The strength of grammar schools and the standard of education in the state sector have been highlighted as reasons why families in the West Midlands spend less on private education than anywhere else in the UK.
An average of only £2.80 per week is spent on independent schools per household in the region, according to the Office for National Statistics's Family Spending survey.
The sum is nearly four times less than the amount spent by Londoners and significantly less than the UK average of £5.30.
There are eight grammar schools within Birmingham - including five within the King Edward's Foundation - two in Walsall and one in Wolverhampton.
John Collins, secretary assistant to the governors at the King Edward's Foundation, said: " There are ten grammar schools in the West Midland conurbation.
"That negates the need for families to spend money on private education because they have these good schools for nothing."
The ONS survey sampled thousands of families across the country.
The figure for education fees is an average that takes into account families that have no children in the sample and the fact that most of those that do use state schools.
Mr Collins suggested another reason for the region coming bottom of the table in education spending was because there was little in the way of boarding schools.
Large numbers of grammars became comprehensives under moves by Labour to end selection during the 1970s.