[2] According to the United States Census Bureau, the village has a total area of 0.6 square miles (1.6 km2), all land.

The village of Delanson is situated in the southern part of the town of Duanesburg, Schenectady County, New York.

The sister hamlet of Quaker Street, situated approximately one-half mile to the south of Delanson and on the Danforth Turnpike (now New York Route 7), was the pioneer business center serving the surrounding territory before the era of railroad transportation.

What is now known as Delanson was then referred to as Toad Hollow because it lies to the head of the Normans Kill drainage.

The first section extended from Albany to Central Bridge, and their engineers, seeking a favorable grade, found the desired route passed through the upper part of the Normans Kill valley which provided an improved means of transportation for this vicinity.

A station and freight house were erected on the east side of the highway crossing, between certain tracks existing at that time.

For many years Doctors Hill and Roche of Quaker Street gave medical attention to persons in the territory.

In keeping with the times two hotels were brought into being for the accommodation of the traveling public; one by James Shoudy and the other later owned by Richard Mackey.

Because of the nature of the employment, the population of the village was largely of the transient type with employees coming here to work for terms of different duration and leaving through advancement, promotion, or the desire to seek other employment due to the proximity of Schenectady with its extensive enterprises.

During the agitation for a name, a post office, and other matters necessary to a new community, the people were not unmindful of their needs for a place in which to worship.

The reward of their efforts was the Methodist Episcopal Church, erected in 1877–78, which still stands and adequately serves its purpose.

Building a new station here necessitated the removal of the first crude method of refueling locomotives, and a turntable, to a new location.

The hotel and restaurant owned and operated by Mr. James Shoudy, located just south of the station burned in June 1891.

Since then Mr. Kapper and then Mr. R. P. Hagadorn purchased and operated the greenhouse – after approximately fifty five years of service this was torn down.

The demands for improved water service for both railroad and domestic purposes reached a stage beyond the ability of private means to supply.

As a result, the Duanesburg Water Company was incorporated and a reservoir with the necessary means of distribution was installed.

Surrounding territory supplied the railroad with a considerable amount of business through the shipment of hay, handled by dealers located here at different times.

Under his supervision, and with the aid of a progressive board of trustees, a building was built, to be known as the Village Hall, and with provisions for housing the fire-fighting equipment and headquarters for the fire department.

This building, started in 1922, and completed in 1923, contains, besides the above-mentioned features, an auditorium, a room for the Village Board and a fully equipped kitchen.

In 1925, the Fulton County Gas and Electric Company established service in this village, providing street lights and current for domestic use.