Metro operates two subway lines - the Red Line, which runs from North Hollywood to Downtown LA along Vermont Avenue, and the Purple Line, which runs along Wilshire Boulevard, both of which run near or through Koreatown. The neighborhood is served primarily by the Purple Line Wilshire/Normandie station, but there are two other stops as well.

In addition to the two subway lines, Metro operates numerous Express, Rapid and Local bus lines through the district. Rapid lines include the 710 Crenshaw, 720 Wilshire, 728 Olympic, 754 Vermont, and 757 Western. Local lines include the 207 Western, 20 Wilshire/Westwood, 204 Vermont and 206 Normandie. Many MTA bus lines in Koreatown offer 24-hour service.

The LADOT operates three district-to-district DASH routes, one Commuter Express line and Cityride. Koreatown is served by DASH Hollywood/Wilshire line, and Dash Koreatown. The DASH lines are meant for local neighborhood transportation; their routes are short in comparison to MTA lines. All DASH service ends at 7pm weekdays and on the weekend, only Dash Koreatown operates, ending the service at 6pm. All Dash fares cost 50 cents (Fare has risen). Commuter Express line 534 Century City provides weekday service while Cityride offers door to door dial-a-ride service for the elderly and disabled.

Foothill Transit services one express line in Koreatown, line 481. It operates only during weekday rush hours and runs from Wilshire and St. Andrews to the El Monte Bus Station.