Mothers who have given birth in the past year are 30% more likely to breastfeed than women who gave birth in the last five years, new figures show.
Recent mothers also expect to breastfeed for longer, between seven and 12 months, the survey by baby feeding brand Philips Avent found.
Researchers questioned 1,000 mothers and discovered that breastfeeding, whether solely or partially, has jumped to 65% over the past 30 years.
Plymouth has the highest rate of breastfeeding among new mothers at 78%, but Liverpool has the lowest at 48%.
However, 92% of all mothers in the UK said they think that breast milk is the healthiest way to feed their baby.
Vicki Scott, wellbeing advisor at Philips Avent, said the study indicates attitudes towards breastfeeding have shifted significantly.
She said: "There is research coming out all the time about breastfeeding and its benefits and it's great that mums are picking up on the messages."
Miss Scott believes many women in the past were discouraged from breastfeeding because they lacked confidence.
"A lot of women feel they won't be able to do it. With a bottle of milk you know the baby has had his or her feed. With breastfeeding you have to go on instinct and trust that your body will work," she added.