It happened at 24999 Ceremonial Lane in west Harris County, just north of Katy.
Gonzalez said the 6-year-old was found 'face down in the pool' when deputies arrived. The child was taken to Texas Children's Hospital at Barker Cypress Rd. where the child was pronounced dead.
It's unclear how long the child was in the pool before deputies arrived.
This comes just one day after the body of a lifeless 2-year-old toddler was found floating near Sylvan Beach Park just before 6 p.m. Saturday evening.
RELATED: 2-year-old reported dead after drowning at Sylvan Beach Park
2-year-old dead after drowning at Sylvan Beach Park: sheriff