The establishment of the country club accelerated the settlement of the area as a haven for wealthy Pittsburgh residents.

Many estates established in Sewickley Heights up through the 1930s occupied hundreds of acres with houses of immense proportions.

As You Like It was featured in a 1903 print advertisement of the United States Battery Company that promoted electric lighting for country homes.

Sewickley Heights preserved the country character of the borough by requiring minimum lot sizes of 5 acres (20,000 m2), though many homes are on substantially larger parcels.

The park now occupies approximately 600 acres (2.4 km2) and is renowned regionally for its hiking and horse-riding trails and other recreation areas.

[7] According to the United States Census Bureau, the borough has a total area of 7.3 square miles (19 km2), all land.

Donald Trump carried the borough thrice, but by less than 20 points each time, with the best showing by a Democrat for president being the 45.47% of the vote won by Joe Biden in 2020.

[13] Sewickley Heights also supported the Republican in at least 15 of the last 18 gubernatorial elections, including Raymond Broderick in 1970, Scott Wagner in 2018, and Barbara Hafer in 1990, in spite of Broderick losing Allegheny County by 24 points, Wagner by 36, and Hafer by a margin of nearly 44 points.

[14][15] However Sewickley Heights voted for Democrat Josh Shapiro over Republican gubernatorial nominee Doug Mastriano in 2022.