The proportion of people getting married is falling, and those who do tie the knot are waiting for longer, official statistics show.

Just over half of adults aged 16 and over in England and Wales (50.4%) were married or in a civil partnership in 2019, the Office for National Statistics (ONS) said.

There were 23,015,912 people married or in a civil partnership in England last year – just over half (50.6%) of the total population of marrying age.

And there were 1,257,042 people married or in a civil partnership in Wales in 2019 – 48.6% of the population aged 16 and over.

While it remains the most common marital status, the proportion is “steadily declining” across all age groups except for the over-70s.

In 2009, the equivalent proportion of people married or in a civil partnership in England was 52.2%.

Overall, the proportion of men who are married has fallen by 1.9 percentage points compared with a decade earlier, while for women a fall of 1.4 percentage points has been seen.

This decline is particularly marked in people aged 50 to 69, with a decrease of 5.5 percentage points (to 67%) compared with a decade earlier.

In contrast, the proportion of the population who are married or in a civil partnership has increased for those aged 70 years and over to 54.8%, 3.8 percentage points higher than a decade earlier.

Nine in 10 adults aged 16-29 were single in 2019 – a proportion the ONS said has been increasing “as people choose to postpone entering a legal partnership”.

At the same time, the overall proportion of adults who are single, have never married or been in a civil partnership is rising.

More than a third of adults 16 and over (15,925,027) were estimated to be single in 2019, while 8.2% had divorced or dissolved their civil partnership and 6.5% had survived the death of a former legal partner.

A higher proportion of men were single (38.3%) compared with women (31.8%), the ONS said.

Amanda Sharfman, from the ONS’s Centre for Ageing and Demography, said: “We see slow changes in the composition of the population aged 16 years and over by marital status over time.

“Married remained the most common marital status, accounting for just over half of the population in 2019, but this proportion is steadily declining except among those aged 70 years and over.

“In particular, females in their 70s were more likely to be married than a decade earlier. They were also more likely to be divorced, and less likely to be widowed.

“This reflects improvements in life expectancy over time, as well as an increase in marriages and divorces in later life.”