what county is cumby tx
Sponsored Topics. Cumby is a city in Hopkins County, Texas, United States. The population was 616 at the 2000 census. Cumby is located at 33Â°8â²7â³N 95Â°50â²25â³W / 33.13528Â°N 95.84028Â°W / 33.13528; -95.84028 (33.135235, -95.840141). According to the United States Census Bureau, the city has a total area of 0.9 square miles (2.3 kmÂ²), all of it land.