El Segundo Boulevard is a west-east thoroughfare in Los Angeles County.

El Segundo Boulevard begins as a minor street in Lynwood.

When it runs through Compton, Willowbrook, Gardena, Hawthorne, and El Segundo, it is in the same position 128th Street would be for much of its existence.

[1] El Segundo Boulevard was widened to accommodate six lanes of traffic, with paved shoulders, curbs, and gutters, in the late 1950s,[1][2] to better serve Los Angeles International Airport and the aerospace corporations based near there.

[3] The intersection of Compton Avenue and El Segundo Boulevard was reconstructed and widened, with medians and traffic signal improvements, in the early 1970s.