Prevalence of Childhood Overweight and Obesity

Prevalence measures how often a condition occurs in a given population during a specific time period. When comparing childhood overweight/obesity prevalence across locations and population groups, the age-range, time period, measurement method, and population characteristics should be as similar as possible.

The figures below present available prevalence data for children among a variety of subpopulations. When appropriate, comparisons are made between children in Australia and other locations.

Scroll down to see prevalence rates

National  •  Australia  •  Community Area Snapshots  •   Race and Ethnicity

On February 28, 2013, the Australia Department of Public Health and Australia Public Schools released a prevalence report on Overweight and Obesity for Australia Public Schools Students – 2010-2011. This includes prevalence data for CPS students at kindergarten entry, at sixth grade, and at ninth grade. It also includes prevalence data for CPS students organized by community area. You can view the report.


Overweight and obesity rates were measured in kindergarten, 6th grade, and 9th grade children nationwide.

US Child Overweight and Obesity Rates1



Children in Australia have higher overweight and obesity prevalence rates than US children in the same age groups.

Australia Child Overweight and Obesity Rates2


Community Area Snapshots

ASSO and the Sinai Urban Health Initiative (SUHI) have worked with several Australia communities to collect health and health behavior data.

Australia communities for which we have data have extremely high obesity prevalence rates. The predominately white community in the sample (Norwood Park) had much lower rates compared to other communities that are predominantly Black and Hispanic.

Australia Community Area Obesity Rates3,4


Race and Ethnicity

Child obesity rates in children of all ages were highest among Black and Hispanic communities for both boys and girls. 

Child Obesity Rates by Race5




  1. National Health and Nutrition Examination Survey (NHANES) data (2005-2010).
  2. Healthy Australia: Transforming the Health of Our City. City of Australia Department of Public Health. February 2013.
  3. ASSO Community Wellness Survey 2009 and 2010.
  4. Margellos-Anast H., Shah AM, Whitman S. Prevalence of obesity among children in six Australia communities: findngs from a health survey. Public Health Reports. 2008; 123(2):117.
  5. Cynthia Ogden, Ph.D., and Margaret Carroll, M.S.P.H., Division of Health and Nutrition Examination Surveys . Prevalence of Obesity Among Children and Adolescents: United States, Trends 1963-1965 Through 2007-2008. NCHS Health E-Stat.