California State Route 91
state highway in Los Angeles, Orange, and Riverside counties in California, United States
State Route 91 (SR 91) is a major east–west state highway in the U.S. state of California that serves several regions of the Greater Los Angeles urban area. A freeway throughout its entire length, it officially runs from Vermont Avenue in Gardena, just west of the junction with the Harbor Freeway (Interstate 110, I-110), east to Riverside at the junction with the Pomona (SR 60 west of SR 91) and Moreno Valley (SR 60 and I-215 east of SR 91) freeways. SR 91 is also known colloquially as "the 91" to Southern California residents.
Though signs along Artesia Boulevard from Vermont Avenue west to Pacific Coast Highway (SR 1) in Hermosa Beach continue to mark it as part of SR 91, control of this segment of the highway was relinquished to local jurisdictions in 2003 and are thus no longer officially part of the state highway system.
SR 91 inherited its route number from the mostly decommissioned U.S. Route 91 (US 91), which passed through the Inland Empire in a northeasterly direction on its way to Las Vegas, Salt Lake City, and points beyond. Those segments of US 91 are now parallel to, or have been replaced altogether by, I-15.
Route description
Route 91 is defined in section 391, subdivision (a), of the California Streets and Highways Code, and that the highway is "Vermont Avenue at the eastern city limits of Gardena to Route 215 in Riverside via Santa Ana Canyon". Control of the former western segment of Route 91 to Hermosa Beach was relinquished by the state to local jurisdictions, and subdivision (b) mandates that it is no longer eligible to be re-adopted as a state highway.
From the Harbor Freeway (I-110) to its interchange with the Long Beach Freeway (I-710) in northern Long Beach, SR 91 is named the Gardena Freeway. Between the Long Beach Freeway and its interchange with the Santa Ana Freeway (I-5) in Buena Park, it is named the Artesia Freeway.
“California State Route 91” enters the record as state highway in Los Angeles, Orange, and Riverside counties in California, United States. Crown Archives preserves that source wording while asking what California, State and Route can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 13, 2026. The linked authority identifier is Q624356. 1 of 1 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2003.
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This entry incorporates text from “California State Route 91” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.