Aberavon in Port Talbot and Benllech on Anglesey have also seen house prices rise by more than 40 per cent since 2015.
Welsh Rugby Union chief executive Steve Phillips says it is "too early to quantify" the full impact of Covid-19 after the WRU announced a loss of £5.3million.
The funding will support the Welsh NHS in preparing for the anticipated pressures that winter usually brings, alongside the added strain this year of a potential second wave of coronavirus.