THE average life expectancy for woman living in the Chichester and Arun districts could be close to 90 by the year 2030.
Men in both areas are set to live slightly younger, at between 86 and 87, a new study is estimating.
The figures are higher than the national average, which predicts that UK women will live to 87.6 by 2030 and men 85.7.
The study, carried out by Lancet and based on Office for National Statistics data, anticipates that the average life expectancy for women in the Chichester district will rise from the current age, 85.5, to 89 over the next 15 years.
Women in the Arun district could be up from 84.8 to 88.
The current life expectancy for men living in Chichester is 82, but that is predicted to rise above 87 by 2030.
Bognor men, currently living to 81, could live to the age of 86 on average.
But the upward trend masks significant regional differences, the research suggests.
By 2030, people in southern England and well-off districts of London are expected to be living more than eight years longer than those in northern urban centres such as Blackpool, Liverpool and Manchester, as well as South Wales.