The council has defended itself after a new report branded the borough's swimming facilities inadequate.
The London Assembly's Economic Development, Culture, Sport, and Tourism Committee found that residents in Hillingdon had the second worst access to swimming pools in the whole of London.
The report claims that 76 per cent of people in Hillingdon live more than a 20-minute walk away from a public swimming pool, and that by 2012 this will only have been reduced to 68 per cent.
Dee Doocey, chair of the committee, said: "Getting more people swimming is at the heart of the plans for a sports participation legacy from the 2012 Olympics.
"Our report highlights that in 11 London boroughs, half the population live more than 20 minutes' walk from a public pool. In many cases, these are boroughs that have poorer access to public transport.
"The maps show that access to swimming pools will not have improved by 2012 despite the focus of swimming as part of the 2012 sporting legacy."
However, Hillingdon Council argued the report was inaccurate and unfair.
Jean Palmer, director of planning and community services, said: "Unfortunately, this report does not include two of the borough's four swimming pools, and so is not a true reflection of the swimming facilities available to residents.
"The report also does not recognise the fact that Hillingdon is the second largest borough and the population is more spread out than in other areas.
"Hillingdon is one of the few London boroughs actually building new swimming pools which will provide residents with easier access to more local facilities.
"Hillingdon residents will soon be able to swim in the new 50m pool and fully refurbished Grade II listed 1930s lido at Uxbridge.
"The council is also investing a further £16million on a new sports and leisure centre in Botwell Green, Hayes, that incorporates a new library and one-stop shop."
The report showed neighbouring Harrow to have 65 per cent of its population over one mile from a public swimming pool. Ealing had 64 per cent and Hounslow had 44 per cent.