Londonderry, NH vs Portsmouth, NH

Londonderry is moderately more affordable than Portsmouth, with a 8.8% lower cost of living index. Londonderry scores 132 compared to 145 for Portsmouth, where the US average is 100. This difference means residents of Portsmouth can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Londonderry is $1,917/month compared to $1,778/month in Portsmouth — a 8% difference. Interestingly, home values tell a different story: while Portsmouth has cheaper rent, Londonderry actually has lower median home values ($433,100 vs $640,600).

Median household income in Londonderry is $113,109 compared to $105,756 in Portsmouth (+7%). Londonderry offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Londonderry spend roughly 20.3% of their income on rent, more than the 20.2% in Portsmouth.

Climate-wise, Londonderry is notably warmer with an average of 50.1°F compared to 46.9°F in Portsmouth. Portsmouth receives more rainfall at 47" per year compared to 40.4" in Londonderry.