I guess the closest you can get to that is to find a country that doesn't offer free housing and endless benefits. Without that, a nigger is going to struggle to survive so I would guess countries with either no benefit system OR ones that offer VERY limited benefits to immigrants in general - would be pretty much nigger free.
On a slightly different level, it *could* at least be possible for a good number of NMs to club together to buy a small island. Build some homes and then everyone who owns a share of the island has in their contract of ownership something along the lines of "if the landowner wishes to sell their land, they must offer it first to all the other co-owners and at a price that is the same as was originally paid. Any NEW person wanting to come to the island would have to be voted for - and receive (for example) at least 90% approval to be allowed on the island. Clearly niggers are not going to get a look in.
I guess with a little island and a good number of NMs, such a project may not be utterly impossible - just think, living on a little island with perhaps 50 - 100 other NM families. A little pub / bar, a couple of shops and some basic medical facilities like a small surgery - and near enough to the mainland for emergencies etc but far enough to deter "niggers on a burgling mission".
A well sited mast with a microwave link back to someone on the coastline and you could have high speed web access and VOIP based phone systems delivered locally by WiFi. Brilliant for people who can "work from home". Find somewhere fairly sunny, everyone pitches in with a solar farm and some Nickle Iron batteries (last for DECADES) and use surplus power to get distilled water from the sea for drinking - or some other form of desalination.
Each house has a supply of pumped salt water to flush the WC - and then drinking water for showers and taps. Output from showers and taps used for the garden and output from the WC to septic tanks. Water, Power, Telecomms - all independently other than a single business class link back to the mainland to a fibre broadband connection. But of course, best of all - UTTERLY nigger free.