Which is cheaper, Puerto Rico or US Virgin Islands?

Puerto Rico is cheaper than the USVI on average. PR moderate is $3,600 per person per month versus USVI territory-wide $3,775. Against St Thomas specifically the gap widens: $3,600 vs $3,975, a $375 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.