Nottinghamshire County Council is appealing for people to consider fostering older children.
It's also urging them to give a home to siblings, so they don't have to be separated.
Naomi Maher, 19, has been in foster care since the age of four. For nearly 12 years she's been living with the same foster family.
Naomi said she was happy to join her sister who'd already been fostered by the same family.
The County Council currently has 847 children in care. A figure which has doubled since 2008.
Councillor Kate Foale, who leads on the children's social care said there is a desperate need to find loving temporary and permanent homes for many youngsters.