West Chester is a city in Washington County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 0.25 square miles (0.65 km2), all of it land.

[5] As of the census of 2020,[7] there were 144 people, 59 households, and 47 families residing in the city.

There were 67 housing units at an average density of 264.5 per square mile (102.1/km2).

At the 2010 census there were 146 people in 63 households, including 45 families, in the city.

There were 75 housing units at an average density of 300.0 per square mile (115.8/km2).

There were 74 housing units at an average density of 292.8 per square mile (113.1/km2).

About 5.6% of families and 6.8% of the population were below the poverty line, including none of those under the age of eighteen and 25.0% of those sixty five or over.