Homes in the neighborhood are a mix of midcentury modern, ranch-style and Spanish colonial architecture.

Source: https://www.forbes.com/sites/forbes-global-properties/2023/02/18/a-glass-rich-palm-springs-home-serves-up-cocktail-parties-with-midcentury-cred/

Known for its stunning natural beauty, Spanish colonial architecture, and vibrant cultural scene, the average home here now costs $1.65 million, down from $1.72 million.

Source: https://www.dailymail.co.uk/news/article-12277313/10-expensive-housing-markets-America-California-Palo-Altos-average-house-price-3m.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

This means his people wouldn't be under Spanish colonial rule, which makes Jamaica the most likely candidate for the island that he lives on.

Source: https://www.buzzfeed.com/sam_cleal/little-mermaid-live-action-movie-easter-eggs