Which municipality in canton St. Gallen is the most densely populated?

Rorschach is the most densely populated municipality in canton St. Gallen with 5'561 residents per km² (2023).

How is population density calculated?

Permanent residents (BFS STATPOP) divided by the official municipal area in km² from swisstopo swissBOUNDARIES3D, including lakes and unproductive land.

← Canton St. Gallen overview

Ranking · Data 2023 · Source: BFS

The most densely populated municipalities in canton St. Gallen (2023)

Rorschach is the most densely populated municipality in canton St. Gallen: 5'561 residents per km² (2023). It is followed by Widnau (2'450/km²) and Goldach (2'057/km²). Sources: BFS population, swisstopo boundaries.

Ranking

BFS + swisstopo · 2023

Rank	Municipality	Density	Residents
1	Rorschach	5'561	9'955
2	Widnau	2'450	10'337
3	Goldach	2'057	9'709
4	St. Gallen	1'986	78'213
5	Au	1'824	8'481
6	Rheineck	1'591	3'516
7	Wil	1'200	24'980
8	Rebstein	1'151	5'051
9	Rorschacherberg	1'082	7'685
10	Uzwil	985	14'279
11	St. Margrethen	955	6'558
12	Uznach	930	7'014
13	Flawil	927	10'631
14	Rapperswil-Jona	913	28'640
15	Buchs	873	13'931
16	Wittenbach	822	10'026
17	Tübach	801	1'594
18	Steinach	794	3'580
19	Balgach	788	5'139
20	Lichtensteig	737	2'079
21	Thal	732	7'097
22	Berneck	710	3'989
23	Schmerikon	696	4'162
24	Sargans	689	6'522
25	Gaiserwald	682	8'609
26	Gossau	671	18'454
27	Diepoldsau	616	6'928
28	Zuzwil	560	5'026
29	Marbach	484	2'118
30	Oberuzwil	474	6'674
31	Mörschwil	372	3'662
32	Jonschwil	366	4'023
33	Andwil	337	2'128
34	Weesen	325	1'871
35	Altstätten	316	12'456
36	Eichberg	289	1'571
37	Degersheim	285	4'132
38	Eggersriet	278	2'475
39	Kaltbrunn	273	5'084
40	Rüthi	272	2'542
41	Berg	269	1'012
42	Oberriet	269	9'291
43	Bad Ragaz	269	6'835
44	Oberbüren	263	4'660
45	Bütschwil-Ganterschwil	238	5'202
46	Kirchberg	229	9'755
47	Niederhelfenschwil	199	3'256
48	Eschenbach	185	10'169
49	Benken	184	3'035
50	Wattwil	179	9'161
51	Sevelen	178	5'392
52	Gommiswald	168	5'657
53	Gams	167	3'711
54	Häggenschwil	158	1'431
55	Vilters-Wangs	155	5'057
56	Sennwald	151	6'269
57	Untereggen	144	1'027
58	Grabs	135	7'402
59	Wartau	132	5'496
60	Muolen	122	1'257
61	Walenstadt	120	5'852
62	Ebnat-Kappel	117	5'092
63	Lütisburg	117	1'645
64	Waldkirch	113	3'544
65	Schänis	104	4'154
66	Niederbüren	95	1'497
67	Neckertal	79	6'437
68	Flums	71	5'347
69	Mels	69	9'538
70	Mosnang	59	2'969
71	Quarten	42	3'085
72	Nesslau	41	3'833
73	Amden	40	1'906
74	Wildhaus-Alt St. Johann	30	2'618
75	Pfäfers	12	1'601

How we measure this

BFS + swisstopo

Permanent residents (BFS STATPOP 2023) divided by the official municipal area from swissBOUNDARIES3D (swisstopo). Lakes and unproductive areas are included in the official area figure.

Frequently asked questions

Which municipality in canton St. Gallen is the most densely populated?: Rorschach is the most densely populated municipality in canton St. Gallen with 5'561 residents per km² (2023).
How is population density calculated?: Permanent residents (BFS STATPOP) divided by the official municipal area in km² from swisstopo swissBOUNDARIES3D, including lakes and unproductive land.