Plano is the ninth-largest city in Texas, with a population of 222,000 residents. CNN Money has named Plano as the wealthiest city in the United States to live. It is one of 12 suburbs in Dallas. July is the hottest month in the city, and January is the coolest. Temperatures in Plano remain fairly comfortable throughout the year. The DART system is an option tourists have to get around the city. This offers both commuter rail and a public bus. Transportation can also be provided by way of rental cars and taxi-cab service. Car rentals are one of the most cost-effective options for visitors to the city.