Foreign residents in Trevi nel Lazio
Trevi nel Lazio, in the province of Frosinone, is home to 3 Mexicans — 0.18% of its 1,701 residents. That is the 11th-highest concentration of Mexicans of any of the 5,872 Italian comuni with at least 1,000 residents, and 2nd within Lazio.
Across the nationalities we track, Trevi nel Lazio counts 8 foreign residents in total, 0.47% of the population. The largest groups are Mexicans (3), Russians (2), Brazilians (1).
Over the period 2019–2025, the number of Mexicans in Trevi nel Lazio has fallen, from 4 to 3 (-25%).
Separately, ISTAT's census data shows 6.9% of Trevi nel Lazio's population was born outside Italy — 5.2% outside the EU and 1.6% 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 |
|---|---|---|
| Mexico | 3 | 0.18% |
| Russia | 2 | 0.12% |
| Brazil | 1 | 0.06% |
| Germany | 1 | 0.06% |
| United States | 1 | 0.06% |
| Argentina | 0 | 0.00% |
| Austria | 0 | 0.00% |
| Australia | 0 | 0.00% |
| Belgium | 0 | 0.00% |
| Canada | 0 | 0.00% |
| Switzerland | 0 | 0.00% |
| Denmark | 0 | 0.00% |
| Spain | 0 | 0.00% |
| Finland | 0 | 0.00% |
| France | 0 | 0.00% |
| United Kingdom | 0 | 0.00% |
| Greece | 0 | 0.00% |
| Ireland | 0 | 0.00% |
| Japan | 0 | 0.00% |
| South Korea | 0 | 0.00% |
| Netherlands | 0 | 0.00% |
| Norway | 0 | 0.00% |
| Portugal | 0 | 0.00% |
| Sweden | 0 | 0.00% |
| Venezuela | 0 | 0.00% |
Country of birth
| Group | Residents | Share |
|---|---|---|
| Born in Italy | 1,584 | 93.12% |
| Born elsewhere in the EU | 28 | 1.65% |
| Born outside the EU | 89 | 5.23% |
Mexicans 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 Trevi nel Lazio is well 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.
Housing here in excellent condition costs 32% more than ordinary condition — €536/m² against €407.
That gap is what the market charges for a place you don’t have to work on. It is not what the work would cost you — OMI prices property, not builders.
A detached house here averages €538/m², against €407 for an apartment.
Compared street for street — houses and flats priced in the same neighbourhood — a house costs 24% 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.