Puerto Rico returned to negative net migration in 2025, losing 2,779 residents between July 1, 2024 and June 30, 2025 ^[9]. Negative migration has contributed to the island's loss of inhabitants in the 21st century ^[6]. A new study now calculates the multimillion cost to the Puerto Rico government of boricua migration between 2008 and 2022 ^[3]. The read here is that the exodus carries a price tag the treasury feels.