Slater is a city in Saline County, Missouri, United States.

[4][6] According to the United States Census Bureau, the city has a total area of 1.44 square miles (3.73 km2), all land.

[7] In accordance to the World Population Review, in 2024, the number is estimated to have dropped to 1,770 people, with a median age of 36.7 years.

34.1% of all households were made up of individuals, and 17.4% had someone living alone who was 65 years of age or older.

36.5% of all households were made up of individuals, and 21.9% had someone living alone who was 65 years of age or older.

[13] As of 2019, the district is falling behind state standards in multiple educational categories.

[14] Since 2019, Slater School District K-12 has seen an increase in education ranking through the state department MSIP6 point system.

After the town's population peaked, then declined, in the first half of the 20th century, the two publications merged, creating the unusual name.