That's the most ever, and a 0.8 increase over 2012.
Local leaders say it's no surprise because L.A. is better than it's ever been.
"The oceans and beaches are cleaner, the weather is awesome, the clubs are jammed, the restaurants are legendary, the Dodgers are back," said Police Commission President Steve Soboroff.
L.A. Mayor Eric Garcetti announced the 2013 record set for tourism during a news conference at the Space Shuttle Endeavour exhibit at the California Science Center in Exposition Park Monday.
"If you're not lucky enough to be from L.A., L.A. is your second home, for everybody, around the world - this is everyone's second home," said Garcetti.
Officials said 36 million domestic tourists and 6.2 million international tourists visited Los Angeles in 2013, boosting the city's economy.
"It means billions of dollars have been injected into our economy, that means millions of jobs, that means dollars that are spent in our stores, in our restaurants, in our hotels, in our attractions here in L.A.," said Garcetti.
Attractions like Disneyland, Universal Studios, Venice Beach, and the Space Shuttle Endeavour exhibit drew people from all over the world.
"More than 2.7 million people, last year, went through these doors to see this shuttle - a made in L.A. product," said Garcetti.
Tourism also creates thousands of jobs. Local leaders hope this industry continues to grow in years to come with the addition of more attractions, luxurious hotels, and, with any luck, a football team.
Garcetti says an NFL football team in Los Angeles is still in the works, but will undoubtedly boost tourism.