Women in the United States live an average of 81.4 years, based on 2024 data from the CDC. That figure rose slightly from 81.1 in 2023, continuing a rebound after the dip caused by the COVID-19 pandemic. Globally, women consistently outlive men by several years, a pattern that holds across nearly every country on earth.
U.S. Life Expectancy for Women
The current average of 81.4 years represents total life expectancy at birth for American women. If you’ve already reached 65, the numbers shift in your favor: a 65-year-old woman in the U.S. can expect to live another 20.8 years on average, putting her around 85 to 86.
These are averages, which means plenty of women live well beyond them. The U.S. centenarian population grew by 50% between 2010 and 2020, and in 2020, nearly 79% of Americans who reached age 100 were women.
Why Women Live Longer Than Men
The gap between male and female life expectancy is not just cultural or behavioral. It’s rooted in biology. Two mechanisms stand out in the research: the double X chromosome and the protective effects of estrogen.
Women carry two X chromosomes, while men carry one X and one Y. The X chromosome contains important genetic information, including segments that influence the immune system. If a gene on one X chromosome is defective, a woman’s second X can compensate. Men don’t have that backup. The Y chromosome also tends to accumulate mutations more readily than the X, which compounds the disadvantage over a lifetime.
Estrogen plays a role too. Men develop heart disease more often and at younger ages than women, and lower estrogen levels are thought to be part of the reason. Estrogen has protective effects on blood vessels and cholesterol levels, giving premenopausal women a cardiovascular advantage that narrows after menopause but never fully disappears in population-level data.
Living Longer Doesn’t Always Mean Living Healthier
One of the more striking findings in longevity research is the gap between how long women live and how long they live in good health. The global average gap between total lifespan and “healthspan,” the years spent free of serious illness or disability, was 9.6 years in 2019. For women, that gap is about 2.4 years wider than it is for men.
In practical terms, this means that while women live longer overall, they spend more of those extra years managing chronic conditions, reduced mobility, or other health challenges. A woman who lives to 82 might spend her last 11 or 12 years dealing with significant health limitations, compared to roughly 9 years for a man who lives to 76. This disparity shows up consistently across 183 countries surveyed by researchers at the Mayo Clinic.
How Race and Ethnicity Affect the Numbers
The 81.4-year average is a national figure that masks significant variation. Life expectancy for women in the U.S. differs substantially depending on race, ethnicity, geography, and income. Asian American women, for instance, tend to have the highest life expectancy of any demographic group in the country, while Black and Native American women have historically had shorter life expectancies, driven by disparities in healthcare access, chronic disease rates, and environmental factors. These gaps narrowed slightly in recent years but remain meaningful.
Where Women Live the Longest
The U.S. does not rank near the top globally for female life expectancy. Women in Japan, South Korea, Spain, Switzerland, and several other countries routinely live into their mid-to-late 80s on average. Japan has long held one of the top spots, with female life expectancy consistently above 87 years. These countries tend to share certain features: universal healthcare, diets lower in processed food, strong social networks for older adults, and high levels of physical activity in daily life.
Projections for 2050
Female life expectancy is expected to keep climbing. The Global Burden of Disease Study, published in The Lancet, forecasts that women worldwide will gain an additional 4.2 years of life expectancy between 2022 and 2050. Men are projected to gain 4.9 years over the same period, which would slightly narrow the gender gap without closing it. These projections account for ongoing threats from metabolic diseases like obesity and diabetes, environmental risks, and geopolitical instability, all of which could slow progress in certain regions.
The gains are expected to come primarily from continued reductions in infectious disease mortality in lower-income countries and better management of chronic diseases in wealthier ones. For women in the U.S., reaching an average life expectancy in the mid-80s by 2050 is a reasonable expectation if current trends hold.