Smithtown, New York, currently exhibits a demographic profile categorized as "Low Diversity" based on established terminology. As of 2022, the white population comprises 81% of the total, significantly dominating the racial composition of the community. The city's economic status is notably affluent, with a median income of $141,011 in 2022, which is considerably above national averages.

Over the past decade, Smithtown has consistently maintained its status as a "Low Diversity" community. However, subtle but noteworthy shifts indicate a gradual move towards increased diversity. The white population has decreased from 91% in 2013 to 81% in 2022, showing a steady decline. The Hispanic population has more than doubled, from 4% in 2013 to 9% in 2022. The Asian population has increased slightly from 3% to 5% over the same period. The category of "two or more races" has emerged and grown from 0% in 2013 to 4% in 2022.

The economic landscape of Smithtown has seen significant growth over the past decade. Median income has increased from $123,297 in 2013 to $141,011 in 2022, representing a 14.4% growth. The peak median income was observed in 2021 at $157,728, followed by a slight decrease in 2022. This economic growth has occurred alongside the gradual increase in diversity, suggesting that the community has maintained its affluence while becoming more inclusive of different racial groups.