St. Nicholas, a neighborhood in Jacksonville, Florida, exhibits a Moderate Diversity profile based on its 2022 racial composition. The neighborhood has a population of 1,528 and a median income of $40,514. St. Nicholas is known for its historic charm, featuring a blend of architectural styles from different eras, which reflects its evolving demographic makeup.

Over the past decade, St. Nicholas has undergone significant demographic changes. In 2013, the neighborhood had a White Majority (58%). By 2022, it transitioned to Moderate Diversity, with white residents comprising 45% of the population. The percentage of Black residents increased from 32% in 2013 to 34% in 2021, before settling at 32% in 2022. Hispanic representation grew from 2% in 2013 to 24% in 2019, though it decreased to 9% by 2022. The Asian population has fluctuated, peaking at 7% in 2013 and 2015, but settling at 5% in 2022. By 2022, 8% of residents identified as 'Other', indicating increasing diversity beyond traditional racial categories.

The economic landscape of St. Nicholas has shown volatility. Median income peaked at $52,366 in 2021, an increase from $36,537 in 2020. However, it decreased to $40,514 in 2022. The population has fluctuated, with a low of 1,386 in 2012 and a high of 1,784 in 2010. The 2022 population of 1,528 represents a slight decrease from recent years. The increase in diversity generally corresponded with periods of lower median income (2019-2020), while the income peak in 2021 coincided with a slight reversal in diversity trends.