The research also showed that 84 per cent of mums believe that buying British is an important factor when conducting their weekly shop.
It is also a lunch box favourite, with more than half of parents (55.7 per cent) saying they prefer their children to eat a British apple.
Among the types being stocked by Sainsbury's are rare varieties such as William Crump and Orleans Reinette, which the supermarket said it was able to source by working closely with its growers.
Sainsbury's apple buyer, Lee Turner said: "We continue to sell more Britishgrown apples than any other retailer so it's great news to see that shoppers are as committed to supporting local growers as we are."
"We offer more varieties than any other supermarket, including many traditional British apples that might otherwise become extinct."
Figures out in July from English Apples & Pears confirmed that Sainsbury's was in the top position by volume for the third consecutive year, selling 13,000 more tonnes of home-grown apples and pears than any other retailer since 2008.
An NFU representative said: "A supermarket probably is not the first place you would look for a William Crump or Orleans Reinette. It is encouraging to see this kind of range of British apples being offered to the masses."