-round dairy farms.

Noted Chicago architect Robert Work, who was associated with David Adler, designed the first clubhouse, which was opened in 1926 and burned to the ground in 1930.

[11] Countryside Elementary School draws students from both Barrington Hills and the eastern half of Fox River Grove which falls into District 220 also.

Over the years, Flint Creek has been impounded such that along its course in the Cook County portion of the village are substantial lakes with such names as Hawley, Hawthorne, and Keene.

With a population of 4,209 in 2010, Barrington Hills has kept its rural flavor as industrial and commercial development has sprung up around its borders.

Barrington Hills is one of only three municipalities in Illinois (along with Aurora and Centralia) with land located among four counties.

[15] It was then composed of land only in the northwest corner of Cook County, and expanded over the next five years to its approximate configuration of today.

With the incorporation of Middlebury, the village government acquired its first building, a single-room school house converted into a police station.

The building hosts the Barrington Hills Police station, administrative offices and public meeting rooms.