Merriam is a city in Johnson County, Kansas, United States, and part of the Kansas City Metropolitan Area. As of the 2010 census, the city population was 11,003. Merriam is included in the Shawnee Mission postal designation. It is also the headquarters of Lee Jeans.
Merriam was incorporated as a third class city on October 28, 1950, and established second class city status on January 18, 1957.
The city was named in honor of Charles Merriam, a one-time secretary/treasurer of the then Kansas City, Fort Scott and Gulf railroad which ran through the area.
Merriam is located at 39°1′15″N 94°41′38″W (39.020888, -94.693784). It is bordered by the cities of Overland Park to the east and south, Shawnee to the west, and Kansas City, Kansas to the north (in Wyandotte County); the city of Lenexa is less than a mile to the southwest. The city straddles approximately three miles of Interstate 35 from less than a mile southwest of its junction with Interstate 635 south to 75th Street. Shawnee Mission Parkway, an east-west road, nearly bisects the city. U.S. Routes 59 and 69 follow the Interstate to the south of the city and follow Shawnee Mission Parkway to the east from its junction with the Interstate. Turkey Creek, following a roughly parallel path to the Interstate, flows through the city.
According to the United States Census Bureau, the city has a total area of 4.32 square miles (11.19 km2), all of it land.
As of the census of 2010, there were 11,003 people, 4,900 households, and 2,788 families living in the city.