Hansen is a city in Twin Falls County, Idaho, United States.

It is part of the Twin Falls, Idaho Micropolitan Statistical Area.

According to the United States Census Bureau, the city has a total area of 0.38 square miles (0.98 km2), all of it land.

22.0% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older.

There were 378 housing units at an average density of 1,012.3 per square mile (390.9/km2).

21.2% of all households were made up of individuals, and 9.5% had someone living alone who was 65 years of age or older.