Walk-ins are welcome, but appointments are encouraged because it reduces wait time, said LifeServe Communications Specialist Allison Hay.
Eligible blood donors must be at least 16 years old, should weigh at least 120 pounds and should be in general good health.
LifeServe Blood Center was created in 2010 when the Blood Center of Iowa merged with Siouxland Community Blood Bank.
Hay said the blood center provides blood and blood products to more than 90 hospitals in locations across Iowa, Nebraska and South Dakota.
"LifeServe Blood Center relies on more than 3,000 volunteer blood donors each week to ensure an adequate blood supply for area hospitals and patients," she said. "Giving blood is safe, simple and it saves lives."