Bevölkerungsentwicklung – Illertissen
Bevölkerung (Jahresende)
Jährliche Komponenten
| Jahr | Bevölkerung | Geburten | Sterbefälle | Natürlicher Saldo | Wanderungssaldo |
| 2024 |
18.433 |
– |
– |
– |
162 |
| 2023 |
18.362 |
– |
– |
– |
267 |
| 2022 |
18.138 |
– |
– |
– |
583 |
| 2021 |
17.843 |
– |
– |
– |
356 |
| 2020 |
17.559 |
– |
– |
– |
108 |
| 2019 |
17.482 |
– |
– |
– |
44 |
| 2018 |
17.473 |
– |
– |
– |
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 |