Municipalities of Spain by social Security affiliates

Name: Municipalities of Spain by social Security affiliates, July 2026
Creator: Institut d'Estadística de Catalunya
License: Idescat open data terms (attribution required)

Barcelona had the highest social Security affiliates of 947 municipalities in July 2026, at 766,625. Sant Jaume de Frontanyà had the lowest, at 10. The median was 455. Source: the Institut d'Estadística de Catalunya.

Highest766,625Barcelona

Lowest10Sant Jaume de Frontanyà

Median455947 municipalities

Top 40 municipalities, July 2026

CSV Chart (SVG)

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

Full ranking

Rank	Municipalities	July 2026 persons	Change on July 2025
1	Barcelona	766,625	+2.9%
2	L'Hospitalet de Llobregat	129,370	+5.2%
3	Terrassa	105,005	+3.6%
4	Sabadell	100,680	+3.8%
5	Badalona	99,780	+3%
6	Lleida	64,580	+3.8%
7	Tarragona	60,275	+3.6%
8	Mataró	58,140	+3.5%
9	Santa Coloma de Gramenet	52,560	+4.5%
10	Girona	50,070	+1.7%
11	Reus	48,455	+2.9%
12	Sant Cugat del Vallès	43,485	+1.1%
13	Cornellà de Llobregat	41,935	+3.6%
14	Sant Boi de Llobregat	38,330	+2.3%
15	Rubí	37,450	+2.9%
16	Manresa	33,475	+4.3%
17	Viladecans	32,780	+4.2%
18	Vilanova i la Geltrú	31,495	+4.3%
19	Castelldefels	31,000	+1.5%
20	Granollers	29,850	+3.8%
21	El Prat de Llobregat	29,595	+2%
22	Cerdanyola del Vallès	25,795	+2.2%
23	Mollet del Vallès	24,180	+3.6%
24	Vic	23,890	+4.2%
25	Figueres	23,110	+4.8%
26	Gavà	21,305	+1.5%
27	Sant Feliu de Llobregat	21,195	+1.5%
28	Esplugues de Llobregat	20,575	+3%
29	Lloret de Mar	19,550	+3.9%
30	Blanes	19,545	+2.5%
31	Vilafranca del Penedès	18,980	+3.5%
32	Olot	18,550	+3.7%
33	Ripollet	18,340	+3.1%
34	Igualada	17,795	+2.4%
35	El Vendrell	17,635	+4.6%
36	Cambrils	17,320	+4.7%
37	Montcada i Reixac	17,110	+3.5%
38	Sant Joan Despí	17,095	+2.4%
39	Sant Adrià de Besòs	16,260	+3.2%
40	Salou	16,100	+5%
41	Barberà del Vallès	15,425	+1.4%
42	Salt	14,830	+6.3%
43	Sant Pere de Ribes	14,660	+3.8%
44	Tortosa	14,115	+4.7%
45	Calafell	13,650	+5.6%
46	Sitges	13,585	+1.3%
47	Pineda de Mar	13,290	+3.7%
48	Martorell	13,045	+3.8%
49	Molins de Rei	13,040	+1.9%
50	Sant Vicenç dels Horts	12,880	+1.7%
51	Premià de Mar	12,785	+1%
52	Sant Andreu de la Barca	12,505	+2.9%
53	Santa Perpètua de Mogoda	12,225	+3.3%
54	Castellar del Vallès	12,140	+1.8%
55	Palafrugell	11,975	+5.2%
56	Vila-seca	11,550	+1.9%
57	Olesa de Montserrat	11,510	+3.8%
58	El Masnou	11,370	+2%
59	Valls	10,835	+3.2%
60	Sant Feliu de Guíxols	10,600	+3%
61	Esparreguera	10,480	+3%
62	Banyoles	10,140	+2.3%
63	Les Franqueses del Vallès	10,035	+4.2%
64	Roses	9,865	+3.8%
65	Amposta	9,530	+5.4%
66	Calella	9,370	+3.2%
67	Sant Just Desvern	9,335	+1.6%
67	Sant Quirze del Vallès	9,335	+1.8%
69	Vilassar de Mar	9,310	+0.6%
70	Palamós	9,185	+2.7%
71	Malgrat de Mar	9,145	+2.6%
72	Manlleu	9,010	+3.2%
73	Parets del Vallès	9,000	+1.9%
74	Cardedeu	8,925	+2.5%
75	Caldes de Montbui	8,825	+1.3%
76	Tàrrega	8,725	+5.1%
77	Sant Celoni	8,575	+3.8%
78	Tordera	8,525	+3.7%
79	Lliçà d'Amunt	8,235	+3.5%
80	Piera	8,205	+4.9%
81	La Garriga	8,195	+2.2%
82	Cubelles	7,975	+3%
83	Torredembarra	7,875	+4.5%
84	Montornès del Vallès	7,815	+2.8%
85	Corbera de Llobregat	7,780	+2.7%
86	Vallirana	7,760	+2.6%
87	Balaguer	7,525	+3.2%
88	Palau-solità i Plegamans	7,485	+2.3%
89	Mollerussa	7,480	+5.4%
90	Arenys de Mar	7,325	+3.4%
91	Berga	7,150	+4.4%
92	Canovelles	7,145	+2.3%
93	Torelló	7,040	+2.2%
94	Santa Coloma de Farners	6,800	+4.6%
95	Cunit	6,750	+5.4%
96	Canet de Mar	6,620	+1.9%
97	Torroella de Montgrí	6,575	+5.1%
98	Mont-roig del Camp	6,445	+5%
99	Abrera	6,400	+3.3%
100	Castellbisbal	6,360	+2.3%
101	La Ràpita	6,355	+3%
102	Montgat	6,145	+2.2%
103	Sant Sadurní d'Anoia	5,975	+1.7%
104	Argentona	5,945	+2%
105	Alcarràs	5,895	+5.3%
106	La Llagosta	5,860	+1.4%
107	Castell d'Aro, Platja d'Aro i s'Agaró	5,855	+4.8%
108	Castelló d'Empúries	5,845	+4.5%
109	Calonge i Sant Antoni	5,840	+4.4%
110	Pallejà	5,785	+2.8%
111	La Bisbal d'Empordà	5,630	+4.1%
112	La Roca del Vallès	5,590	+2.5%
112	Vilanova del Camí	5,590	+3.3%
114	Cassà de la Selva	5,535	+2.3%
115	Llinars del Vallès	5,385	+3.5%
116	Sant Andreu de Llavaneres	5,290	+1.1%
117	Bigues i Riells del Fai	5,100	+4.1%
118	L'Escala	5,075	+5%
119	Badia del Vallès	5,070	+2%
120	Deltebre	5,040	+2.3%
121	Palafolls	5,035	+0.4%
122	Sant Joan de Vilatorrada	5,010	+0.6%
123	Masquefa	4,950	+3.6%
124	Puigcerdà	4,885	+5.3%
125	Premià de Dalt	4,750	+0.3%
126	Ripoll	4,740	+3.3%
127	La Seu d'Urgell	4,720	+3.6%
128	Sentmenat	4,700	+2.7%
129	Cervelló	4,695	+3.3%
130	Matadepera	4,685	+2.3%
131	L'Ametlla del Vallès	4,660	+2.3%
132	Santa Maria de Palautordera	4,615	+2.8%
132	Tiana	4,615	+2.4%
134	Llagostera	4,525	+3.4%
135	Cervera	4,490	+5.6%
136	Solsona	4,485	+4.2%
137	Sant Fruitós de Bages	4,450	+1%
138	Arenys de Munt	4,445	+1.8%
139	Sant Esteve Sesrovires	4,385	+3.7%
140	Alella	4,295	+1.9%
141	Polinyà	4,270	+2.8%
142	Sant Fost de Campsentelles	4,265	+2.2%
143	Tona	4,255	+2.8%
144	Vilassar de Dalt	4,240	+1.2%
145	Sant Vicenç de Castellet	4,220	+1.3%
146	Santa Margarida de Montbui	4,195	+3.5%
147	Montmeló	4,150	+2.7%
147	Vidreres	4,150	+3.1%
149	Santa Coloma de Cervelló	4,115	+2%
150	Caldes de Malavella	4,100	+1.5%
151	Guissona	4,080	+2.5%
152	Vacarisses	3,970	+4.6%
153	Gelida	3,850	+2.4%
154	Santa Eulàlia de Ronçana	3,790	+2.2%
155	Centelles	3,770	+1.1%
156	Begues	3,710	+3.1%
157	Maçanet de la Selva	3,705	+5.9%
158	Viladecavalls	3,685	+1.1%
159	Roquetes	3,680	+5%
160	Alcanar	3,640	+2.8%
161	Santpedor	3,630	+1.3%
162	Roda de Berà	3,605	+5.3%
163	Cabrils	3,560	+1.7%
164	Santa Margarida i els Monjos	3,465	+3.1%
165	Montblanc	3,460	+1.5%
166	Tossa de Mar	3,455	+6.3%
167	Sils	3,425	+3.3%
168	Sant Feliu de Codines	3,350	+2.8%
169	Alpicat	3,345	+2.9%
170	Taradell	3,325	+2%
171	Roda de Ter	3,320	+4.1%
172	Vandellòs i l'Hospitalet de l'Infant	3,310	+3.4%
173	Lliçà de Vall	3,300	+2.3%
174	Moià	3,185	+1.3%
175	Riudoms	3,180	+2.9%
176	Sant Antoni de Vilamajor	3,155	+0.5%
177	L'Ametlla de Mar	3,145	+2.8%
178	Dosrius	3,130	+2%
179	Torrelles de Llobregat	3,115	+2%
180	Sant Vicenç de Montalt	3,110	+1.8%
181	Vielha e Mijaran	3,100	+5.6%
182	Teià	3,030	+0.5%
183	Arbúcies	3,010	+3.4%
184	Constantí	2,950	+4.8%
185	Santa Cristina d'Aro	2,945	+3.2%
185	Vilanova del Vallès	2,945	+3.5%
187	Celrà	2,910	+0.9%
188	Almacelles	2,905	+3.8%
189	Les Borges Blanques	2,885	+6.1%
190	Sallent	2,845	+0.2%
191	La Canonja	2,840	-1%
192	Artés	2,835	+2.2%
193	Navarcles	2,790	+1.3%
194	Sarrià de Ter	2,775	+3.9%
195	Canyelles	2,745	+5.8%
196	Sant Hilari Sacalm	2,730	+3.2%
197	La Selva del Camp	2,725	+0.9%
198	Navàs	2,715	+0.6%
199	El Catllar	2,665	+4.1%
199	Vilafant	2,665	+0.6%
201	Altafulla	2,645	+1.9%
202	Agramunt	2,605	+1.4%
203	Anglès	2,600	+2.4%
204	Bescanó	2,595	+2%
205	Tremp	2,580	+1.8%
206	Torrefarrera	2,540	+1.8%
207	Sant Pere de Vilamajor	2,520	+1.8%
208	Els Pallaresos	2,495	+1.6%
208	Sant Pol de Mar	2,495	+1.8%
208	Súria	2,495	+4.2%
211	Alcover	2,490	+2.9%
212	Collbató	2,460	+4.7%
213	Llançà	2,440	+1.5%
214	Porqueres	2,435	+1.2%
215	Cabrera de Mar	2,410	+2.8%
216	Bellpuig	2,385	+4.6%
216	Capellades	2,385	+3.2%
218	L'Arboç	2,370	+1.3%
219	Móra d'Ebre	2,350	+5.9%
220	Martorelles	2,290	+6.3%
221	Vilablareix	2,240	+7.2%
222	Ulldecona	2,225	+4%
223	Riells i Viabrea	2,205	+3.3%
224	El Papiol	2,160	+3.3%
225	Hostalric	2,125	+3.9%
226	La Pobla de Mafumet	2,080	+1.7%
227	Sant Climent de Llobregat	2,075	+2.2%
227	Sant Gregori	2,075	+4%
229	L'Aldea	2,065	+4.6%
229	Quart	2,065	+3%
231	Olivella	2,030	+4.9%
232	Begur	1,980	-0.8%
233	Gironella	1,970	+1.8%
233	La Sénia	1,970	+3.4%
235	El Morell	1,925	+4.3%
235	Seva	1,925	+1.9%
237	Olèrdola	1,910	+2.4%
238	La Torre de Claramunt	1,900	+5.8%
239	Castellbell i el Vilar	1,895	+3.6%
239	Sant Cebrià de Vallalta	1,895	+5.9%
241	Santa Susanna	1,885	+0.5%
242	Balenyà	1,880	+2.5%
243	Sant Julià de Ramis	1,875	+3.6%
244	Puig-reig	1,865	+2.2%
245	El Pont de Vilomara i Rocafort	1,850	+1.9%
245	La Bisbal del Penedès	1,850	+6.3%
247	Breda	1,845	+2.2%
248	Alcoletge	1,835	+4.6%
249	Sant Hipòlit de Voltregà	1,820	+2.2%
250	Cardona	1,800	+3.2%

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 766,625 in July 2026, according to the Institut d'Estadística de Catalunya.

Which municipality has the lowest social Security affiliates?

Sant Jaume de Frontanyà, with 10 in July 2026.

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.