Some 61% of jobs done by these young women had wages paid by the state, HM Revenue and Customs (HMRC) said.
Young men of the same age were also more likely than not to have been furloughed, hitting 58% of their jobs.
Men aged in their 40s and women aged 41 to 58 were least likely to have been put on the scheme.
Anne Willmot, age campaign director at Business in the Community, said: “Young people are being locked out of employment at the start of their careers – a key time for them to gain experience, learning and development in the workplace.”
More than nine million workers who are unable to do their job because of the coronavirus outbreak have had their wages paid by the government.
The furlough scheme was designed to help people put on leave because of the outbreak, and prevent mass redundancies. Firms start paying towards the scheme from August. It will close in October.
Detailed data has been published by HMRC which shows where the scheme was used until the end of June, by which point it had cost the Treasury £26.5bn.
People working for smaller companies are more likely to have been furloughed than those employed by bigger businesses.
Some 57% of jobs at businesses with between five and nine employees had been furloughed, compared with 19% at companies with 250 or more employees.
A handful of larger companies have been repaying furlough money claimed from the Treasury.
By sector, those working in accommodation and food services had the highest proportion of employers furloughing at least some staff (87%) and the highest proportion of total employments furloughed at 73%.
The local authority with the highest proportion of jobs furloughed was South Lakeland at 40% and the lowest was Boston in Lincolnshire at 20%.
The number of people claiming work-related benefits – including the unemployed – was 2.6 million.
However, the total was not as big as many feared, because large numbers of firms have put employees on the government-backed furlough scheme.
Economists say the full effect on employment will not be felt until the scheme ends in October.
Because of the effect of the furlough scheme on the employment market, analysts say the number of hours worked per week is currently a truer reflection of the impact of the coronavirus crisis.
The Office for National Statistics (ONS) said that since the start of the pandemic, total weekly hours worked in the UK had fallen by a record 175.3 million, or 16.7%, to 877.1 million hours.
The ONS said: “Despite the lack of overall increase in the number of unemployed, the estimated number of people unemployed aged 16 to 24 years increased by 47,000 on the year while other age groups remained steady.”
It added that a larger than usual number of those losing their jobs were not currently looking for another one and were therefore economically inactive rather than unemployed.
Source: BBC News