Bevölkerungsentwicklung – Illertissen
Jährliche Komponenten
| Jahr | Bevölkerung | Geburten | Sterbefälle | Natürlicher Saldo | Wanderungssaldo |
|---|---|---|---|---|---|
| 2025 | 18.484 | – | 240 | – | – |
| 2024 | 18.433 | 161 | 247 | -86 | 162 |
| 2023 | 18.362 | 168 | 214 | -46 | 267 |
| 2022 | 18.138 | 176 | 228 | -52 | 583 |
| 2021 | 17.843 | 174 | 246 | -72 | 356 |
| 2020 | 17.559 | 180 | 203 | -23 | 108 |
| 2019 | 17.482 | 165 | 195 | -30 | 44 |
| 2018 | 17.473 | 164 | 171 | -7 | 213 |
| 2017 | 17.266 | 129 | 161 | -32 | 168 |
| 2016 | 17.130 | 155 | 192 | -37 | 267 |
| 2015 | 16.904 | 161 | 170 | -9 | 184 |
| 2014 | 16.730 | 146 | 177 | -31 | -14 |
| 2013 | 16.775 | 140 | 178 | -38 | 165 |
| 2012 | 16.647 | 149 | 166 | -17 | 207 |
| 2011 | 16.455 | 131 | 190 | -59 | -39 |
| 2010 | 16.425 | 134 | 152 | -18 | -45 |
| 2009 | 16.489 | 118 | 151 | -33 | 58 |
| 2008 | 16.465 | 131 | 162 | -31 | 56 |