Foreign residents in Castelliri
Castelliri, in the province of Frosinone, is home to 2 French nationals — 0.06% of its 3,154 residents. That is the 1285th-highest concentration of French nationals of any of the 5,872 Italian comuni with at least 1,000 residents, and 83rd within Lazio.
Across the nationalities we track, Castelliri counts 5 foreign residents in total, 0.16% of the population. The largest groups are French nationals (2), Greeks (2), Spaniards (1).
Over the period 2019–2025, the number of French nationals in Castelliri has held roughly steady, from 2 to 2 (+0%).
Separately, ISTAT's census data shows 6.8% of Castelliri's population was born outside Italy — 3.8% outside the EU and 2.9% 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 |
|---|---|---|
| France | 2 | 0.06% |
| Greece | 2 | 0.06% |
| Spain | 1 | 0.03% |
| Argentina | 0 | 0.00% |
| Austria | 0 | 0.00% |
| Australia | 0 | 0.00% |
| Belgium | 0 | 0.00% |
| Brazil | 0 | 0.00% |
| Canada | 0 | 0.00% |
| Switzerland | 0 | 0.00% |
| Germany | 0 | 0.00% |
| Denmark | 0 | 0.00% |
| Finland | 0 | 0.00% |
| United Kingdom | 0 | 0.00% |
| Ireland | 0 | 0.00% |
| Japan | 0 | 0.00% |
| South Korea | 0 | 0.00% |
| Mexico | 0 | 0.00% |
| Netherlands | 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 | 2,941 | 93.25% |
| Born elsewhere in the EU | 92 | 2.92% |
| Born outside the EU | 121 | 3.84% |
French nationals over time
Quality of life in Frosinone
Full BES profile for Frosinone →Frosinone on cost vs quality of life (province-level) →
Property prices
Buying in Castelliri is far below the Frosinone average of €601/m². Averaged across 3 OMI micro-zones, which can differ substantially within the same town. OMI records no rental figures here.
A detached house here averages €450/m², against €313 for an apartment.
Compared street for street — houses and flats priced in the same neighbourhood — a house costs 33% 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.