The number of Borders households has increased by almost 10,000 between 1991 and 2011, to 52,485, with 1,149 of those second homes.
In Berwickshire the second homes tend to be along the coastline and also in the Lammermuirs.
The Borders figures are in line with the rest of Scotland, which has seen the number of households rise to 2.4 million, an increase of around 171,000 (eight per cent).
Statistics about dwellings and households are used to inform council decisions about housing need and the provision of services (including housing, planning, waste collection and community care).
The statistics are also used when it comes to decisions about allocating land use, planning, and transport.
Area statistics are used by Scottish Water to assess demand for water and sewerage services. They have also been used in risk analysis by fire and rescue services, to provide information on housing in rural areas (including second homes and empty dwellings) and to project the future size of school rolls.
Tim Ellis, chief executive of National Records of Scotland, said: “The number of households in Scotland is projected to grow by nearly 400,000 over the next 25 years. Most of this increase is in the older age groups. Scotland’s population is growing, but the number of households is increasing faster, due to changes in the types of households people are living in, and the ageing population.”
The biggest increases are among older households, due to Scotland’s ageing population. Older people are more likely than younger people to live alone. In 2037, it is projected that there will be 46,100 men aged 85+ living alone in Scotland, and 108,000 women.
According to Scottish Borders Council’s Local Housing Strategy 2012-17: “The number of households is also increasing and is in line with growth in the neighbouring local authorities (7% since 2001). These increases will continue in the Borders -by a total of 27% over the next 25 years. Households will become smaller: 40% of households will be one person in the Scottish Borders in 2033 compared to 34% now. The area has an older age profile than in neighbouring authorities and Scotland, and the trend for an ageing population will continue -the proportion of the population aged over 65 will increase from 20% to 30% representing a 75% increase in people aged over 65 years living in the Scottish Borders compared to 40% increase in Scotland overall.