A person convicted of sex offences (PCSO) is confronted with several challenges upon re-entry to the community, often facing difficulties accessing housing and employment, and experiencing stigmatisation, hostility and harassment from community members. Given the importance of community support for successful reintegration, we examined differences in public ( N = 117) attitudes toward a PCSO against a child (PCSO-C) with mental illness or intellectual disability compared to a neurotypical PCSO-C in an online survey. At present, differences in attitudes towards these groups has not been explored. Results indicated the PCSO-Cs with intellectual disability or mental illness were seen to pose less risk of sexual reoffending and prompted higher levels of reintegration comfort than the neurotypical PCSO-C. Participants’ prior personal exposure to mental illness or intellectual disability was unrelated to attitudes, but those who believed that PCSOs in general have a low capacity for change attributed greater risk of sexual reoffending, greater risk of future harm to children, higher levels of blame and lower reintegration comfort, regardless of MI and ID information. Female participants also perceived greater risk of future harm to adults, and older participants estimated higher risk of sexual reoffending than younger participants. Findings have implications for community acceptance of PCSO-Cs and jury decision-making processes and highlight the importance of public education regarding neurodiverse PCSO-Cs and PCSO capacity for change to encourage knowledge-based judgements.