Sewickley Heights’ humble beginning is not surprising. Its picturesque terrain was a hindrance to settlers. The earliest settlers (after the Indians) were German farmers who, for one reason or another, traveled into the hills away from the river.

Like much of the land north of the Ohio and Allegheny Rivers, early Sewickley Heights was part of the Depreciation Lands, lots surveyed and numbered for sale to veterans of the Revolutionary War. One of the original patents was issued to Thomas McKean, the first governor of Pennsylvania. When his daughter married a Spaniard, McKean’s land passed into Spanish hands from 1804 to 1881. Today we have Spanish Tract, a private roadway in the northwest portion of the Borough, as a result.

Sewickley Heights was established as a Borough in 1935, but its roots lie in the histories of Ohio, Sewickley and Aleppo Townships, from which it was formed. Early settlers in these townships were Hamilton, Lynn, McPherson, Morrow, Lutz, Ferry and Wintermantel. The first settler in present-day Sewickley Heights is believed to be Frederick Merriman, c. 1808, who had three sons. Today we have Merriman Road on the eastern edge of the Borough.

The area was mostly agricultural, with settlements clustered near the runs–Little Sewickley Creek on the west and Kilbuck on the east. Oil and gas were discovered in the 1880s, and several small, abandoned wells remain in the Heights.

The birth of Sewickley Heights as it is known today appears to have been closely related to the construction of the Allegheny Country Club, which was moved from the City of Allegheny (now Pittsburgh’s North Side) in 1902. This athletic and social Mecca brought wealthy members who had the means to construct houses with the comforts of the city and more–farm buildings, separate servants quarters, even elaborately disguised private water towers. Family and servants were transported from Pittsburgh by train.

With the improvement of technology and transportation, as well as the increasing noise and pollution of the city, the seasonal population of the Heights gradually became a year-round one.

Sewickley Heights residents formed an impressive list from Pittsburgh’s business world. Oliver, Jones, Snyder, Scaife, Robinson, Chalfant, Dravo and Heinz are some of the families who "settled" Sewickley Heights as it is known today.

In the 1950s the Borough annexed 3,200 acres from surrounding townships. In the 1970s a townhouse complex was developed near the Snyder mansion, just over the Borough line in Aleppo Township.

In the 1960s, a notable success story in preserving the rural character of Sewickley Heights was the creation of a 130-acre park, formerly part of the Lewis Park estate. This land, slated to be the site of a new public school, was purchased by residents at the last hour to be set aside for park use in perpetuity.