Rock music fans rejoice: Aftershock Festival 2025 is in full swing.

The annual event has become one of Sacramento's cornerstone attractions. Work has been underway to prepare Discovery Park for the massive festival, which has been averaging more than 160,000 attendees each year.

Since starting in 2012 with just 11,000 attendees, Aftershock has grown into the largest event in the Sacramento area, generating more than $35 million for the local economy. 

"It's probably the largest event Sacramento holds every year," said Mike Testa, the president and CEO of Visit Sacramento. "From hotel room night production, it is certainly the largest. It fills hotel rooms and Airbnbs from Davis to Lincoln. Our friends in Placer County tell me their occupancy goes up. This is definitely one that benefits a lot of people."

A lineup of more than 115 bands is set to play at this year's edition of the festival, including one of Sacramento's best-known bands.

Here's what to know for the weekend.

Aftershock headliners

Pop punk legends Blink-182 got opening night honors on Thursday. Sacramento's own Deftones headline Friday night, while metal icons Korn get Saturday night.

Bring the Horizon, Rob Zombie, Flyleaf and others close the festival on Sunday.

Discovery Park parking

The festival takes place at Sacramento's Discovery Park, a scenic venue on the American River Parkway.

Attendees should expect limited paid parking options in the lots surrounding Discovery Park, Aftershock organizers say. The festival is urging people to consider buying park & ride shuttle passes or to take SacRT.

Are Aftershock tickets still available?

Four-day general admission packs are sold out, but single-day general admission passes are still available for all days. Aftershock's website shows that those single-day tickets start at $229.99.