Foreign residents in Castelletto d'Erro
Castelletto d'Erro, in the province of Alessandria, is home to 4 Danes — 3.15% of its 127 residents. That is notable for a comune of its size.
Across the nationalities we track, Castelletto d'Erro counts 12 foreign residents in total, 9.45% of the population. The largest groups are Danes (4), Dutch nationals (4), Swiss nationals (3).
Over the period 2019–2025, the number of Danes in Castelletto d'Erro has risen, from 0 to 4.
Separately, ISTAT's census data shows 15.0% of Castelletto d'Erro's population was born outside Italy — 7.1% outside the EU and 7.9% elsewhere in the EU. ISTAT does not publish this broken down by specific country at comune level, so it isn't directly comparable to the per-nationality citizenship figures above.
Population over time
By nationality
| Nationality | Citizens | Share |
|---|---|---|
| Denmark | 4 | 3.15% |
| Netherlands | 4 | 3.15% |
| Switzerland | 3 | 2.36% |
| United Kingdom | 1 | 0.79% |
| Argentina | 0 | 0.00% |
| Austria | 0 | 0.00% |
| Australia | 0 | 0.00% |
| Belgium | 0 | 0.00% |
| Brazil | 0 | 0.00% |
| Canada | 0 | 0.00% |
| Germany | 0 | 0.00% |
| Spain | 0 | 0.00% |
| Finland | 0 | 0.00% |
| France | 0 | 0.00% |
| Greece | 0 | 0.00% |
| Ireland | 0 | 0.00% |
| Japan | 0 | 0.00% |
| South Korea | 0 | 0.00% |
| Mexico | 0 | 0.00% |
| Norway | 0 | 0.00% |
| Portugal | 0 | 0.00% |
| Russia | 0 | 0.00% |
| Sweden | 0 | 0.00% |
| United States | 0 | 0.00% |
| Venezuela | 0 | 0.00% |
Country of birth
| Group | Residents | Share |
|---|---|---|
| Born in Italy | 108 | 85.04% |
| Born elsewhere in the EU | 10 | 7.87% |
| Born outside the EU | 9 | 7.09% |
Danes over time
Quality of life in Alessandria
Full BES profile for Alessandria →Alessandria on cost vs quality of life (province-level) →
Property prices
About the Alessandria average of €639/m². Averaged across 2 OMI micro-zones, which can differ substantially within the same town.
23.7 years of rent here equal the purchase price, close to the national median of 22.2 years.
A ratio between two OMI prices, not a return on investment. It leaves out purchase taxes, IMU, maintenance, financing and the months a place sits empty — all of which push the real figure up. Useful for the question it does answer: whether this town looks expensive to buy relative to what renting in it costs.
A detached house here averages €805/m², against €655 for an apartment.
Compared street for street — houses and flats priced in the same neighbourhood — a house costs 13% more per square metre.
OMI prices “Ville e Villini” separately from the apartments every other figure on this page describes. Nationally a house costs about 14% more per square metre, but in 450 comuni it costs less — worth checking rather than assuming.