Leukemia - B-cell Prolymphocytic Leukemia and Hairy Cell Leukemia: Statistics

Approved by the Cancer.Net Editorial Board, 01/2021

ON THIS PAGE: You will find information about the number of people who are diagnosed with leukemia 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.

This year, an estimated 61,090 people of all ages (35,530 men and boys and 25,560 women and girls) in the United States will be diagnosed with leukemia.

CLL is the most common type of leukemia in adults, accounting for 38% of cases. An estimated 21,250 people (13,040 men and boys and 8,210 women and girls) in the United States will be diagnosed with CLL this year, though CLL is rare in children.

It is estimated that 4,320 deaths (2,620 men and 1,700 women) from CLL will occur this year.

There are no current estimates for how many people develop PLL. Around 700 people are diagnosed with HCL each year.

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 86%. 

It is important to remember that statistics on the survival rates for people with leukemia are an estimate. The estimate comes from annual data based on the number of people with leukemia in the United States. Also, experts measure the survival statistics every 5 years. So the estimate may not show the results of better diagnosis or treatment available for less than 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 2021, and the ACS website (sources accessed January 2021).

The next section in this guide is Risk Factors. It explains what factors may increase the chance of developing leukemia. Use the menu to choose a different section to read in this guide.