Which is cheaper, Puerto Rico or US Virgin Islands?

Puerto Rico is cheaper than the USVI on average. PR moderate is $2,675 per person per month versus USVI territory-wide $2,700. Against St Thomas specifically the gap narrows: $2,675 vs $2,750, a $75 monthly advantage to PR. The wider differences are operational, not just price. PR has 3.2 million residents, full US-mainland banking and chain retail coverage, deep medical infrastructure, more rental inventory in any price band, and an electricity grid that runs 3 to 4 times cheaper than USVI’s WAPA. The USVI offers a more island-scale daily life, easier mainland US travel via direct flights to East Coast hubs from St Thomas, and territory-specific tax incentives via the EDC programme that compete with PR’s Act 60 for the high-earner audience. For the full breakdown, see our St Thomas cost of living page.