Zip code 99337 in Finley, Washington, is classified as a "White Majority" community with moderate diversity as of 2022. The white population comprises 68% of the total, while Hispanic residents represent 24%. The area has undergone gradual demographic changes over the past decade, moving towards increased diversity. The median income has experienced fluctuations but overall growth, reaching $76,380 in 2022.

From 2013 to 2022, Finley has maintained its "White Majority" status, but with a trend towards increasing diversity. The white population decreased from 76% in 2013 to 68% in 2022. The Hispanic population increased from 19% to 24% over the same period. Other racial groups, including Asian, Black, and multiracial populations, have shown small but consistent increases. This trend indicates that Finley is becoming a "Transitional Community," slowly moving from a "White Majority" towards a potential "Moderate Diversity" classification in the future if current trends continue.

The median income in Finley has shown overall growth with fluctuations. From 2013 to 2022, median income increased from $77,966 to $76,380, with a peak of $85,695 in 2021. The population has grown steadily from 32,094 in 2013 to 34,502 in 2022, a 7.5% increase. These economic trends correlate with the demographic shifts. The overall increase in median income suggests that the growing diversity has not negatively impacted economic prosperity. The population growth aligns with the increasing diversity, indicating that the area may be attracting a more diverse set of residents.