The average weight for an adult woman in the United States is approximately 170 pounds, based on the most recent CDC data collected from 2021 to 2023. That number has climbed steadily over the past six decades, up from about 140 pounds in 1960. But “average” and “healthy” aren’t the same thing, and your ideal weight depends heavily on your height, age, and body composition.
How Average Weight Has Changed Over Time
American women weigh significantly more today than they did a generation ago. In 1960, the average woman aged 20 to 74 weighed 140.2 pounds. By 2002, that number had jumped to 164.3 pounds, a gain of more than 24 pounds in roughly four decades. The trend has continued upward since then, with current estimates around 170 pounds.
The increase hasn’t been uniform across age groups. Women aged 20 to 29 gained nearly 29 pounds on average between 1960 and 2002, the largest jump of any age bracket. Women aged 40 to 49 gained about 25.5 pounds, while women aged 60 to 74 gained around 17.5 pounds over the same period. Average height also increased slightly during this time, from just over 5’3″ to 5’4″, but not nearly enough to account for the weight gain.
Healthy Weight Ranges by Height
A single “average” number doesn’t tell you much about your own body. A 5’0″ woman and a 5’10” woman have very different healthy ranges. The National Heart, Lung, and Blood Institute defines a healthy weight as a BMI between roughly 19 and 24, which translates to these ranges:
- 4’10”: 91 to 119 lbs
- 5’0″: 97 to 128 lbs
- 5’2″: 104 to 136 lbs
- 5’4″: 110 to 145 lbs
- 5’6″: 118 to 155 lbs
- 5’8″: 125 to 164 lbs
- 5’10”: 132 to 174 lbs
- 6’0″: 140 to 184 lbs
For the average-height American woman at 5’4″, a healthy weight falls between 110 and 145 pounds. The current national average of roughly 170 pounds at that height corresponds to a BMI around 29, which sits in the overweight category and close to the obesity threshold of 30. This is one reason public health agencies track these trends so closely.
How Race and Ethnicity Factor In
Average weight varies meaningfully across racial and ethnic groups in the U.S. NHANES survey data found that non-Hispanic Black women had the highest average weight at 182.4 pounds, with a mean BMI of 31.1. Non-Hispanic white women averaged 161.7 pounds (BMI 27.6), and Mexican American women averaged 157.1 pounds (BMI 29.0). These differences reflect a complex mix of genetics, socioeconomic factors, food access, and cultural norms around diet and body size.
Body Fat Changes With Age
Weight alone doesn’t capture what’s happening inside your body. Women naturally carry more body fat than men at every age, and the percentage rises as you get older. CDC data from body scans of over 22,000 people found that average body fat in women ranged from 32% in girls aged 8 to 11 up to 42.4% in women aged 60 to 79. This gradual increase happens partly because muscle mass declines with age while fat tissue accumulates, even if the number on the scale stays relatively stable.
This is why two women who weigh exactly the same can look and feel very different. A 155-pound woman with more muscle mass will generally have a smaller waist, better metabolic health markers, and lower risk of chronic disease than a 155-pound woman carrying more of that weight as fat.
Waist Size as a Health Indicator
Where you carry weight matters as much as how much you weigh. The average waist circumference for American women is 38.5 inches, according to the most recent CDC data. Fat stored around the midsection, sometimes called visceral fat, wraps around internal organs and is more metabolically active than fat stored in the hips or thighs. A waist circumference above 35 inches in women is generally associated with higher risk for heart disease, type 2 diabetes, and other metabolic conditions.
This makes waist measurement a useful complement to the scale. You can track it at home with a simple tape measure placed at the top of your hip bones, and it often gives you a better snapshot of health risk than weight or BMI alone.
Why BMI Has Limitations
BMI is the most common tool for categorizing weight because it’s easy to calculate: just your weight in kilograms divided by your height in meters squared. The WHO classifies a BMI under 18.5 as underweight, 18.5 to 24.9 as normal, 25 to 29.9 as overweight, and 30 or above as obese. These cutoffs are useful at the population level for tracking trends, but they have real blind spots for individuals.
BMI doesn’t distinguish between muscle and fat, doesn’t account for bone density, and doesn’t reflect where fat is distributed. A muscular woman can register as overweight by BMI while being in excellent health. Conversely, a woman with a “normal” BMI but very little muscle and excess belly fat may face higher health risks than her number suggests. For a more complete picture, combining BMI with waist circumference and, if available, a body composition measurement gives you far more useful information than any single number.