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Population & demographics
All demographic data for Bomarzo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Bomarzo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Bomarzo.
Bomarzo is a small municipality in the province of Viterbo, Lazio region. With a population of 1695 inhabitants and a density of 43 per km², it covers an area of 39.5 km². The average declared income is 22.413 €.
Bomarzo in numbers: the analysis
Demographic projections to 2050 estimate about 1,555 inhabitants for Bomarzo: an expected decline of 8.3% from today.
Compared with the provincial average of Viterbo (about 5,130 residents per municipality), Bomarzo is a markedly smaller centre.
Among the 60 municipalities of the province of Viterbo, Bomarzo ranks 44 by population.
The census record tells a story of long decline: in 1951 Bomarzo had 2,206 inhabitants; today (2026) it has 1,695 — 23.2% fewer.
The ageing index is one of the starkest signals: in Bomarzo there are 260 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1738 |
| 2020 | 1695 |
| 2021 | 1684 |
| 2022 | 1692 |
| 2023 | 1679 |
| 2024 | 1692 |
| 2025 | 1679 |
| 2026 | 1695 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 874 | 51.6% |
| Women | 821 | 48.4% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 11 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 12 |
| 2025 | 11 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2206 |
| 1961 | 1993 |
| 1971 | 1581 |
| 1981 | 1459 |
| 1991 | 1463 |
| 2001 | 1615 |
| 2011 | 1814 |
| 2019 | 1738 |
| 2020 | 1695 |
| 2021 | 1684 |
| 2022 | 1692 |
| 2023 | 1679 |
| 2024 | 1692 |
| 2025 | 1679 |
| 2026 | 1695 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1408 | 41.9% |
| Married | 1570 | 46.8% |
| Divorced | 112 | 3.3% |
| Widowed | 268 | 8.0% |
School-Age Population (2026)
Total 0-18 years: 244
| Valore | |
|---|---|
| Nido (0-2) | 29 |
| Infanzia (3-5) | 33 |
| Primaria (6-10) | 69 |
| Medie (11-13) | 44 |
| Superiori (14-18) | 69 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Bomarzo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/bomarzo-056009" title="Population pyramid of Bomarzo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/bomarzo-056009" alt="Population pyramid of Bomarzo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>