The economic growth occurred in parallel with the maintenance of the area's racial homogeneity. This suggests that increasing prosperity has not yet translated into significant demographic changes.

The zip code appears to be resisting the national trend of increasing racial diversity in suburban areas. The high median income and predominantly white population suggest this area might be categorized as an "affluent suburb." The income growth in this zip code outpaces the national average, indicating a particularly prosperous local economy.

In conclusion, Kansas City's 64166 zip code has experienced economic growth and population increase over the past decade while maintaining its status as a Low Diversity area with a White Majority. Subtle increases in minority populations may indicate early stages of a transition towards greater diversity, but this process is occurring at a slower rate than in many comparable suburban areas across the United States. The area's economic prosperity appears to be the dominant factor in its development, potentially attracting new residents while maintaining its existing demographic character.