The Wisconsin Surveillance of Autism and Other Developmental Disabilities System (WISADDS) is part of the Autism and Developmental Disabilities Monitoring (ADDM) Network funded through the Centers for Disease Control and Prevention (CDC). WISADDS is a multi-source public health surveillance project that monitors the prevalence of autism spectrums disorders (ASDs), cerebral palsy (CP), and co-occurring intellectual disability (ID) in 8-year-old children within a 10-county area in southeastern Wisconsin.

WISADDS also monitors the prevalence of ASDs among 4-year old children within a 2-county area in south central Wisconsin.

ASD Prevalence, 2016

The information below represents a portion of the results from the 2016 survey of ASD Prevalence in 8-year-old children. A complete factsheet is available here.

  • Number of children identified with ASDs: 579
  • Total prevalence of ASDs: 16.5 per 1,000 (1 in 60)
    • Boys: 1 in 38
    • Girls: 1 in 159
  • Race/Ethnicity
    • White: 1 in 58
    • Black: 1 in 72
    • Hispanic: 1 in 65
    • Asian or Pacific Islander: 1 in 64
  • Documented ASD Diagnosis
    • Half of children identified with ASD were diagnosed by 4 years, 1 month

Site Information

Counties of WISADDSPart of Wisconsin included in ADM highlighted in yellow, 2016.

10 counties: Dane, Green, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Rock, Walworth, and Waukesha

Population of 8-Year-Old Children in Study Area, 2016

  • 8-Year-Old Children: 35,034
  • White: 58%
  • Black: 19%
  • Hispanic: 18%
  • Asian or Pacific Islander: 5%