Data about the numbers of potential marrow donors and donated umbilical cord blood units listed on the donor registry of the C.W. Bill Young Cell Transplantation Program (CWBYCTP), including the National Cord Blood Inventory, are reported annually.
One of the CWBYCTP goal is to increase the numbers of marrow donors and cord blood units on the CWBYCTP donor registry. The program seeks to help more people who have difficulty finding a matching donor by placing special emphasis on registering marrow donors and collecting cord blood units from these genetically diverse communities:
- American Indian or Alaska Native
- Asian
- Black or African American
- Hispanic or Latino
- Native Hawaiian or Other Pacific Islander
The growth in numbers of marrow donors and cord blood units, plus the genetic diversity of the registry, are improving all patients' chances of finding the match they need.

The U.S. registry contains more than 246,500 available cord blood units. This total includes more than 122,500 units from the National Cord Blood Inventory (NCBI), with 3,700 NCBI units added in 2024.
Diversity of Cord Blood Units on the NMDPSM 2024

More than 130,000 cord blood units on the U.S. registry in 2024 were from babies whose parents identify as:
- American Indian or Alaska Native
- Asian
- Black or African American
- Hispanic or Latino
- Native Hawaiian or Other Pacific Islander
- More than one race
Diversity of U.S. Adult Donors on the NMDPSM 2024

Nearly 3.8 million U.S. volunteers on the registry in 2024 were from these genetically diverse communities:
- American Indian or Alaska Native
- Asian
- Black or African American
- Hispanic or Latino
- Native Hawaiian or Other Pacific Islander
- More than one race
Race/Ethnicity | Volunteer Marrow Donors |
---|---|
American Indian or Alaska Native | More than 135,000 (1%) |
Asian | More than 899,000 (10%) |
Black or African American | More than 757,000 (8%) |
Hispanic or Latino | More than 1.2 million (13%) |
Two or more races | More than 729,000 (8%) |
White, non-Hispanic or Latino | More than 5.2 million (55%) |
Note: May not add up to 100% due to Unknown, Other, and Declined to answer.
Race/Ethnicity | Cord Blood Units |
---|---|
American Indian or Alaska Native | More than 900 (<1%) |
Asian | More than 12,000 (5%) |
Black or African American | More than 26,000 (11%) |
Hispanic or Latino | More than 59,000 (24%) |
Two or more races | More than 30,000 (12%) |
White, non-Hispanic or Latino | More than 110,000 (45%) |
Note: May not add up to 100% due to Unknown, Other, and Declined to answer.
Successful outcomes depend on a matching donor
Learn more about the need for donors.