Mayor of Burgess Hill Anne Jones is urging residents to contribute to a consultation about Burnside Day Centre, which may face closure.
“We need people who have children with learning difficulties to speak out,” she said.
“Do they want people to meet out in the community or do they want somewhere people can go along and learn in a day centre, where they can enjoy meeting with friends in a safe environment?”
West Sussex County Council said fewer people are making use of the centre.
Campaigners have branded the potential closure as a ‘disgrace’.
Three options have been proposed for Burnside: to do nothing, improve the building and services, or find alternative services for customers and close the building.
The consultation will run until January 9, 2015. For more information call 0330 2225855