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Population & demographics
All demographic data for Tessennano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Tessennano.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Tessennano.
Tessennano is a small municipality in the province of Viterbo, Lazio region. With a population of 283 inhabitants and a density of 19 per km², it covers an area of 15.1 km². The average declared income is 17.929 €.
Tessennano in numbers: the analysis
The census record tells a story of long decline: in 1951 Tessennano had 814 inhabitants; today (2026) it has 283 — 65.2% fewer.
The ageing index is one of the starkest signals: in Tessennano there are 486 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 200 inhabitants for Tessennano: an expected decline of 29.3% from today.
Compared with the provincial average of Viterbo (about 5,130 residents per municipality), Tessennano is a markedly smaller centre.
Among the 60 municipalities of the province of Viterbo, Tessennano ranks 60 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 313 |
| 2020 | 306 |
| 2021 | 296 |
| 2022 | 288 |
| 2023 | 281 |
| 2024 | 288 |
| 2025 | 291 |
| 2026 | 283 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 144 | 50.9% |
| Women | 139 | 49.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 1 |
| 2022 | 0 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 1 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 814 |
| 1961 | 771 |
| 1971 | 611 |
| 1981 | 470 |
| 1991 | 472 |
| 2001 | 420 |
| 2011 | 350 |
| 2019 | 313 |
| 2020 | 306 |
| 2021 | 296 |
| 2022 | 288 |
| 2023 | 281 |
| 2024 | 288 |
| 2025 | 291 |
| 2026 | 283 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 218 | 37.5% |
| Married | 290 | 49.8% |
| Divorced | 32 | 5.5% |
| Widowed | 42 | 7.2% |
School-Age Population (2026)
Total 0-18 years: 26
| Valore | |
|---|---|
| Nido (0-2) | 6 |
| Infanzia (3-5) | 3 |
| Primaria (6-10) | 8 |
| Medie (11-13) | 2 |
| Superiori (14-18) | 7 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Tessennano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/tessennano-056051" title="Population pyramid of Tessennano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/tessennano-056051" alt="Population pyramid of Tessennano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>