List of I Party Stores in Rialto, CA Outlet Note Regular Brands I Party California Rialto Rating 4.5 based on 63 votes Official Website http://www.partycity.com/ Products Art Entertainment Party Rentals NameAddressPhone Name/Address/Phone I Party outlet - Rialto 519 W Foothill Blvd, #B (909) 820-3445 People Also Viewed