New NHS figures show council care spending fell to a six-year low to under £17bn in 2015-16.
The report by NHS Digital reveals spending of £16.97bn in 2015-16 down from £17.04bn in 2014-15.
The weekly average cost of care per adult was £716 for long term residential care and £596 for long term nursing care.
Residential care accounted for the largest proportion of long term care spending at £5.09bn (39%) with nursing care accounting for 12%.
By region, the south east spent the most on care at £2.8bn with the north east spending the least at £0.9bn.
London had the highest unit costs for long term care with the exception of residential and nursing care for 18 to 64 year olds.
The report said an 11% rise in adult social care income from £4.92bn in 2014-15 to £5.48bn in 2015-16 may be partly down to the £5.3bn Better Care Fund, which was announced by the government in June 2013.
A Department of Health spokesman said: “As well as funding the NHS’ own plan for the future with £10billion, we are giving local authorities access to up to £3.5 billion extra a year for adult social care”.
To read the report, click here.