How is the age structure measured?

We rank by the share of permanent residents aged 65 and over from the BFS STATPOP register. The full table also shows every municipality’s share, so the youngest municipalities are visible as well.

← Canton Aargau overview

Ranking · Data 2023 · Source: BFS

The municipalities with the highest share of residents 65+ in canton Aargau (2023)

Mönthal has the highest share of residents aged 65 and over in canton Aargau: 33.8% (2023). It is followed by Olsberg (30%) and Biberstein (27.4%). Source: BFS, STATPOP 2023.

Ranking

BFS · STATPOP · 2023

Rank	Municipality	Residents 65+	Residents
1	Mönthal	33.8%	405
2	Olsberg	30%	367
3	Biberstein	27.4%	1'644
4	Mellikon	27%	237
5	Wegenstetten	25.9%	1'023
6	Widen	25.3%	3'876
7	Birrwil	24.3%	1'389
8	Oberrohrdorf	24.2%	4'255
9	Thalheim	24.2%	931
10	Habsburg	23.9%	435
11	Schneisingen	23.8%	1'562
12	Bözberg	23.7%	1'670
13	Vordemwald	23.6%	2'013
14	Schöftland	23.5%	4'555
15	Mettauertal	23.3%	2'158
16	Bellikon	23.2%	1'592
17	Densbüren	22.7%	771
18	Riniken	22.7%	1'555
19	Böttstein	22.6%	4'305
20	Zurzach	22.6%	8'237
21	Hellikon	22.5%	839
22	Magden	22.5%	3'899
23	Erlinsbach	22.4%	4'563
24	Remigen	22.4%	1'385
25	Schinznach	22.4%	2'430
26	Muhen	22.2%	4'112
27	Leuggern	22.2%	2'404
28	Gontenschwil	22.1%	2'182
29	Oberlunkhofen	22%	2'193
30	Gansingen	22%	1'097
31	Fislisbach	21.9%	6'090
32	Villnachern	21.9%	1'677
33	Brugg	21.6%	13'288
34	Obersiggenthal	21.5%	8'881
35	Beinwil am See	21.5%	3'601
36	Bottenwil	21.5%	868
37	Mandach	21.4%	346
38	Villigen	21.4%	2'139
39	Zuzgen	21.4%	897
40	Eggenwil	21.3%	1'031
41	Meisterschwanden	21.3%	3'267
42	Seengen	21.3%	4'411
43	Rheinfelden	21.3%	13'854
44	Klingnau	21.3%	3'673
45	Zufikon	21.2%	4'917
46	Schmiedrued	21.2%	1'152
47	Leutwil	21.1%	752
48	Wiliberg	21.1%	166
49	Zetzwil	21%	1'394
50	Niederrohrdorf	20.9%	4'648
51	Oberwil-Lieli	20.9%	2'605
52	Lupfig	20.9%	3'359
53	Oberkulm	20.9%	2'999
54	Laufenburg	20.9%	3'800
55	Kaisten	20.8%	2'948
56	Berikon	20.5%	4'934
57	Rüfenach	20.5%	874
58	Hausen	20.4%	3'796
59	Strengelbach	20.4%	5'104
60	Küttigen	20.3%	6'857
61	Bergdietikon	20.3%	2'946
62	Wettingen	20.3%	21'479
63	Zofingen	20.2%	12'796
64	Gebenstorf	20%	5'761
65	Möriken-Wildegg	20%	4'888
66	Uerkheim	20%	1'433
67	Frick	19.9%	5'741
68	Reinach	19.8%	9'499
69	Schlossrued	19.8%	873
70	Muri	19.8%	8'602
71	Kaiseraugst	19.8%	5'544
72	Wallbach	19.8%	2'081
73	Schupfart	19.7%	883
74	Untersiggenthal	19.6%	7'615
75	Schafisheim	19.6%	3'137
76	Brittnau	19.6%	4'257
77	Hirschthal	19.5%	1'756
78	Ennetbaden	19.5%	3'672
79	Ehrendingen	19.5%	4'906
80	Auenstein	19.5%	1'728
81	Mülligen	19.4%	1'078
82	Boniswil	19.4%	1'751
83	Zeiningen	19.4%	2'547
84	Murgenthal	19.4%	3'101
85	Remetschwil	19.3%	2'113
86	Unterkulm	19.3%	3'600
87	Böztal	19.3%	2'896
88	Kirchleerau	19.3%	935
89	Endingen	19.2%	2'703
90	Gränichen	19.1%	8'625
91	Leimbach	19.1%	533
92	Gipf-Oberfrick	19.1%	3'878
93	Seon	19.1%	5'571
94	Unterentfelden	19%	4'579
95	Künten	19%	1'917
96	Arni	19%	1'898
97	Oberentfelden	18.9%	8'907
98	Niederwil	18.9%	3'042
99	Wölflinswil	18.8%	1'041
100	Möhlin	18.8%	11'349
101	Wohlen	18.7%	17'481
102	Würenlos	18.6%	6'830
103	Windisch	18.6%	8'060
104	Teufenthal	18.6%	1'748
105	Döttingen	18.6%	4'473
106	Lengnau	18.6%	2'929
107	Bremgarten	18.5%	8'834
108	Hägglingen	18.5%	2'529
109	Obermumpf	18.5%	1'072
110	Aarau	18.4%	22'290
111	Büttikon	18.4%	1'144
112	Egliswil	18.3%	1'544
113	Fahrwangen	18.3%	2'497
114	Waltenschwil	18.3%	3'159
115	Full-Reuenthal	18.2%	994
116	Tegerfelden	18.1%	1'290
117	Würenlingen	18%	5'120
118	Menziken	18%	8'400
119	Wittnau	18%	1'411
120	Rothrist	18%	9'866
121	Freienwil	17.9%	1'116
122	Rottenschwil	17.9%	946
123	Stein	17.9%	3'504
124	Leibstadt	17.9%	1'596
125	Tägerig	17.8%	1'544
126	Oberhof	17.8%	580
127	Schwaderloch	17.8%	723
128	Safenwil	17.8%	4'564
129	Neuenhof	17.7%	9'087
130	Rudolfstetten-Friedlisberg	17.7%	4'599
131	Lenzburg	17.7%	11'184
132	Unterlunkhofen	17.6%	1'629
133	Dürrenäsch	17.6%	1'373
134	Herznach-Ueken	17.6%	2'634
135	Hallwil	17.6%	1'021
136	Buttwil	17.6%	1'276
137	Sins	17.6%	4'468
138	Birmenstorf	17.5%	3'040
139	Moosleerau	17.5%	957
140	Bettwil	17.4%	695
141	Suhr	17.2%	11'340
142	Killwangen	17.2%	2'242
143	Bünzen	17.2%	1'233
144	Mellingen	17.1%	6'170
145	Sarmenstorf	17.1%	3'118
146	Boswil	17.1%	3'124
147	Dottikon	17%	4'160
148	Eiken	17%	2'447
149	Mumpf	17%	1'549
150	Oeschgen	16.9%	1'176
151	Dintikon	16.9%	2'432
152	Siglistorf	16.9%	721
153	Veltheim	16.8%	1'563
154	Wohlenschwil	16.7%	1'867
155	Kölliken	16.7%	5'035
156	Sisseln	16.6%	1'666
157	Buchs	16.5%	8'429
158	Baden	16.5%	23'587
159	Fischbach-Göslikon	16.5%	1'706
160	Holziken	16.5%	1'742
161	Koblenz AG	16.5%	1'759
162	Stetten	16.2%	2'496
163	Uezwil	16.2%	549
164	Ammerswil	16.1%	795
165	Oftringen	16.1%	15'080
166	Islisberg	15.9%	690
167	Beinwil (Freiamt)	15.9%	1'279
168	Münchwilen	15.7%	1'070
169	Niederlenz	15.7%	4'896
170	Staufen	15.7%	4'306
171	Reitnau	15.7%	1'627
172	Villmergen	15.6%	8'132
173	Holderbank	15.6%	1'489
174	Birr	15.5%	4'718
175	Geltwil	15.5%	232
176	Zeihen	15.4%	1'276
177	Oberrüti	15.4%	1'600
178	Mühlau	15.2%	1'336
179	Staffelbach	15.2%	1'344
180	Jonen	15.1%	2'351
181	Birrhard	15.1%	921
182	Aristau	15.1%	1'646
183	Spreitenbach	15%	12'512
184	Rupperswil	14.9%	6'041
185	Mägenwil	14.8%	2'215
186	Hunzenschwil	14.8%	4'415
187	Kallern	14.7%	407
188	Merenschwand	14.5%	3'794
189	Aarburg	14.5%	8'891
190	Othmarsingen	14.1%	3'155
191	Brunegg	13.8%	907
192	Besenbüren	13.8%	639
193	Fisibach	13.7%	590
194	Dietwil	12.9%	1'445
195	Hendschiken	12.7%	1'351
196	Abtwil	12.1%	1'063
197	Auw	11.8%	2'290

How we measure this

BFS · STATPOP

Share of permanent residents aged 65 and over, per municipality, from the BFS STATPOP register (2023). The inverse reading — the youngest municipalities — is at the bottom of the table.

Frequently asked questions

Which municipality in canton Aargau has the oldest population?: Mönthal has the highest share of residents 65+ in canton Aargau: 33.8% as of 2023.
How is the age structure measured?: We rank by the share of permanent residents aged 65 and over from the BFS STATPOP register. The full table also shows every municipality’s share, so the youngest municipalities are visible as well.