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Population & demographics
All demographic data for Monterosi: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Monterosi.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Monterosi.
Monterosi is a small municipality in the province of Viterbo, Lazio region. With a population of 4789 inhabitants and a density of 447 per km², it covers an area of 10.7 km². The average declared income is 22.877 €.
Monterosi in numbers: the analysis
Looking ahead to 2050, projections give Monterosi about 5,997 inhabitants, up 25.2% from today.
Among the 60 municipalities of the province of Viterbo, Monterosi ranks 19 by population.
Monterosi has grown substantially since 1951: from 979 inhabitants then to 4,789 in 2026, an increase of 389.2%.
The generational balance is in line with the norm: the ageing index of Monterosi is 166 (over-65s per 100 under-14s).
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4485 |
| 2020 | 4574 |
| 2021 | 4729 |
| 2022 | 4775 |
| 2023 | 4811 |
| 2024 | 4759 |
| 2025 | 4759 |
| 2026 | 4789 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2387 | 49.8% |
| Women | 2402 | 50.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 33 |
| 2022 | 29 |
| 2023 | 28 |
| 2024 | 29 |
| 2025 | 24 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 979 |
| 1961 | 986 |
| 1971 | 1009 |
| 1981 | 1324 |
| 1991 | 1751 |
| 2001 | 2381 |
| 2011 | 3868 |
| 2019 | 4485 |
| 2020 | 4574 |
| 2021 | 4729 |
| 2022 | 4775 |
| 2023 | 4811 |
| 2024 | 4759 |
| 2025 | 4759 |
| 2026 | 4789 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 4326 | 45.5% |
| Married | 4234 | 44.5% |
| Divorced | 456 | 4.8% |
| Widowed | 502 | 5.3% |
School-Age Population (2026)
Total 0-18 years: 830
| Valore | |
|---|---|
| Nido (0-2) | 80 |
| Infanzia (3-5) | 105 |
| Primaria (6-10) | 208 |
| Medie (11-13) | 150 |
| Superiori (14-18) | 287 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Monterosi population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/monterosi-056038" title="Population pyramid of Monterosi — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/monterosi-056038" alt="Population pyramid of Monterosi — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>