Greenland

You can't retire to Greenland in any conventional sense because it's not an independent country — it's an autonomous territory within the Kingdom of Denmark, and Denmark doesn't offer a retirement visa program that would let you simply move there with passive income. If you're under 65, you'd need a job offer from a Greenlandic employer willing to sponsor a work permit, and if you're over 65, you're essentially barred from working there at all under current rules. There's no pathway for Americans to arrive with a pension or investment portfolio and set up permanent residence the way you might in Portugal or Panama.

Even if you somehow secured the right to live there — perhaps through Danish ancestry or an unusual employment situation — the practical realities are severe. Greenland has roughly 57,000 people spread across an island the size of Mexico, almost no roads connecting towns, and winter darkness that lasts months in most settlements. Imported goods make up nearly everything you'd buy, and while hard cost-of-living data is scarce, expect prices significantly higher than Denmark itself, where a gallon of milk already runs over $6. Healthcare exists but is limited outside Nuuk, and serious medical cases get airlifted to Denmark. You'd also be learning Greenlandic or Danish, as English isn't widely spoken outside the capital.

This is a place for someone with a genuine reason to be there — a researcher, a naturalist with Arctic funding, or perhaps someone with Inuit heritage returning to family — not for a retiree chasing low taxes or a change of scenery.