Gilmore is a city in Crittenden County, Arkansas, United States. Per the 2020 census, the population was 176. Gilmore is located in northern …Gilmore is a city in Crittenden County, Arkansas, United States. Per the 2020 census, the population was 176. Gilmore is located in northern Crittenden County and is bordered to the south by the city of Turrell. Interstate 555 pass through the west part of Gilmore, leading northwest 44 miles to Jonesboro and south 20 miles via Interstate 55 to West Memphis. According to the United States Census Bureau, Gilmore has a total area of 0.23 square miles, all land.