A surge in population has been officially forecast for the Cairngorm National Park.
A six percent rise in households is predicted over the next 25 years.
Last week Cairngorms National Park Authority laid out its blueprint for the area with a target of delivering 200 new affordable homes over the next five years.
Approved on the Friday morning, the package came after figures revealed that house prices in the park are six times higher than average household earnings.
Figures published on Wednesday (April 12) by the National Records of Scotland (NRS) show that the number of households is projected to rise around Scotland’s biggest cities, and within its two national parks.
Regions near Scotland’s biggest cities of Aberdeen, Dundee, Edinburgh and Glasgow - where around three quarters of the population of Scotland live - are not surprisingly set to bear the brunt.
The projected growth over the next 25 years ranges from 12% in Glasgow and Clyde Valley to 24% in Aberdeen city and shire.
However the forecast in household numbers is lower in the two National Parks, at 6% for Cairngorms National Park and 1% for Loch Lomond and the Trossachs National Park.
But in the case of the Cairngorms it is still significant.
Scotland’s population is ageing, and older people are more likely to live in smaller households or alone. By 2039, the projections indicate that at least 29% of households will be headed by people aged 65 or over in each of these areas, with the highest figures being in the Loch Lomond and the Trossachs National Park with 51% of households.
Tim Ellis, the Chief Executive of National Records of Scotland, said:"The figures show a projected rise in the number of households around Scotland’s four biggest cities, where around three quarters of the population lives. Although the number of households is also expected to rise in the two National Parks, the rise is much lower.
"These statistics play an important role helping us predict where people will be living over the next 25 years, allowing policy makers to reach decisions about housing and services in Scotland."
These figures are based on a National Statistics publication released by NRS.
The household projections are trend-based and are not, therefore, policy-based forecasts of what the Government expects to happen. Specifically, the assumptions do not take account of the recent referendum vote to leave the European Union.