Celina, Texas doesn't look like most boomtowns. The U.S. Census Bureau named it the fastest-growing city in the country after its population jumped more than 24% in 2025, and it has nearly tripled since 2020, from 6,000 residents in 2010 to over 64,000 today. Yet walk through the compact downtown square and you'll still find the same small-town energy the city has had since its founding in the 1870s.

Celina (pronounced suh-LYE-nuh, if you want to sound local) sits about 40 miles north of Dallas, part of a suburban boom in which four of the five fastest-growing U.S. cities last year were Dallas suburbs. What sets it apart is how seriously it takes community life. Nearly every month brings a public event downtown, and the calendar is stacked enough that day-trippers from Dallas can plan a visit around almost any season.

The headline act is Halloween. A Collin County judge has officially proclaimed Celina the "Halloween Capital of North Texas," and every October the downtown square gets a full spooky-season makeover for Beware! of the Square, held the Saturday before Halloween. The tradition only started in 2019 but has grown fast: think haunted house, trick-or-treating, jack-o'-lanterns, live music, sideshow performers, carnival rides, an outdoor movie screening, vendors, and the occasional flash-mob "Thriller" dance — plus a themed blood drive. It's free, and it skews family-friendly with a creepy edge.

The rest of the year keeps pace. December brings Christmas on the Square, a one-night kickoff to a month of holiday events complete with Santa, live reindeer, and a tree lighting. May's Cajun Fest fills the air with zydeco and the smell of crawfish and gumbo, honoring French settlers who arrived in Texas in 1770. October adds a hometown Oktoberfest with German beer, food, and music, while recurring events like Friday night markets, Touch-A-Truck for kids, and outdoor movie nights at Old Celina Park round out the schedule.

For travellers, Celina works best as an easy escape from Dallas — close enough for a day trip, distinctive enough to justify an overnight during a festival weekend. Halloween fans wanting more film history can drive roughly 250 miles south to Bastrop, where the 1974 classic "The Texas Chain Saw Massacre" was shot. Anyone curious about how fast-growing Texas suburbs are handling their own success should put this one on the list. Credit: Islands.