Viterbo · Lazio
Data updated to year 2026
Population
12.979
inhabitants
Annual change
+28
people
Density
124
inh./km²
Area
104,9
km²
Live births
63
Deaths
186
Natural balance
-123
Migration balance
+18
| Year | Total | Males | Females | Births | Deaths | Nat. bal. | Migr. bal. |
|---|---|---|---|---|---|---|---|
| 2019 | 13.186 | 6399 | 6787 | 72 | 178 | -106 | -25 |
| 2020 | 13.053 | 6346 | 6707 | 69 | 189 | -120 | +62 |
| 2021 | 13.005 | 6307 | 6698 | 86 | 184 | -98 | +89 |
| 2022 | 13.020 | 6316 | 6704 |
| 86 |
| 204 |
| -118 |
| +38 |
| 2023 | 12.979 | 6283 | 6696 | 64 | 185 | -121 | +71 |
| 2024 | 13.008 | 6343 | 6665 | 63 | 186 | -123 | +18 |
| 2025 | 12.951 | 6350 | 6601 | N/D | N/D | N/D | N/D |
| 2026 | 12.979 | 6388 | 6591 | 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.