Over the Paleoindian period the site was revisted multiple times by other nomadic peoples until it gradually became buried by sediment from the river's occasional flooding.

In the winter of 2019, the campsite remains were excavated in Avon, along with stone tools and artifacts constructed from materials in neighboring regions.

In 1750, the parish of Northington was established in the northern part of Farmington, to support a Congregational church more accessible to the local population.

Its first pastor was Ebenezer Booge, a graduate of Yale Divinity School who arrived in 1751.

The East side of Avon is flanked by Talcott Mountain, part of the Metacomet Ridge, a mountainous trap rock ridgeline that stretches from Long Island Sound to near the Vermont border.

Talcott Mountain is a popular outdoor recreation resource notable for its towering western cliff faces.

More to the east is where the Farmington River also cuts through the town, right near the Avon Congregational Church and a large shopping area and Strip Mall's following Route 44 and U.S. Route 202 As of the 2020 census, Avon had a population of 18,932.

[13] Once predominantly Republican, Avon has shifted to be friendlier to Democrats in recent elections.

[20] In 2008, Avon voters gave Democrat Barack Obama the majority of the vote.

[21] After flipping back red for Mitt Romney in 2012, town voters gave a majority to Hillary Clinton in 2016.