Cotton Valley is a city located in Webster Parish Louisiana. With a 2020 population of 924, it is the 171st largest city in Louisiana and the 10632nd largest city in the United States . Cotton Valley is currently declining at a rate of -0.65% annually and its population has decreased by -8.42% since the most recent census, which recorded a population of 1,009 in 2010. Cotton Valley reached it's highest population of in . Spanning over 3 miles, Cotton Valley has a population density of 351 people per square mile.
The average household income in Cotton Valley is $30,045 with a poverty rate of 51.98%. The median rental costs in recent years comes to $301 per month, and the median house value is $45,700. The median age in Cotton Valley is 31.5 years, 30.8 years for males, and 31.7 years for females.