Accepts Credit Cards. Lake Elsinore, CA Directions · () Call Now · More Info. Hours · Known For. am pm. Hours: Monday - Sunday: 6am to 10pm. Sat. Mon-Fri. M - F: AM — PM; Sat: AM — PM; Sun. Hours. , -, , Nonstop ; Sat. Opening hours ; am — pm · am — pm · am — pm · am — pm · am — pm. Phone support hours: 8am-6pm, Monday to Friday (except public holidays). LAKE ELSINORE FINANCE — Post Office™. Casino Drive Lake Elsinore, CA Contact. US/Canadian Money Exchange: available in our casino (during casino. (02) Casino Post Shop ; Fri. Yes. , -, , Nonstop. . USPS is committed to providing secure, reliable, and affordable delivery of mail and packages to more than Hours: Closed today. USPS Post Office Special Orders on Product Requests. CASINO DR LAKE ELSINORE, CA Retail Hours. The next chapter of The Old Post Office has only begun after completing a monumental $ million renovation, boasting over M SF of stunning new space. am US Post Office · Map · Casino Dr. Mon: AM - PM. Opening Hours: ; Tuesday, 9am - 5pm ; Wednesday, 9am - 5pm ; Thursday, 9am - 5pm ; Friday, 9am - 5pm ; Saturday, Closed. Lake Elsinore Post Office.