The Affordability Reality Check: Buying in Southern New Hampshire in 2026 If you are considering a home purchase in Hillsborough County, here is what today's market is really telling us about affordability. The Numbers Don't Lie The median home price in Hillsborough County sits at $540,917, with the average single-family home in Nashua running $510,000. Mortgage rates are stable at 6.23% for a 30-year...