Valley Brook, OK has a population of 804 and is the 16,575th largest city in the United States. The population density is 3,074 per sq mi which is 5532% higher than the Oklahoma average and 3293% higher than the national average. The median age in Valley Brook is 35 which is approximately 3% lower than the Oklahoma average of 36. In Valley Brook, 48% of the population over 15 years of age are married, 88% speak English and 10% speak Spanish. 61% of Valley Brook residents were born in Oklahoma, 31% were born out of state, 2% were born outside of the United States and 6% were foreign born.