Where was Ruby Gentry filmed?

1952 film

Ruby Gentry (1952) was filmed in San Luis Obispo, San Marino, Morro Bay, Paso Robles, Pismo Beach and Willow Creek, 6 places named in its Wikipedia article's Filming section, in the United States. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data

Places per Wikipedia's Filming section

Wikipedia’s Filming section names 6 places. Each links to the sentence that says so.

Also shot in these places