Gilliam is located in Missouri. Gilliam, Missouri has a population of 179. Gilliam is less family-centric than the surrounding county with 24% households with children. The county percentage for households with children is 26%.
The median household income in Gilliam, Missouri is $54,038. The median household income for the surrounding county is $47,273 compared to the national median of $66,222. The median age of people living in Gilliam is 43.6 years.
The average high temperature in July is 86.61 degrees, with an average low temperature in January of 15.94 degrees. The annual precipitation is 38.73.