An estimated 2.3 million women worldwide are diagnosed with breast cancer each year, making it the most common cancer in women globally. In the United States alone, roughly 321,910 women and 2,670 men will receive a breast cancer diagnosis in 2026. But the number of people “affected” extends well beyond new diagnoses: about 4.3 million women in the U.S. are currently living with a history of invasive breast cancer, and that number is projected to reach 5.3 million by 2035.
New Cases Each Year
Globally, the World Health Organization recorded approximately 2.3 million new female breast cancer cases and 670,000 deaths in 2022. Breast cancer is now the second most common cancer diagnosis in the United States behind prostate cancer, with more than 324,000 combined cases expected annually among men and women. These figures count only new invasive diagnoses, not the much larger pool of people already living with or beyond the disease.
Who Gets Breast Cancer
Breast cancer does not affect all populations equally. White women have the highest overall incidence rate at roughly 187 cases per 100,000 women, followed by Black women at about 174 per 100,000. Asian and Pacific Islander women have seen the sharpest rise in incidence over the past two decades, climbing from 122 to nearly 144 per 100,000 between 1999 and 2018. Hispanic women have the lowest rate at around 134 per 100,000.
These incidence numbers tell only part of the story. Black women are diagnosed at a lower rate than white women yet die from breast cancer at significantly higher rates, a gap driven by later-stage diagnoses, differences in tumor biology (more aggressive subtypes are more common), and unequal access to timely treatment.
Though it is rare, men also develop breast cancer. About 2,670 men are expected to be diagnosed in the U.S. in 2026. Male breast cancer accounts for less than 1% of all cases, but it is often caught later because most men are unaware it can happen to them.
How Many People Are Living With It
The 4.3 million women currently living with a breast cancer history in the U.S. include people at every point in the journey: those in active treatment, those in remission, and long-term survivors who were diagnosed decades ago. Breast cancer is the single most prevalent cancer among American women, outnumbering every other type.
Within that larger group, an estimated 155,000 women are living specifically with metastatic breast cancer, meaning the disease has spread beyond the breast to other organs. About 28% of those were diagnosed at stage IV from the start, while the remaining 72% were initially diagnosed with earlier-stage disease that later progressed. Metastatic breast cancer is treatable but not curable, and people living with it require ongoing therapy.
Survival by Stage
Stage at diagnosis is the single biggest factor in breast cancer survival. National Cancer Institute data from 2016 to 2022 shows a clear pattern:
- Localized (cancer is only in the breast): 100% five-year relative survival
- Regional (cancer has reached nearby lymph nodes): 87.5% five-year relative survival
- Distant (cancer has spread to other parts of the body): 33.8% five-year relative survival
The 100% survival figure for localized disease is remarkable and reflects how effective treatment has become when the cancer is caught early. Most breast cancers are found at this stage, largely because of routine mammography screening. The steep drop to 33.8% for distant disease underscores why the roughly 155,000 women living with metastatic breast cancer face a very different prognosis.
The Financial Toll
Breast cancer carries the highest treatment cost of any cancer in the United States. Total annual medical spending reached $29.8 billion in 2020, split between $26.2 billion for medical services and $3.5 billion for prescription drugs. That figure represented 14% of all cancer treatment costs nationwide. For individual patients, costs vary enormously depending on stage, treatment type, and insurance coverage, but breast cancer’s financial weight on the healthcare system reflects just how many people it touches at any given time.
Why the Numbers Keep Growing
The total number of people affected by breast cancer is rising for two reasons that pull in opposite directions. First, incidence is gradually increasing in several populations, particularly among Asian and Pacific Islander women and younger women under 50. The causes are not fully settled but likely involve shifts in reproductive patterns, obesity rates, and improved detection. Second, and more optimistically, survival has improved so dramatically that more people are living longer after diagnosis. When five-year survival for localized disease is effectively 100%, the pool of survivors grows every year. The projected jump from 4.3 million to 5.3 million U.S. survivors over the next decade is driven largely by people living well beyond their diagnosis, not just by more people getting sick.