The Census Bureau' annual analysis of population in America's cities, released today, reports that Georgetown, Texas , near Austin, became the nation's fastest growing city with a population increase of 7.8%. Meantime, New York remained the nation's largest city with a population increase of 55,000, with most of that growth coming in the boroughs of Queens (16,700), Brooklyn (16,000) and the Bronx (13,700).

Georgetown is part of the Austin-Round Rock metro area, which crossed the 2 million population threshold in 2015 for the first time, according to statistics released earlier this year. The metro area is also home to Pflugerville, the nation's 11th fastest-growing large city. Austin itself added more people over the period (19,000) than all but seven other U.S. cities. Texas was home to five of the 11 fastest-growing cities between July 1, 2014, and July 1, 2015 (New Braunfels, Frisco and Pearland were the others), and five of the eight that added the most people (Houston, San Antonio, Fort Worth and Dallas were the others).

Denver jumped up two spots in the 20 most populous cities in the United States, displacing Detroit, which fell from 18th to 21st. Seattle moved up two spots to 18th. Denver and Seattle were both among the nation's 11 top numerically gaining cities. Among the 15 fastest-growing cities, the only one outside the South or West was Ankeny, Iowa, a suburb of Des Moines. It grew by 6.5% to 56,764, ranking third.

Other highlights:

  • Seven cities crossed the 100,000 population threshold between 2014 and 2015: Hillsboro, Ore.; Vista, Calif.; Greeley, Colo.; Davie, Fla.; San Angelo, Texas; Jurupa Valley, Calif.; and Renton, Wash.
  • Seven cities crossed the 50,000 population mark for the first time between 2014 and 2015: Poway, Calif.; Bonita Springs, Fla.; Edina, Minn.; Galveston, Texas; Logan, Utah; Leesburg, Va.; and Olympia, Wash. Two cities dropped below this threshold: Troy, N.Y., and Charleston, W.Va.
  • Aside from New York, each of the 15 cities that gained the highest number of people between 2014 and 2015 were in the South or West. Three were in California (Los Angeles, San Diego and San Francisco).
  • Arlington, Texas, rejoined the list of the 50 most populous cities, displacing Cleveland.
  • Among the 50 largest cities in the country, there were several other cities that moved more than one position on the population ranking list since 2014. In addition to Denver and Seattle, Portland, Ore., rose two positons to 26th; Baltimore fell three positions to 29th; Colorado Springs moved up two positions to 40th; and Omaha, Neb., fell two positions to 43rd.
  • Last December, the Census Bureau released state population estimates that showed North Carolina crossed the 10 million population threshold for the first time. Contributing to the state reaching this milestone were Charlotte, which added nearly 18,000 people to make it the 10th largest numerical gainer in the country, and Raleigh added roughly 11,000 people to rank 18th. These two cities accounted for almost 28 percent of the state's population growth.
  • California and Arizona each had two cities on the list of the 15 fastest growing.
  • Mount Pleasant, S.C., was the nation's 10th fastest-growing city. Mount Pleasant is part of the Charleston-North Charleston metro area, one of the nation's 20 fastest growing.
  • Of the 19,505 incorporated places in the United States, around 76 percent (14,804) had fewer than 5,000 people in 2015. Only about 3.9 percent (754) had populations of 50,000 or more.

The top 30 cities by 2015 population. The full list can be accessed here.
The top 30 cities by 2015 population. The full list can be accessed here.