Gillett Grove is a city in Clay County, Iowa, United States.

[3] The city was named for brothers George and Isaiah Gillett, pioneer settlers.

[3] Gillett Grove's longitude and latitude coordinatesin decimal form are 43.014514, -95.036576.

[4] According to the United States Census Bureau, the city has a total area of 0.19 square miles (0.49 km2), all land.

There were 20 housing units at an average density of 90.1 per square mile (34.8/km2).

41.7% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older.

32.1% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.

There were 13.3% of families and 28.3% of the population living below the poverty line, including 18.2% of under eighteens and none of those over 64.

Gillett Grove is within the Spencer Community School District.