West Line is a village in Cass County, Missouri.

[4] The village was named from its position near the west boundary of the county and state.

[6] According to the United States Census Bureau, the village has a total area of 0.45 square miles (1.17 km2), all land.

18.9% of all households were made up of individuals, and 8.1% had someone living alone who was 65 years of age or older.

20.0% of all households were made up of individuals, and 8.6% had someone living alone who was 65 years of age or older.

There were no families and 6.3% of the population living below the poverty line, including no under eighteens and none of those over 64.