Swimming is England's most popular mass-participation sport, ahead of athletics or cycling, but a 2016 survey found a drop in adult swimming numbers.
The strategy - titled 'Toward a Nation Swimming' - aims for a "significant increase" in participation.
This includes encouraging young people to try other types of aquatic sport.
The strategy document cites six areas of focus:
It details how Swim England will support its 200,000 members and the thousands of young people who take part in weekly swimming lessons, as well as the workforce that teaches and coaches them.
Young people will be encouraged to try diving, water polo and synchronised swimming, and swimmers supported to reach their potential.
Find out how to get into swimming with our fully inclusive guide.
Jane Nickerson, who was confirmed last week as Swim England's chief executive, said: "Our vision is a nation swimming and our strategy sets out how we will bring together organisations from across the swimming, health and physical activity sectors to work towards this.
"Leadership and support for our partners are key parts of our strategy and, as such, we have changed from a local delivery organisation to one that is more strategically-focused.
'Toward a Nation Swimming' is the first strategy that focuses solely on swimming in England. Click on the following links to find out more about swimming in Scotland, Wales, and Ireland.

8 November 2016 Last updated at 10:40 GMT
It's about 30 metres long and it's thought it may have been caused by work on an underground train line in the city of Fukuoka on the southern Japanese island of Kyushu.
It began with two smaller holes that grew steadily until they formed one huge crater.
Nobody has been hurt by the sinkhole but it has affected power, water, and gas supplies.
People who live and work nearby have been evacuated.
Check out this video.

Albanians Artur Doda, 24, and Leonard Isufaj, 27, leapt from the Stena Britannica, off Harwich, Essex, on 26 February last year.
The pair had tried to enter the UK hours earlier inside a lorry, the inquest into their deaths in Chelmsford heard.
Coroner Eleanor McGann recorded conclusions of accidental death.
Mr Doda and Mr Isufaj were among a group of 15 people from different countries caught in a random x-ray check at Harwich before making it into the UK.
The inquest heard Mr Doda was sliced by the "machete-like" motion of the ship's propeller while Mr Isufaj drowned.
Both men were sucked underwater almost immediately after they jumped over the side of the ship, ten minutes into its journey back to Zeebrugge, Belgium.
Essex coroner Ms McGann said: "The evidence suggests they were intending to swim back to England, something that they could see was tantalisingly close to them."
Insp Christopher Willis, from Essex Police, told the hearing the sea would have appeared deceptively calm to the men.
"To swim to land with those tides and the water temperature would have been nigh-on impossible," he said.
"An Olympic swimmer would have struggled."
Speaking after the hearing, Mr Isufaj's cousin, Besnik Vata, 33, from north London, said the case highlighted the plight of many immigrants.
"We heard that they weren't escorted on board the ship so there was always a risk this would happen - if I was in that position I would have done the same," he said.
Border Agency official Giles Young said there was no policy of escorting deportees in place.
The Amateur Swimming Association (ASA) has been rebranded Swim England as part of a four-year strategy to strengthen the sport and boost participation.
[NEXT_CONCEPT]
Check out this giant sinkhole in a road in Japan!
[NEXT_CONCEPT]
Two deportees who died after jumping from a ferry were trying to swim back to the UK shore, an inquest has heard.