It includes the villages of Port Clyde and Tenants Harbor, with the latter being town's commercial center.

A favorite with artists, writers and naturalists, St. George is home to the Brothers and Hay Ledge nature preserve, comprising four islands off Port Clyde.

On February 7, 1803, the peninsula and its islands were set off and incorporated as St. George, taking its name from the river.

Shipbuilders annually produced three to four vessels, many for the coasting trade, exporting cordwood, lumber and fish.

In the 1880s, the town's rugged oceanfront beauty was discovered by "rusticators"—visitors, including artists, who bought or built summer cottages.

[1] Bounded on the west by the Saint George River, the town is located on a peninsula extending into the Gulf of Maine.

According to Roy Meservey, the first school in St. George served the children of Samuel Watts in the 1780s.

[8] As the population decreased, most of the districts were consolidated, and by the 1950s, only four remained: St. George, Clark's Island, Port Clyde, and Tenants Harbor.

[8] In 1957, despite strong public opposition, the St. George, Clark's Island, and Port Clyde schools were all closed.

[9][10] St. George High School was established in 1894 in the sail loft over Long's Store.

[8] The old building was used as the new elementary school, before being demolished a few years later and replaced by the current town office and fire station.

[8] Starting in the 2015–2016 academic year, St. George students in grades 9–12 began attending one of five schools of their choice:[9]