New research released by the Centers for Disease Control and Prevention reveals that a growing number of children across the United States are being diagnosed with autism and other developmental disabilities. The findings, which paint a comprehensive picture of shifting public health trends among America’s youth, indicate that approximately one in five children are now reported by their parents to have a developmental disability.
Between 2019 and 2024, the proportion of parents reporting that their child had been diagnosed with a developmental disability climbed significantly, moving from 16.7 percent up to 20.5 percent. The data underscores a steady upward trajectory in parent-reported diagnoses across a variety of medical and educational conditions that impact childhood development, learning, and behavior.
The findings were published recently in the medical journal Pediatrics. They are derived from an extensive analysis of data collected through the National Health Interview Survey, an annual government questionnaire that gathers vital health and healthcare utilization information from households across the nation.
As part of the standardized survey process, participating parents were asked whether they had ever been informed by a healthcare professional that their child had a developmental disability. This category explicitly included conditions such as autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD), intellectual disability, or any other specific developmental delay. Additionally, parents were asked if they had ever been told by a qualified school representative or health professional that their child lived with a learning disability.
For the purposes of the study, researchers established a clear criterion: children were classified as having "any developmental disability" if their parents indicated that they lived with any one of these five distinct conditions.
When looking broadly at children between the ages of 3 and 17, the prevalence of these conditions rose across nearly every measured category during the study period. While the upward movement was broad, the researchers noted that the increases were substantial for almost every category, with the sole exception of intellectual disability, which saw a much smaller change.
Autism spectrum disorder alone experienced a striking surge, jumping by more than 42 percent over the study period. The research team noted that this growth was particularly sizable among specific demographic segments that have historically seen different diagnostic trajectories, including young children between the ages of 3 and 5, girls, children living outside of major metropolitan areas, and kids from low-income families.
At the same time, other common childhood developmental and behavioral conditions also became more widely reported by families. The number of parents reporting that their child had been diagnosed with ADHD climbed by 26 percent. Meanwhile, learning disabilities and other unspecified developmental delays each grew by approximately 16 percent. Intellectual disability, by comparison, experienced a more modest rise, increasing by a little more than 6 percent.
When synthesizing the data across all measured categories, the researchers concluded that the overall percentage of children diagnosed with developmental disabilities increased significantly during the years studied. This upward trend culminated in an estimated 1 in 5 children ages 3 to 17 receiving a diagnosis by the time the 2023-2024 survey cycles were conducted and evaluated.
Benjamin Zablotsky, a statistician at the CDC’s National Center for Health Statistics who led the study, pointed out that the notable uptick observed among certain groups of children—particularly among very young children—reveals patterns that had not been prominently featured in previous surveillance reports. Zablotsky and his fellow researchers suggest that these evolving figures reflect changes in how and when children are evaluated in communities across the country.
"We believe these new increases could be related to earlier detection and awareness," Zablotsky said, explaining how shifting clinical practices and public health messaging may be influencing the numbers.
Public health experts and sociologists unaffiliated with the research have also weighed in on the implications of the new CDC data. Scott Landes, a sociology professor at Syracuse University who was not involved in the study, emphasized that the reported rise in prevalence should be interpreted through a positive lens regarding healthcare access and public health outreach.
"Research suggests that better screening, greater awareness and reduced stigma explain at least part of the increase, which means that more children are being identified and connected to services they previously would have missed," Landes said. "A higher reported prevalence rate by parents is best understood, at least in part, as progress in finding and serving disabled children who were always there but were not receiving needed services."
As healthcare providers, educators, and families continue to navigate the evolving landscape of childhood development, the new data from the CDC highlights a continuing shift in how developmental disabilities are recognized, diagnosed, and addressed across the United States.
