Country Brook, a neighborhood in Garland, Texas, exhibits characteristics of Moderate Diversity with a shifting demographic landscape. As of 2022, the community is characterized by a Black Plurality (36% of the population), followed by White (35%) and Asian (20%) populations. The neighborhood has a median income of $95,856, suggesting a relatively affluent suburban community. Country Brook has experienced significant demographic changes over the past decade, transitioning from a more evenly distributed racial composition to its current state.

In 2013, Country Brook could be categorized as having High Diversity, with no racial group exceeding 40% and at least three groups (White, Asian, and Hispanic) having significant representation over 10%. Over the years, the neighborhood has transitioned towards a Moderate Diversity classification, with the Black population showing the most substantial growth. The most notable shift occurred between 2019 and 2022. The Black population increased from 22% to 36%, the White population remained relatively stable (33% to 35%), the Asian population fluctuated but ended at 20%, and the Hispanic population decreased from 25% to 8%.

The median income in Country Brook has shown an upward trend, increasing from $72,086 in 2013 to $95,856 in 2022, representing a 33% increase over nine years. This growth in income correlates with the demographic shifts, particularly the increase in the Black population percentage. The population has remained relatively stable over the decade, fluctuating between about 1,000 to 1,300 residents. This stability, combined with rising incomes, suggests that the neighborhood has maintained its appeal while potentially becoming more exclusive due to increasing property values.