I would guess that you are talking about the Orange County in California and not the ones in New Jersey, North Carolina, Florida etc.
South Coast Plaza in Costa Mesa has lots of fragrance counters. Here is the website:
All the designers have boutiques there - there is a Chanel Boutique. There is a Sephora. There is Jo Malone, Kiehls, Crabtree and Evelyn, Fresh and more.