Zip code 77615 in Evadale, Texas, is categorized as having Low Diversity as of 2022, with a white population comprising 96% of the total. The community has 27 residents and a median income of $84,245. From 2013 to 2022, Evadale maintained a White Majority. The community remained in the Low Diversity category from 2013 to 2016, with the white population consistently above 90%. Between 2017 and 2020, there was a slight trend towards Moderate Diversity, with the white population decreasing to 80% by 2020. This period saw an increase in Hispanic representation and those identifying as two or more races. In 2021-2022, the community reverted to Low Diversity, with the white population increasing back to 96% by 2022.

The median income in Evadale has shown an overall upward trend, increasing from $69,820 in 2013 to $84,245 in 2022, representing a 20.7% increase over nine years. This growth in median income coincides with the maintenance of a White Majority in the community. The population of the zip code has fluctuated over the years, peaking at 50 residents in 2017 and 2019, then declining to 32 residents in 2021 and further to 27 in 2022. This significant population decrease occurred simultaneously with the reversion to Low Diversity and an increase in median income.

Evadale's 2021 median income of $77,868 was about 10% higher than the national average of $70,784, indicating a relatively affluent community despite its small size. The trend towards increasing income and decreasing population, combined with a return to Low Diversity, runs counter to many national trends where increasing diversity often correlates with population growth in many areas.