Greenacres is a locale and former census-designated place (CDP) in Spokane County, Washington, United States. The locale is almost entirely split between the city of Spokane Valley and unincorporated Spokane County, with a small portion being located within the city of Liberty Lake. Greenacres retains its own post office.
Greenacres has two schools in the Central Valley School District named after it; Greenacres Middle School and Greenacres Elementary School.
Greenacres was listed as a census-designated place (CDP) in the 2000 U.S. Census with the spelling "Green Acres". The community largely became part of Spokane Valley when that city incorporated in March 2003. Since then the name Greenacres has been classified as an "official common name for a populated location within an incorporated place".
The majority of the CDP became part of the city of Spokane Valley upon its incorporation in 2003. An additional section of the CDP became part of the city of Liberty Lake in 2006. The population was 5,158 at the 2000 census.
Greenacres is located at 47°39′48″N 117°9′24″W (47.663450, -117.156537).
According to the United States Census Bureau, the CDP had a total area of 3.4 square miles (8.7 km2), of which, 3.3 square miles (8.6 km2) was land and 0.1 square miles (0.2 km2) of it (1.78%) was water.
As of the census of 2000, there were 5,158 people, 2,021 households, and 1,414 families residing in the CDP. The population density was 1,554.7 people per square mile (599.9/km2).