Geography

Map of Richardson

The cities of Dallas and Plano border most of Richardson with a few exceptions. The Lake Highlands area of northeast Dallas borders Richardson to the south, North Dallas is to the southwest, Far North Dallas is to the west, West Plano is to the northwest, East Plano is to the north, the city of Murphy is to the northeast, Sachse is to the east, and Garland is to the southeast.

Plano Plano Murphy Dallas Sachse   Richardson   Dallas Dallas Garland

Richardson is located at 32°57′56″N 96°42′57″W / 32.965628°N 96.715707°W / 32.965628; -96.715707.

According to the United States Census Bureau, the city has a total area of 28.6 square miles (74.2 km2), of which 28.6 square miles (74.0 km2) is land and 0.08 square miles (0.2 km2), or 0.32%, is water.

Approximately two-thirds of the city is in Dallas County, with the northern third of the city in Collin County. Of the 28.6 square miles (74.2 km2) contained within the borders of the city of Richardson, 18.2 square miles (47 km2) lie in Dallas County; the other 9.2 square miles (24 km2) are in Collin County.