Is Portland, TN 37148 a buyer’s or seller’s market?

The Portland housing market right now

In the three months ending August 31, 2026, 8% of homes in Portland, TN 37148 sold above their list price, the typical home went under contract in 66 days and there were 4.6 months of supply. Four to six months of supply is a balanced market, where pricing and condition decide how much room there is to negotiate. That’s based on 121 home sales.

Compared with the same period a year earlier, the share selling over asking fell from 11%, homes sold more slowly (56 days then) and the median sale price rose 2% to $356,846. Overall, Portland is less competitive than a year ago, which gives buyers more room.

Within Sumner County, homes here sell faster than in 50% of the county’s ZIP codes, and sell less often over asking than in 83%. On our competition score, Portland ranks #187 of 299 TN ZIP codes with enough sales (score 25 out of 100).

Nearby, buyers who want less competition could look at Castalian Springs 37031 (0% sold over asking), while Cottontown 37048 (25% sold over asking) and Gallatin 37066 (14% sold over asking) are even more competitive.