city-data.com can help you find the largest cities in each state in the USA.
It can also help you with the latest city real estate prices and sales trends, recent home sales, home value estimator, demographics, geographical data, state profiles, crime data, registered sex offenders, cost of living, housing, religions, businesses, local news links, city government finances and employment, weather, schools, libraries, houses, airports, radio and TV stations and a lot more ...
city-data.com makes extensive use of Google Maps throughout the site. From the homepage if you select a state you can view a Google Map of the population sizes of the state's cities. You can also view a Google Map of the Most Populated 101 Cities, the Cities with the Most Cars, the Cities with the Highest Earners and many, many, many more Google Maps in the City Top Lists Section.