New Hampshire recorded its most expensive October in history, as single-family home prices held above half a million dollars for the eighth consecutive month, reaching a median sales price of $500,750.

Despite a modest increase in inventory, with 2,354 homes available at the end of the month, the market remains firmly in favor of sellers, according to the New Hampshire Association of Realtors.

This October also continued a 57-month streak, with home prices climbing compared to the same period the previous year.

Balanced conditions of typically between five to seven months’ worth of homes available haven’t been seen in the state since October 2016.

Across New Hampshire, regional differences remain stark.

Rockingham County recorded the highest October median sale price in the state at $628,000, while Coos County saw the lowest at $297,450.

In Merrimack County, the median price hit $470,000 — lower than the state average but still up by 9.3% over last year.

Closer to the capital, local towns saw varied price points too.

Concord recorded a median of $465,500, while nearby Bow reached $599,900. Hopkinton saw even higher prices, hitting $712,000, with Boscawen on the lower end at $390,000.

At the end of October, Concord had 38 homes available for sale, while Hopkinton had just 2, Bow had 7 and Boscawen had 4.

Sruthi Gopalakrishnan can be reached at sgopalakrishnna@cmonitor.com