Municipalities in Catalonia by social Security affiliates

Name: Municipalities in Catalonia by social Security affiliates, September 2025
Creator: Institut d'Estadística de Catalunya
License: Idescat open data terms (attribution required)

Barcelona had the highest social Security affiliates of 947 municipalities in September 2025, at 752,615. Sant Jaume de Frontanyà had the lowest, at 10. The median was 430 and the figure for Catalonia was 3.67 million. Source: the Institut d'Estadística de Catalunya.

Highest752,615Barcelona

Lowest10Sant Jaume de Frontanyà

Median430947 municipalities

Catalonia3,665,670History

Top 40 municipalities, September 2025

CSV Chart (SVG)

persons. Source: Idescat. Retrieved 2026-10-07.

Full ranking

Rank	Municipalities	September 2025 persons	Change on September 2024
1	Barcelona	752,615	+0.9%
2	L'Hospitalet de Llobregat	123,600	+2.7%
3	Terrassa	103,065	+2%
4	Sabadell	98,205	+2.5%
5	Badalona	98,035	+1.6%
6	Lleida	60,515	+2.6%
7	Tarragona	57,105	+1.3%
8	Mataró	56,290	+1.2%
9	Santa Coloma de Gramenet	50,560	+2.3%
10	Girona	48,520	+1.9%
11	Reus	46,025	+1.7%
12	Sant Cugat del Vallès	43,880	+0.5%
13	Cornellà de Llobregat	40,890	+2.4%
14	Sant Boi de Llobregat	37,960	+2%
15	Rubí	36,885	+2.3%
16	Manresa	32,505	+2.4%
17	Viladecans	31,835	+2.6%
18	Vilanova i la Geltrú	30,385	+3.3%
19	Castelldefels	30,350	0%
20	El Prat de Llobregat	29,195	+1.5%
21	Granollers	29,005	+1.9%
22	Cerdanyola del Vallès	25,565	+0.7%
23	Mollet del Vallès	23,605	+2%
24	Vic	22,920	+2.5%
25	Figueres	21,180	+2.2%
26	Sant Feliu de Llobregat	21,115	+1.3%
27	Gavà	21,055	+1.1%
28	Esplugues de Llobregat	20,200	+2.2%
29	Vilafranca del Penedès	18,505	+2.4%
30	Ripollet	18,085	+1.6%
31	Blanes	17,915	+1.2%
32	Olot	17,755	+1%
33	Igualada	17,460	+1.4%
34	Lloret de Mar	17,100	+2.3%
35	Sant Joan Despí	16,935	+2.3%
36	Montcada i Reixac	16,745	+0.8%
37	El Vendrell	16,395	+3.3%
38	Sant Adrià de Besòs	15,860	+0.3%
39	Cambrils	15,645	+1.9%
40	Barberà del Vallès	15,510	+1.4%
41	Salou	14,390	+2.8%
42	Sant Pere de Ribes	14,195	+1%
43	Salt	14,040	+3.1%
44	Tortosa	13,290	+1.2%
45	Sitges	13,235	+0.7%
46	Molins de Rei	12,860	+1.8%
47	Sant Vicenç dels Horts	12,820	+2.1%
48	Martorell	12,815	+3.5%
49	Premià de Mar	12,720	+1.1%
50	Calafell	12,585	+3.4%
51	Pineda de Mar	12,415	+3.5%
52	Sant Andreu de la Barca	12,365	+0.6%
53	Castellar del Vallès	12,080	+1.7%
54	Santa Perpètua de Mogoda	11,990	+1.2%
55	Olesa de Montserrat	11,240	+1.5%
56	El Masnou	11,225	+1.6%
57	Vila-seca	10,840	+2.7%
58	Valls	10,405	+1%
59	Esparreguera	10,360	+1.6%
60	Palafrugell	10,185	+0.4%
61	Les Franqueses del Vallès	9,795	+1.7%
62	Banyoles	9,735	+1.2%
63	Sant Feliu de Guíxols	9,560	+2%
64	Vilassar de Mar	9,285	-0.4%
65	Sant Quirze del Vallès	9,270	-0.2%
66	Sant Just Desvern	9,265	+0.1%
67	Parets del Vallès	8,975	+0.8%
68	Amposta	8,885	+2.1%
69	Cardedeu	8,865	+2.2%
70	Caldes de Montbui	8,785	+2%
71	Manlleu	8,715	+2.3%
72	Calella	8,710	+2.2%
73	Malgrat de Mar	8,545	+1.8%
74	Roses	8,425	-0.4%
75	Tàrrega	8,350	+2.6%
76	Sant Celoni	8,310	+1%
77	Palamós	8,175	+1.3%
78	La Garriga	8,115	+0.4%
78	Lliçà d'Amunt	8,115	+1.7%
80	Tordera	8,045	+2%
81	Piera	7,935	+2.1%
82	Cubelles	7,785	+3.2%
83	Montornès del Vallès	7,710	+1.4%
84	Corbera de Llobregat	7,660	+1.9%
84	Vallirana	7,660	+1.8%
86	Palau-solità i Plegamans	7,410	+2.5%
87	Torredembarra	7,250	+1.7%
88	Balaguer	7,170	+2.4%
89	Mollerussa	7,160	+2.1%
90	Arenys de Mar	7,035	+1.5%
91	Canovelles	6,940	+0.5%
92	Torelló	6,890	+3.2%
93	Berga	6,815	+1%
94	Santa Coloma de Farners	6,480	+2.8%
95	Canet de Mar	6,410	+2.6%
96	Castellbisbal	6,310	+1.6%
96	Cunit	6,310	+5%
98	Abrera	6,265	+1.7%
99	Montgat	6,075	+0.7%
100	La Ràpita	5,965	+1.5%
101	Sant Sadurní d'Anoia	5,955	+1%
102	Argentona	5,915	+1%
103	La Llagosta	5,765	+1.1%
104	Mont-roig del Camp	5,715	+3.7%
105	Pallejà	5,670	+1%
106	Torroella de Montgrí	5,550	-0.1%
107	Vilanova del Camí	5,495	+0.4%
108	La Roca del Vallès	5,485	+2.7%
109	Cassà de la Selva	5,285	+1.7%
110	Llinars del Vallès	5,230	+3.5%
111	Sant Andreu de Llavaneres	5,210	+0.1%
112	Castelló d'Empúries	5,110	+2.1%
113	Alcarràs	5,100	+2.6%
114	La Bisbal d'Empordà	5,075	+0.4%
115	Castell d'Aro, Platja d'Aro i s'Agaró	5,070	+0.8%
116	Calonge i Sant Antoni	5,030	+1.1%
117	Badia del Vallès	5,010	+0.8%
117	Sant Joan de Vilatorrada	5,010	+1.6%
119	Bigues i Riells del Fai	4,995	+1.5%
120	Masquefa	4,820	+2.4%
121	Deltebre	4,815	+1.6%
122	Palafolls	4,810	+1.1%
123	Premià de Dalt	4,760	+1.1%
124	Matadepera	4,650	+2.5%
125	Sentmenat	4,645	+1.6%
126	Cervelló	4,610	+0.8%
127	L'Ametlla del Vallès	4,595	+1.1%
128	Tiana	4,575	+1.4%
129	Ripoll	4,535	+0.3%
130	Santa Maria de Palautordera	4,530	+1.6%
131	Puigcerdà	4,440	0%
131	Sant Fruitós de Bages	4,440	+1%
133	La Seu d'Urgell	4,430	+0.1%
134	Arenys de Munt	4,335	+1%
135	L'Escala	4,320	+1.6%
136	Cervera	4,285	+2.6%
137	Sant Esteve Sesrovires	4,260	+3.4%
138	Polinyà	4,255	+1.9%
139	Alella	4,245	-0.1%
140	Solsona	4,240	+0.6%
141	Llagostera	4,225	+0.8%
142	Sant Fost de Campsentelles	4,215	+1.7%
143	Vilassar de Dalt	4,200	+0.7%
144	Sant Vicenç de Castellet	4,185	+1.3%
145	Santa Margarida de Montbui	4,140	+1.5%
146	Tona	4,135	+1.2%
147	Santa Coloma de Cervelló	4,130	+3.1%
148	Montmeló	4,080	+1.1%
149	Caldes de Malavella	3,985	+1.9%
150	Guissona	3,945	+2.3%
151	Vidreres	3,930	+2.7%
152	Vacarisses	3,895	+4.3%
153	Santa Eulàlia de Ronçana	3,790	+2.7%
154	Gelida	3,785	+2.2%
155	Centelles	3,715	+2.1%
156	Viladecavalls	3,700	+1.9%
157	Begues	3,640	+1.7%
158	Santpedor	3,605	+1%
159	Cabrils	3,515	+0.6%
159	Maçanet de la Selva	3,515	+2.8%
161	Roquetes	3,485	+1.5%
162	Alcanar	3,455	+0.6%
163	Santa Margarida i els Monjos	3,400	+0.6%
164	Montblanc	3,360	+0.7%
165	Sant Feliu de Codines	3,320	+4.6%
165	Sils	3,320	+2.3%
167	Roda de Berà	3,315	+2.8%
168	Lliçà de Vall	3,260	+0.9%
169	Taradell	3,230	-0.2%
170	Roda de Ter	3,210	+1.3%
171	Alpicat	3,205	+1.9%
172	Moià	3,165	+1.4%
173	Sant Antoni de Vilamajor	3,150	+1%
174	Torrelles de Llobregat	3,125	+1.6%
175	Dosrius	3,080	+0.7%
176	Sant Vicenç de Montalt	3,030	+2.9%
176	Teià	3,030	+3.2%
178	Riudoms	3,005	+0.2%
179	Vandellòs i l'Hospitalet de l'Infant	2,920	+1.2%
180	Arbúcies	2,880	+1.4%
181	Tossa de Mar	2,855	-0.2%
182	Celrà	2,845	+1.6%
183	Sallent	2,835	+1.4%
184	La Canonja	2,830	+2.4%
184	Vilanova del Vallès	2,830	-0.9%
186	Artés	2,820	+1.6%
187	Constantí	2,805	+4.5%
188	Navarcles	2,765	+0.7%
189	Almacelles	2,730	+1.5%
190	L'Ametlla de Mar	2,710	+1.3%
191	Les Borges Blanques	2,685	+1.3%
191	Navàs	2,685	+1.1%
193	Sarrià de Ter	2,675	+1.9%
194	Vielha e Mijaran	2,660	+0.8%
195	Santa Cristina d'Aro	2,650	+1.3%
196	La Selva del Camp	2,640	+1%
197	Canyelles	2,615	+3.8%
198	Agramunt	2,560	0%
199	Sant Hilari Sacalm	2,555	-0.4%
200	Vilafant	2,550	-0.2%
201	El Catllar	2,540	+4.1%
202	Anglès	2,535	+1.4%
203	Sant Pere de Vilamajor	2,510	+2.2%
204	Bescanó	2,485	+1.2%
205	Altafulla	2,480	+1.2%
206	Tremp	2,455	+1%
207	Torrefarrera	2,445	+1.5%
208	Súria	2,440	+2.7%
209	Els Pallaresos	2,420	+0.2%
210	Collbató	2,405	+2.3%
211	Alcover	2,400	+1.5%
212	Sant Pol de Mar	2,365	-0.4%
213	Cabrera de Mar	2,360	-0.4%
214	Porqueres	2,345	+0.4%
215	Bellpuig	2,330	+0.6%
216	L'Arboç	2,315	+1.8%
217	Capellades	2,310	-0.9%
218	Martorelles	2,195	+2.1%
219	Riells i Viabrea	2,190	+3.1%
220	Móra d'Ebre	2,185	+1.2%
221	El Papiol	2,125	+1.9%
222	Llançà	2,115	-0.5%
222	Ulldecona	2,115	+1.9%
224	Vilablareix	2,100	+5.5%
225	Sant Climent de Llobregat	2,060	+0.7%
226	Hostalric	2,055	+2.2%
226	La Pobla de Mafumet	2,055	+0.5%
228	Quart	1,975	+1%
229	Sant Gregori	1,965	+0.3%
230	Olivella	1,955	+4.8%
231	Gironella	1,940	-0.3%
231	L'Aldea	1,940	+2.9%
233	La Sénia	1,910	+1.3%
234	Seva	1,895	+0.3%
235	Olèrdola	1,880	+2.2%
236	Castellbell i el Vilar	1,860	+1.4%
237	Balenyà	1,855	+3.1%
238	El Pont de Vilomara i Rocafort	1,840	0%
239	El Morell	1,825	+0.8%
240	La Torre de Claramunt	1,820	+2.2%
241	Puig-reig	1,805	+1.1%
242	Santa Susanna	1,800	+2%
243	La Bisbal del Penedès	1,795	+4.7%
243	Sant Julià de Ramis	1,795	+0.8%
245	Breda	1,785	+0.6%
246	Sant Cebrià de Vallalta	1,780	+2%
247	Begur	1,775	-0.6%
247	Sant Hipòlit de Voltregà	1,775	+1.1%
249	Cardona	1,725	+0.3%
250	Alcoletge	1,700	-0.6%

Showing the top 250 of 947. The CSV download has every row.

Other periods

About this ranking

Workers registered with Social Security, by place of residence or work centre as stated by the source.

Every value in the ranking comes from the same publisher and the same period, so the municipalities are compared on one definition. Equal values share a rank.

How to cite

Institut d'Estadística de Catalunya (Idescat). Afiliats a la Seguretat Social per municipi de residència (afi). https://www.idescat.cat/pub/?id=afi. Retrieved 2026-10-07.

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Questions

Which municipality has the highest social Security affiliates?

Barcelona, with 752,615 in September 2025, according to the Institut d'Estadística de Catalunya.

Which municipality has the lowest social Security affiliates?

Sant Jaume de Frontanyà, with 10 in September 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Institut d'Estadística de Catalunya, Afiliats a la Seguretat Social per municipi de residència (afi). Retrieved 2026-10-07.