The South and West continue to have the fastest-growing cities in the United States, according to new population estimates for cities and towns released by the U.S. Census Bureau. Among the 15 cities or towns with the largest numeric gains between 2017 and 2018, eight were in the South, six were in the West, and one was in the Midwest. Phoenix, Ariz., was at the top of the list with an increase of 25,288 people. Rounding out the top five with the largest population increases were San Antonio, Texas (20,824); Fort Worth, Texas (19,552); Seattle, Wash. (15,354); and Charlotte, N.C. (13,151). Cities in the South that experienced a surge in population growth were Austin, Texas (12,504); Jacksonville, Fla. (12,153); Frisco, Texas (10,884); McKinney, Texas (9,888); and Miami, Fla. (8,884). Cities in the West were San Diego, Calif. (11,549); Denver, Colo. (11,053); Henderson, Nev. (10,759); and Las Vegas, Nev. (9,016). Columbus, Ohio (10,770), was the only city from the Midwest on the top 15 list. Ten incorporated places exceeded the 50,000 population mark in 2018 — seven in the South, two in the West, and one in the Midwest. These cities and towns were Madison, Ala. (50,440); Maricopa, Ariz. (50,024); Bentonville, Ark. (51,111); Newark, Ohio (50,029); Stillwater, Okla. (50,391); Smyrna, Tenn. (50,775); Leander, Texas (56,111); Little Elm, Texas (50,314); Wylie, Texas (51,585); and Lacey, Wash. (50,718). Three cities crossed the 100,000 population mark in 2018. They were Vacaville, Calif. (100,154); San Angelo, Texas (100,215); and Kenosha, Wis. (100,164).