The most commonly transplanted organs are the heart, the liver, the lung, and the kidney.
According to the Mayo Clinic:
• Heart transplants have an 88% survival rate after one year and a 75% survival rate after five years.
* Liver transplants have about a 70% survival rate after five years.
• Lung transplants have about a 50% survival rate after five years.
Also according to the Mayo Clinic:
• Kidney transplants have a 4% failure rate after one year when the kidney comes from a deceased donor and a 3% failure rate after one year when the kidney comes from a living donor. This increases to a 21% failure rate after five years when the kidney comes from a deceased donor and a 14% failure rate after five years when the kidney comes from a living donor.
Note that one can survive without a kidney transplant with the help of a dialysis machine. This is why kidney transplants are usually discussed in terms of failure/rejection instead of in terms of survival.