The Commission for Social Care Inspection (CSCI) has today published its Star Ratings.
For the first time since performance ratings were instigated, not a single authority gained a zero-star rating.
One sector chief commented that while the achievements represented much time, effort and skill across the country, there is no room for complacency in the area of adult care.
"They show that services to adults have been and are continuing to improve," said the president of the Association of Directors of Social Services, John Coughlan.
"However, we cannot ignore the fact that these improvements have been made in the teeth of one of the most severe financial squeezes social care has experienced for a long while.
"In that light, authorities who have added a star to their total, or remained managing services at the same level as last year, deserve an extra round of applause, while those whose ratings have worsened deserve an extra round of applause, while those whose ratings have worsened deserve our determined support."
Ratings are an important part of the way care services monitor their progress and delivery.
The Healthcare Commission has announced that its healthcare ratings system will be updated for 2006/07, with a hotel-style rating based on self-assessed reports by homes that take into account a wider range of factors such as quality of food.