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Population & demographics
All demographic data for Tarquinia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Tarquinia.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Tarquinia.
Tarquinia is a medium-sized municipality in the province of Viterbo, Lazio region. With a population of 15.862 inhabitants and a density of 57 per km², it covers an area of 278.4 km². The average declared income is 22.640 €.
Tarquinia in numbers: the analysis
The ageing index is one of the starkest signals: in Tarquinia there are 271 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 14,853 inhabitants for Tarquinia: an expected decline of 6.4% from today.
The average municipality in the province of Viterbo has about 5,130 residents: Tarquinia has 3.1 times as many.
By population, Tarquinia ranks no. 2 among the 60 municipalities of the province of Viterbo.
Tarquinia has grown substantially since 1951: from 10,552 inhabitants then to 15,862 in 2026, an increase of 50.3%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 16.169 |
| 2020 | 16.148 |
| 2021 | 16.153 |
| 2022 | 16.075 |
| 2023 | 16.026 |
| 2024 | 15.953 |
| 2025 | 15.856 |
| 2026 | 15.862 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 7751 | 48.9% |
| Women | 8111 | 51.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 96 |
| 2022 | 103 |
| 2023 | 77 |
| 2024 | 79 |
| 2025 | 84 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 10.552 |
| 1961 | 11.840 |
| 1971 | 12.364 |
| 1981 | 13.176 |
| 1991 | 14.020 |
| 2001 | 15.162 |
| 2011 | 16.016 |
| 2019 | 16.169 |
| 2020 | 16.148 |
| 2021 | 16.153 |
| 2022 | 16.075 |
| 2023 | 16.026 |
| 2024 | 15.953 |
| 2025 | 15.856 |
| 2026 | 15.862 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 13.236 | 41.7% |
| Married | 14.294 | 45.1% |
| Divorced | 1680 | 5.3% |
| Widowed | 2502 | 7.9% |
School-Age Population (2026)
Total 0-18 years: 2206
| Valore | |
|---|---|
| Nido (0-2) | 246 |
| Infanzia (3-5) | 299 |
| Primaria (6-10) | 540 |
| Medie (11-13) | 405 |
| Superiori (14-18) | 716 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Tarquinia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/tarquinia-056050" title="Population pyramid of Tarquinia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/tarquinia-056050" alt="Population pyramid of Tarquinia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>