Leukemia - Chronic Lymphocytic - CLL: Statistics

Approved by the Cancer.Net Editorial Board, 01/2022

ON THIS PAGE: You will find information about the number of people who are diagnosed with chronic lymphocytic leukemia (CLL) each year. You will also read general information on surviving the disease. Remember, survival rates depend on several factors. Use the menu to see other pages. 

CLL makes up 25% of all new leukemia cases. This year, an estimated 20,160 people of all ages (12,630 men and boys and 7,530 women and girls) in the United States will be diagnosed with CLL. While it can occur at any age, the average age at diagnosis is around 70. CLL is uncommon in people younger than 40 and is very rare in children. CLL is the most common type of leukemia in adults older than 19, accounting for 38% of all leukemia diagnoses.

It is estimated that 4,410 deaths (2,730 men and 1,680 women) from this disease will occur in the United States this year.

The survival rate for people with CLL varies widely according to the stage of the disease (see Stages). The 5-year survival rate tells you what percent of people live at least 5 years after the cancer is found. Percent means how many out of 100. The 5-year survival rate for people age 20 and older with CLL is 87%.  

It is important to remember that statistics on the survival rates for people with CLL are an estimate. The estimate comes from annual data based on the number of people with this cancer in the United States. Also, experts measure the survival statistics every 5 years. This means the estimate may not reflect the results of advancements in how CLL is diagnosed or treated from the last 5 years. Talk with your doctor if you have any questions about this information. Learn more about understanding statistics

Statistics adapted from the American Cancer Society's (ACS) publication Cancer Facts & Figures 2022 and the ACS website. (Sources accessed January 2022.)   

The next section in this guide is Medical Illustrations. It offers drawings of body parts often affected by CLL. Use the menu to choose a different section to read in this guide.