Viterbo · Lazio
Data updated to year 2026
Population
6351
inhabitants
Annual change
+10
people
Density
155
inh./km²
Area
41
km²
Live births
20
Deaths
76
Natural balance
-56
Migration balance
+26
| Year | Total | Males | Females | Births | Deaths | Nat. bal. | Migr. bal. |
|---|---|---|---|---|---|---|---|
| 2019 | 6532 | 3207 | 3325 | 35 | 63 | -28 | -30 |
| 2020 | 6448 | 3168 | 3280 | 37 | 53 | -16 | +15 |
| 2021 | 6357 | 3101 | 3256 | 35 | 77 | -42 | +43 |
| 2022 | 6377 | 3118 | 3259 |
| 30 |
| 74 |
| -44 |
| -10 |
| 2023 | 6339 | 3091 | 3248 | 26 | 65 | -39 | +10 |
| 2024 | 6354 | 3086 | 3268 | 20 | 76 | -56 | +26 |
| 2025 | 6341 | 3085 | 3256 | N/D | N/D | N/D | N/D |
| 2026 | 6351 | 3100 | 3251 | N/D | N/D | N/D | N/D |
Note: population data and demographic movements (births, deaths, balances) come from separate ISTAT sources. Annual totals may not exactly match the sum of balances.