By contrast, among the endangered populations, between 404 and 992 are believed to live in the Mediterranean, and just over 9,000 in the Central West and Central South Pacific, a spokeswoman for NOAA said.
Challenges remain, including climate change and sea level rise that may erode beach nesting habitat and raise the temperature of sand, which can "result in skewed sex ratios and lethal incubation conditions," the agencies noted in a 134-page document in the federal register.
Some commenters raised concern about a herpes-related virus called fibropapillomatosis, or FP, which is common among young green sea turtles in warmer waters, and can cause fatal tumors.
"We acknowledge the increasing distribution and incidence of FP, particularly in Florida. The threat is likely to increase" along with human-driven pollution of the shores, the agencies said.
Dangerous fishing gear and boat strikes also kill significant numbers of turtles each year.
"Sea turtles face a lot of threats, from plastic trash they swallow to sea-level rise to getting caught in fishing gear -- even poaching, in some parts of the world," said Catherine Kilduff of the Center for Biological Diversity.