Valley Falls is a city in Jefferson County, Kansas, United States. The population was 1,254 at the 2000 census. Originally named Grasshopper Falls, the city is located in Delaware Township; because it is not governmentally independent, the local government sits in a township hall rather than in a city hall. Valley Falls apartments for rent comparison page shows most up to date rent information on Valley Falls apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.