Background: This study examined the attitudes, knowledge and experiences of practitioners in social services and child welfare working with mothers with intellectual disability. Method: The authors used a national survey, which was completed by 329 participants. Descriptive statistics and frequency tables were generated, and the associations between variables and differences between various subgroups of the sample were made. The open questions were analysed using the processes involved in content analysis. Results: The findings indicated that the participants had limited knowledge of available supports and services for mothers with intellectual disability. Furthermore, many participants believed that mothers with intellectual disability should have an abortion should they become pregnant. The findings show practitioners' stereotyped attitudes towards mothers with intellectual disability. Conclusions: Workers in the area of social services and child welfare need access to training and professional development in the area of supporting mothers with intellectual disability.