I use a virtual mail box in the USA and I need to have them forward a letter to me on the Island of Saba in the Caribbean. It's part of the Netherlands. What country name should I use so the US Postal Service sends it to the right place? If I say "Netherlands," I'm afraid it'll get mis-sent to Europe, but Saba isn't a country. I've seen several different answers online (Dutch Antillies, Netherlands Caribbean, others) but I can't figure out what the official one would be for the USPS
The USPS advises you to address such mail to the "country" of "Bonaire, Sint Eustatius, and Saba". So you should probably address your mail as something like:
Mx. X. [local street or box number] Saba BONAIRE, SINT EUSTATIUS, AND SABA
The current pandemic is making worldwide logistics troublesome, and this is probably not a destination to which the USPS sends a lot of mail even during normal times, so it might take a bit of time for your mail to arrive, and it is even possible it gets lost entirely in the bowels of some postal office somewhere in the world. You might want to test with some non-critical correspondence if possible.