The demographic shifts in Iselin have occurred alongside economic changes. The median income has shown an overall upward trend, rising from $105,341 in 2013 to $112,762 in 2022, with fluctuations in between. A substantial jump in median income to $122,675 occurred in 2021, coinciding with a period of increased diversity.

The population has remained relatively stable over the decade, with minor fluctuations. A noticeable dip occurred in 2020 (30,252) followed by a recovery in subsequent years, possibly influenced by the COVID-19 pandemic. The correlation between increasing diversity and rising median income suggests that the influx of diverse, highly skilled professionals, particularly in the Asian community, may have contributed to the area's economic growth.

Iselin's demographic evolution reflects trends seen in many suburban areas near major metropolitan centers, particularly those with strong technology and professional service sectors. The growth of the Asian population, especially Indian-Americans, is consistent with national trends of increased Asian immigration and their concentration in certain suburban communities.

The high median income in Iselin surpasses both the New Jersey state median ($89,296 in 2021) and the national median ($69,021 in 2021), indicating that this diverse community is particularly affluent compared to state and national averages. The neighborhood's transition to high diversity, coupled with economic prosperity, positions Iselin as an example of how increasing diversity can coincide with economic growth in suburban America. This trend suggests a complex interplay between demographic change and community prosperity.