Port Alsworth is a census-designated place (CDP) in Lake and Peninsula Borough, Alaska, United States.

From the summer of 2013 to the spring of 2014, the local Tanalian School underwent renovation and a dearly needed expansion.

The renovation tripled school square footage, bought new furniture, and doubled the size of the gym.

Port Alsworth is located in northern Lake and Peninsula Borough at 60°12′30″N 154°18′24″W / 60.20833°N 154.30667°W / 60.20833; -154.30667 (60.208281, -154.306586).

[5] It sits on the south shore of Lake Clark at the mouth of the Tanalian River.

Port Alsworth first appeared on the 1940 U.S. Census as the unincorporated village of "Tanalian Point".