Roma · Lazio
Population of Zagarolo
Data updated to year 2026
Population
18.963
inhabitants
Annual change
+87
people
Density
N/D
inh./km²
Area
N/D
km²
Natural and migratory movement (2025)
Live births
102
Deaths
157
Natural balance
-55
Migration balance
+49
Historical population trend
| Year | Total | Males | Females | Births | Deaths | Nat. bal. | Migr. bal. |
|---|---|---|---|---|---|---|---|
| 2019 | 17.713 | 8927 | 8786 | 128 | 140 | -12 | +147 |
| 2020 | 17.912 | 8986 | 8926 | 131 | 132 | -1 | +187 |
| 2021 | 18.010 | 9032 | 8978 | 125 | 178 | -53 | +177 |
| 2022 | 18.344 | 9272 | 9072 | 155 | 166 | -11 | +106 |
| 2023 | 18.449 | 9317 | 9132 | 136 | 172 | -36 | +151 |
| 2024 | 18.645 | 9443 | 9202 | 122 | 133 | -11 | +165 |
| 2025 | 18.876 | 9584 | 9292 | 102 | 157 | -55 | +49 |
| 2026 | 18.963 | 9638 | 9325 | 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.