Hours Of Operations Mary Kay Cosmetics Nebraska South Sioux City 68776 Mary Kay Cosmetics Hours of Operation and Location in South Sioux City, NE 68776 4.5 - 85 votes 504 E 32nd St, South Sioux City, NE 68776 (402) 494-3911 Get Directions Mary Kay Cosmetics Hours Category: Beauty & Health Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore South Sioux CityView More Apparel CarharttNew York & CompanyHurleyExpressNew York Recommend For You Rose Nails J & J Nails Savvy Salon & Spa Rose Nail J & J Nail Salon C Salon Centric Ulta Beauty C & A Incorporated Shear Excellence