Nassau Bay is a city located in Texas. With a 2020 population of 3,870, it is the 429th largest city in Texas and the 5507th largest city in the United States . Nassau Bay is currently declining at a rate of -1.30% annually and its population has decreased by -3.30% since the most recent census, which recorded a population of 4,002 in 2010. Nassau Bay reached it's highest population of 4,526 in 1980. Spanning over 2 miles, Nassau Bay has a population density of 3,172 people per square mile.
The average household income in Nassau Bay is $106,754 with a poverty rate of 15.19%. The median rental costs in recent years comes to $1,154 per month, and the median house value is $243,700. The median age in Nassau Bay is 39.8 years, 41.4 years for males, and 39 years for females.