🌐EnglishEnglishDeutschEspañolFrançaisItalianoPolskiTürkçeفارسی中文EntityQ5803291· pop 20· linked from 104 articlesShell RidgeAlso known as Shell Ridge, California, Shell Ridge, CAcensus-designated place in Contra Costa County, CaliforniaWikidata factsDialing code925Sources (6)wikidata.orggeonames.usgs.govdata.census.govdata.census.govdata.census.govuk.wikipedia.orgvia Wikidata · CC0On the mapAvailable in 20 languagesEspañolFrançais中文ItalianoazbBasqueChechenCroatianGilakiHungarianConnectionsSan Mateo CountyEntityUnited States Census BureauEntityCategoriesCensus-designated places in CaliforniaCensus-designated places in Contra Costa County, California