The zip code 11721, representing Centerport, New York, is classified as having "Low Diversity" with a predominant White Majority as of 2022. The area has a median income of $176,975 and a population of 6,073. This affluent community has maintained its predominantly white demographic over the past decade, with subtle shifts towards increased diversity.

From 2013 to 2022, Centerport has consistently maintained its status as a White Majority area, with the white population never dropping below 86%. The white population decreased from 93% in 2013 to 87% in 2022. The Asian population increased from 2% to 4% during this period. The Hispanic population grew from 3% to 4%. The 'Other' category emerged, reaching 4% by 2022. These changes suggest a slow transition towards a more diverse community, though it remains in the "Low Diversity" category.

The median income in Centerport has increased from $130,033 in 2013 to $176,975 in 2022, a rise of about 36%. This trend indicates growing affluence in the area, potentially influencing or being influenced by the subtle demographic shifts. The rising income levels may be attracting a more diverse, yet still affluent, population. The increase in Asian and Hispanic populations coincides with the income growth, suggesting these new residents are likely high-income earners. The population has remained relatively stable, increasing from 5,964 in 2013 to 6,073 in 2022.