Municipalities of Spain by social Security affiliates

Name: Municipalities of Spain by social Security affiliates, December 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 December 2025, at 757,245. Sant Jaume de Frontanyà had the lowest, at 10. The median was 430. Source: the Institut d'Estadística de Catalunya.

Highest757,245Barcelona

Lowest10Sant Jaume de Frontanyà

Median430947 municipalities

Top 40 municipalities, December 2025

CSV Chart (SVG)

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

Full ranking

Rank	Municipalities	December 2025 persons	Change on December 2024
1	Barcelona	757,245	+1%
2	L'Hospitalet de Llobregat	124,800	+2.8%
3	Terrassa	104,220	+2.3%
4	Sabadell	99,375	+2.9%
5	Badalona	98,800	+1.8%
6	Lleida	60,195	+2.6%
7	Mataró	56,905	+1.7%
8	Tarragona	56,000	+1.9%
9	Santa Coloma de Gramenet	51,145	+2.3%
10	Girona	48,590	+1.9%
11	Reus	44,605	+2.3%
12	Sant Cugat del Vallès	44,350	+0.7%
13	Cornellà de Llobregat	41,495	+2.6%
14	Sant Boi de Llobregat	38,165	+2.1%
15	Rubí	37,070	+1.9%
16	Manresa	32,685	+3.2%
17	Viladecans	32,280	+3.1%
18	Castelldefels	30,535	+0.6%
19	Vilanova i la Geltrú	30,480	+3.2%
20	El Prat de Llobregat	29,490	+1.8%
21	Granollers	28,980	+2.6%
22	Cerdanyola del Vallès	25,885	+0.9%
23	Mollet del Vallès	23,570	+2.1%
24	Vic	23,165	+2.4%
25	Sant Feliu de Llobregat	21,370	+1.6%
26	Gavà	21,245	+1.1%
27	Figueres	20,915	+2.3%
28	Esplugues de Llobregat	20,435	+2.4%
29	Vilafranca del Penedès	18,515	+2.6%
30	Ripollet	18,225	+2.1%
31	Olot	17,795	+1.4%
32	Igualada	17,505	+1.7%
33	Sant Joan Despí	17,075	+1.5%
34	Montcada i Reixac	16,990	+2.1%
35	Blanes	16,385	+1.4%
36	El Vendrell	16,250	+4.4%
37	Sant Adrià de Besòs	16,055	+1.5%
38	Barberà del Vallès	15,550	+1.7%
39	Cambrils	14,215	+2.5%
40	Sant Pere de Ribes	14,125	+1.6%
41	Salt	13,870	+3.2%
42	Tortosa	13,685	+1.8%
43	Lloret de Mar	13,075	+3%
44	Sitges	13,005	+0.9%
45	Molins de Rei	12,995	+1.6%
46	Sant Vicenç dels Horts	12,830	+1.7%
47	Premià de Mar	12,765	+0.9%
48	Martorell	12,700	+3.3%
49	Calafell	12,430	+3.2%
50	Sant Andreu de la Barca	12,335	+0.7%
51	Castellar del Vallès	12,195	+1.6%
52	Santa Perpètua de Mogoda	12,040	+2%
53	El Masnou	11,335	+1.9%
54	Olesa de Montserrat	11,305	+2.3%
55	Pineda de Mar	11,210	+2.6%
56	Salou	10,740	+3.9%
57	Valls	10,370	+1.9%
58	Esparreguera	10,305	+2.5%
59	Les Franqueses del Vallès	9,835	+2.9%
60	Vila-seca	9,805	+3.5%
61	Banyoles	9,700	+1.4%
62	Sant Quirze del Vallès	9,410	+0.7%
63	Palafrugell	9,350	+1.6%
63	Sant Just Desvern	9,350	-0.1%
65	Vilassar de Mar	9,315	-0.2%
66	Sant Feliu de Guíxols	9,000	+2%
67	Parets del Vallès	8,970	+1%
68	Amposta	8,945	+1.4%
69	Cardedeu	8,915	+2.2%
70	Caldes de Montbui	8,800	+1.9%
71	Manlleu	8,675	+2.3%
72	Tàrrega	8,380	+2.8%
73	Sant Celoni	8,355	+1.8%
74	La Garriga	8,240	+1.5%
75	Lliçà d'Amunt	8,140	+1.4%
76	Piera	7,975	+4.5%
77	Tordera	7,850	+3%
78	Cubelles	7,795	+3.8%
78	Palamós	7,795	+2.1%
80	Calella	7,780	+1.7%
81	Vallirana	7,740	+1.4%
82	Corbera de Llobregat	7,720	+2%
83	Montornès del Vallès	7,705	+1.8%
84	Malgrat de Mar	7,555	+2.2%
85	Palau-solità i Plegamans	7,400	+1.9%
86	Roses	7,295	+1.2%
87	Torredembarra	7,085	+2.4%
88	Arenys de Mar	7,065	+1.9%
89	Balaguer	7,050	+3.7%
90	Mollerussa	6,990	+1.1%
91	Canovelles	6,910	+2.4%
92	Berga	6,790	+0.8%
93	Torelló	6,775	+1.8%
94	Santa Coloma de Farners	6,465	+2%
95	Canet de Mar	6,400	+3.3%
96	Cunit	6,355	+5.3%
97	Castellbisbal	6,350	+1.7%
98	Abrera	6,215	+1.5%
99	Montgat	6,110	+0.7%
100	La Ràpita	5,945	+2.7%
101	Argentona	5,940	+1.7%
102	Sant Sadurní d'Anoia	5,885	+0.2%
103	La Llagosta	5,775	+0.7%
104	Pallejà	5,710	+1.5%
105	La Roca del Vallès	5,585	+3.1%
106	Vilanova del Camí	5,510	+1.7%
107	Mont-roig del Camp	5,460	+6.2%
108	Sant Andreu de Llavaneres	5,275	+1.1%
109	Cassà de la Selva	5,250	+1.5%
110	Llinars del Vallès	5,245	+2.6%
111	Bigues i Riells del Fai	5,075	+2.9%
112	Sant Joan de Vilatorrada	5,030	+2%
113	Badia del Vallès	5,020	+1.2%
114	Calonge i Sant Antoni	4,990	+3.1%
115	Alcarràs	4,895	+3.8%
116	Torroella de Montgrí	4,885	+2.1%
117	La Bisbal d'Empordà	4,870	+0.6%
118	Masquefa	4,820	+3.3%
119	Castell d'Aro, Platja d'Aro i s'Agaró	4,810	+4%
120	Premià de Dalt	4,805	+1.8%
121	Castelló d'Empúries	4,775	+1.8%
122	Deltebre	4,770	+3.2%
123	Matadepera	4,720	+2.4%
124	Cervelló	4,675	+2.1%
125	Sentmenat	4,660	+2.2%
126	Tiana	4,625	+2.4%
127	L'Ametlla del Vallès	4,620	+1.9%
128	Palafolls	4,600	+1.2%
129	Puigcerdà	4,590	+2.1%
130	Santa Maria de Palautordera	4,535	+0.6%
131	La Seu d'Urgell	4,530	+1%
132	Ripoll	4,520	+0.1%
133	Sant Fruitós de Bages	4,450	+0.9%
134	Arenys de Munt	4,345	+0.9%
135	Alella	4,285	-0.6%
135	Sant Esteve Sesrovires	4,285	+2.9%
135	Solsona	4,285	+1.9%
138	Sant Fost de Campsentelles	4,280	+1.8%
139	Cervera	4,270	+2%
140	Polinyà	4,255	+1.7%
141	Vilassar de Dalt	4,225	+1.3%
142	Llagostera	4,210	+1.4%
143	Tona	4,180	+2.1%
144	Santa Coloma de Cervelló	4,175	+2.5%
145	Sant Vicenç de Castellet	4,160	+1.5%
146	Santa Margarida de Montbui	4,120	+2.6%
147	Montmeló	4,095	+2.4%
148	Caldes de Malavella	4,020	+3.2%
149	Guissona	3,950	+2.1%
150	Vacarisses	3,945	+4.2%
151	L'Escala	3,910	+2.1%
152	Vidreres	3,800	+1.6%
153	Santa Eulàlia de Ronçana	3,785	+2.6%
154	Gelida	3,780	+1.2%
155	Viladecavalls	3,750	+2%
156	Centelles	3,715	+1.2%
157	Begues	3,680	+1.9%
158	Santpedor	3,610	+1.7%
159	Cabrils	3,585	+1%
159	Roquetes	3,585	+3.2%
161	Alcanar	3,580	-0.8%
162	Maçanet de la Selva	3,485	+4.3%
163	Santa Margarida i els Monjos	3,400	+1.6%
164	Montblanc	3,380	+2.9%
165	Sant Feliu de Codines	3,325	+3.3%
166	Roda de Berà	3,285	+5%
166	Sils	3,285	+2.2%
168	Lliçà de Vall	3,280	+2%
169	Taradell	3,265	+1.4%
170	Alpicat	3,250	+3.2%
171	Roda de Ter	3,215	+2.1%
172	Moià	3,155	+2.3%
172	Torrelles de Llobregat	3,155	+1.1%
174	Sant Antoni de Vilamajor	3,150	+1.4%
175	Dosrius	3,120	+2.8%
176	Teià	3,085	+3.9%
177	Vielha e Mijaran	3,080	+1.3%
178	Sant Vicenç de Montalt	3,045	+3%
179	Riudoms	2,975	0%
180	Arbúcies	2,915	+3.6%
181	Vilanova del Vallès	2,855	+0.5%
182	Celrà	2,840	+1.6%
182	Sallent	2,840	+1.1%
182	Vandellòs i l'Hospitalet de l'Infant	2,840	+1.8%
185	Artés	2,770	+1.8%
185	Navarcles	2,770	+0.9%
187	La Canonja	2,750	0%
188	Les Borges Blanques	2,740	+2.6%
189	Almacelles	2,725	+2.4%
190	Navàs	2,710	+1.5%
190	Sarrià de Ter	2,710	+3%
192	Constantí	2,705	+1.5%
193	La Selva del Camp	2,640	+1.3%
194	Canyelles	2,635	+4.6%
195	Santa Cristina d'Aro	2,605	+2.2%
196	Sant Hilari Sacalm	2,580	+1.6%
197	El Catllar	2,565	+4.5%
198	L'Ametlla de Mar	2,560	+2.6%
198	Vilafant	2,560	+0.4%
200	Agramunt	2,530	+1.2%
201	Anglès	2,525	0%
202	Bescanó	2,515	+1.8%
203	Sant Pere de Vilamajor	2,495	+0.8%
204	Súria	2,450	+2.7%
205	Tremp	2,445	+0.4%
206	Els Pallaresos	2,440	+1.5%
207	Collbató	2,430	+2.3%
208	Torrefarrera	2,415	-0.4%
209	Altafulla	2,405	+2.1%
210	Alcover	2,390	+3.5%
211	Cabrera de Mar	2,380	+0.8%
212	Sant Pol de Mar	2,360	+1.9%
213	Porqueres	2,345	+1.1%
214	L'Arboç	2,330	+3.1%
215	Capellades	2,290	0%
216	Bellpuig	2,270	+0.2%
217	Martorelles	2,225	+3.7%
218	Móra d'Ebre	2,215	+3.3%
219	Riells i Viabrea	2,200	+3%
220	Ulldecona	2,195	+0.2%
221	El Papiol	2,180	+3.6%
222	Vilablareix	2,145	+6.5%
223	Sant Climent de Llobregat	2,090	+0.7%
224	La Pobla de Mafumet	2,060	+1.2%
225	Hostalric	2,040	+2.5%
226	Llançà	2,025	0%
227	Quart	2,020	+2.5%
228	Sant Gregori	2,010	+2.3%
229	Tossa de Mar	2,000	+2.8%
230	L'Aldea	1,980	+3.4%
230	Olivella	1,980	+7%
232	Gironella	1,940	-0.3%
233	La Sénia	1,900	+0.8%
233	Seva	1,900	+0.5%
235	Olèrdola	1,885	+2.2%
236	Balenyà	1,875	+4.2%
237	Castellbell i el Vilar	1,870	+3%
238	El Pont de Vilomara i Rocafort	1,855	+0.3%
239	El Morell	1,845	+3.9%
239	La Torre de Claramunt	1,845	+3.9%
241	La Bisbal del Penedès	1,825	+6.4%
242	Sant Julià de Ramis	1,805	+0.3%
243	Puig-reig	1,800	+2%
244	Sant Cebrià de Vallalta	1,790	+5%
244	Sant Hipòlit de Voltregà	1,790	+2.9%
246	Breda	1,770	-0.8%
247	Cardona	1,740	+2.4%
248	Sant Julià de Vilatorta	1,720	+3%
249	Òdena	1,710	+2.7%
250	Alcoletge	1,705	+2.1%

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 757,245 in December 2025, according to the Institut d'Estadística de Catalunya.

Which municipality has the lowest social Security affiliates?

Sant Jaume de Frontanyà, with 10 in December 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.