Diamondhead is a city located in Mississippi. With a 2020 population of 7,946, it is the 48th largest city in Mississippi and the 3647th largest city in the United States. Diamondhead is currently declining at a rate of -0.61% annually but its population has increased by since the most recent census, which recorded a population of in 2010. Diamondhead reached it's highest population of 8,415 in 2011. Spanning over 13 miles, Diamondhead has a population density of 786 people per square mile.
The average household income in Diamondhead is $87,084 with a poverty rate of 7.46%. The median rental costs in recent years comes to $883 per month, and the median house value is $172,100. The median age in Diamondhead is 51.2 years, 49.8 years for males, and 53 years for females. For every 100 females there are 98.1 males.