The town includes several small villages or settlements such as Norval, Limehouse, Stewarttown and Glen Williams near Georgetown and another large population centre, Acton.

Georgetown was named after entrepreneur George Kennedy who settled in the area in 1821 and built several mills and other businesses.

The brothers of Charles Kennedy, John, Morris, Samuel and George, all acquired land close to each another in the Silver Creek Valley.

Charles Kennedy built a sawmill in a location where Main Street meets Wildwood Road today.

[3][4][5] In 1837 the Barber brothers, including William and James, purchased land and the woolen mill and foundry from Kennedy in 1837; they renamed the settlement Georgetown.

[8] Other entrepreneurs arrived including Philo Dayfoot in the early 1840s, who started the local leather industry.

[10] Author Lucy Maud Montgomery who wrote the Anne of Green Gables series lived in Norval from 1926 to 1935 and considered it to be "one of the prettiest villages in all Ontario".

[9][3][11] The settlement of Glen Williams had been called Williamsburg but the name was changed in 1852 when the post office opened.

[15][16] In 1869 the population was 1500; the Ontario Gazetteer mentioned Barber Brothers as a noted paper goods manufacturer with a staff of 40.

Electricity was not available until 1913 although John R. Barber had purchased a generator in 1888 and installed it at the Credit River; that provided power for the family's paper mill.

A double veranda graced the Main & Mill Street side of the building until the hotel was ravaged by fire in the 1880s.

Sam's wife, Ann, kept white linen in the dining room, and in its earliest years had been a popular place for wedding receptions and banquets.

The line, which transported both goods and passengers, had a combined station and substation building located at 29 Main Street South (at the current Goodfellas Pizza site).

[20] In the mid-1940s, the population was close to 4,000 and began to grow more quickly in the 1950s when Rex Heslop bought farms and developed the Delrex subdivision.

The Hotel McGibbon was still operating although Sam McGibbon had died in 1940; a daughter, Gladys, and a son, Jack, took over the business until 1962 when it was sold to Isaac Sitzer Investments and later to George and Nick Markou purchased the hotel in 1978 and operated it until the property was sold to a condominium developer in 2015.

By 1966, about 150 French-speaking Catholic families created their own parish when the old Holy Cross Church was rededicated as L'Eglise Sacre Coeur.

They are not connected to another Georgetown Raiders team which is currently a member of the Ontario Provincial Junior A Hockey League.

The annual event is held at the Georgetown Fairgrounds and consists mainly of carnival rides and rural contests, such as the tractor pull and demolition derby.

In 2003, the Fall Fair was the scene of a riot which broke out between local youth (approximately 500) and the Halton Regional Police force.

Also known as "Head For The Hills", this festival is held the third Saturday of the month in September, and runs from 11:00am–6:00pm at Trafalgar Sports Park.

The festival showcases craft brewers from across Ontario, gourmet food trucks, live music, and games.

Lennox: Major industries with head offices and facilities in Georgetown include Mold Masters Limited, CPI Canada, Eastwood Guitars, and Saputo.

Other major industrial concerns include Cooper Standard, ADM Archer Daniels Midland Cocoa (was Ambrosia Chocolate), Howmet Georgetown Casting, a division of Alcoa Power and Propulsion and Kingsbury Technologies (Canada) Inc.

A citizens group called HHORBA is trying to work with the Town in planning and constructing the trails to be as environmentally friendly, safe for hikers and enjoyable for bicyclists as possible.

Located outside of the Mold-Masters SportsPlex at 221 Guelph Street, this facility was made possible by the co-operative efforts of the Halton Hills Community through the Skateboarders, Inline Skaters & BMX Bikers of Halton Hills (SIBAHH) Committee and the Recreation and Parks Department.

The facility contains a large indoor swimming pool and hosts various exercise classes plus other community events.

Outside amenities include a splash pad, three baseball diamonds, soccer field, six tennis courts and park trails.

The Acton Branch (17 River Street) was built as the community's centennial project in a park setting, across a foot bridge over a creek.

On Saturday January 26, 2013 the renovated Georgetown Branch of the Halton Hills Public Library opened.

The GO bus connects to many of the nearby communities including Brampton, Toronto, Acton, Guelph, and Kitchener.