Charleston, a neighborhood in Staten Island, New York, exhibits a demographic profile categorized as "Low Diversity" based on established terminology. As of 2022, the neighborhood has a White majority of 93% with a median income of $137,810. Charleston is characterized by a combination of suburban and rural features, including modern residential developments and preserved natural areas, such as the Clay Pit Ponds State Park Preserve.

Over the past decade, Charleston has maintained its status as a "Low Diversity" community. From 2013 to 2022, the White population has remained the dominant racial group, with percentages ranging from 71% to 95%. There was an increase in the White population percentage from 71% in 2013 to 90% in 2017, after which it stabilized around 93-95%. The Hispanic population, which was the second-largest group in 2013 at 11%, has declined to 3% by 2022. The Asian population has remained relatively stable, fluctuating between 1% and 5% throughout the decade. Black representation in the community has decreased from 3% in 2013 to effectively 0% in recent years.

The demographic shifts in Charleston correlate with economic changes. The median income has increased from $83,345 in 2013 to $137,810 in 2022, representing a growth of about 65% over the decade. This trend suggests a process of economic gentrification potentially accompanying the demographic changes. As the neighborhood became less diverse and more affluent, its population declined from a peak of 4,559 in 2016 to 3,082 in 2022. This could indicate a shift towards larger, more expensive housing units replacing more affordable, higher-density housing options.