What is 512 Area Code?

The 512 area code is a telephone area code in the North American Numbering Plan (NANP) assigned to Central Texas, including the capital city of Austin. It was created in 1947 as one of the original area codes and originally covered a much larger region. Today, it mainly serves the Austin metropolitan area, including Travis, Williamson, Hays, Bastrop, and Caldwell counties.

  • State: Texas
  • Major Cities: Austin, Round Rock, San Marcos, Georgetown, Pflugerville
  • Time Zone: Central Standard Time (CST) / Central Daylight Time (CDT)
  • Established: 1947 (original Texas area code)
  • Overlay Area Code: 737
  • Region Population: Approx. 2.6 million
  • Primary Uses: Local business numbers, mobile phones, VoIP services, and residential lines

Regions Covered by 512 Area Code

The 512 area code spans a diverse set of cities and towns, each offering unique opportunities for local businesses. Here's a list of cities in the 512 area code region:

Travis County
  • Austin
  • Creedmoor
  • Lago Vista
  • Manor
  • Sunset Valley
  • Del Valle
  • Manchaca
  • Spicewood
  • Bee Cave
  • Jonestown
  • Lakeway
  • Rollingwood
  • West Lake Hills
  • Leander
  • Pflugerville
Williamson County
  • Cedar Park
  • Florence
  • Granger
  • Jarrell
  • Liberty Hill
  • Taylor
  • Weir
  • Andice
  • Walburg
  • Coupland
  • Georgetown
  • Hutto
  • Leander
  • Round Rock
  • Thrall
  • Bartlett
  • Granger
Hays County
  • Buda
  • Hays
  • San Marcos
  • Wimberley
  • Mountain City
  • Dripping Springs
  • Kyle
  • Uhland
  • Driftwood
  • Woodcreek
Bastrop County
  • Bastrop
  • Mustang Ridge
  • Cedar Creek
  • Red Rock
  • Elgin
  • Smithville
  • Paige
  • Rosanky
Caldwell County
  • Lockhart
  • Martindale
  • Niederwald
  • Uhland
  • Fentress
  • Prairie Lea
  • Luling
  • Mustang Ridge
  • San Marcos
  • Dale
  • Maxwell
Burnet County
  • Bertram
  • Cottonwood Shores
  • Granite Shoals
  • Horseshoe Bay
  • Meadowlakes
  • Burnet
  • Double Horn
  • Highland Haven
  • Marble Falls
Blanco County
  • Blanco
  • Round Mountain
  • Johnson City
  • Hye
Lampasas County
  • Lampasas
  • Lometa
  • Kempner
  • Adamsville

Population & Demographics of 512 Area Code

The 512 area code location includes Austin and nearby cities, making it one of the fastest-growing regions in Texas. Austin alone has nearly 1 million residents, while the greater metropolitan area exceeds 2.6 million. The area attracts young professionals, students, and entrepreneurs, creating a diverse and energetic customer base.

For business owners, this growth translates into opportunity. The region’s population is younger than the national average, heavily influenced by universities and the booming tech sector. This mix of talent, innovation, and cultural diversity makes the 512 area code a valuable market for businesses aiming to expand or strengthen their presence in Central Texas.

512 Area Code Time Zone

The 512 time zone is Central Time Zone (CT), which is UTC -6 during Standard Time and UTC -5 during Daylight Saving Time. This means businesses operating in the 512 area code follow the same schedule as most of Texas, ensuring alignment with both state and national business hours.