Municipalities of Spain by social Security affiliates

Name: Municipalities of Spain by social Security affiliates, April 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 April 2026, at 761,585. Sant Jaume de Frontanyà had the lowest, at 10. The median was 430. Source: the Institut d'Estadística de Catalunya.

Highest761,585Barcelona

Lowest10Sant Jaume de Frontanyà

Median430947 municipalities

Top 40 municipalities, April 2026

CSV Chart (SVG)

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

Full ranking

Rank	Municipalities	April 2026 persons	Change on April 2025
1	Barcelona	761,585	+0.8%
2	L'Hospitalet de Llobregat	125,995	+3.1%
3	Terrassa	105,535	+2.6%
4	Sabadell	100,315	+3%
5	Badalona	99,180	+1.7%
6	Lleida	61,305	+2.5%
7	Tarragona	58,180	+1.9%
8	Mataró	57,400	+1.8%
9	Santa Coloma de Gramenet	51,495	+1.6%
10	Girona	48,695	+0.9%
11	Reus	46,870	+2%
12	Sant Cugat del Vallès	44,615	+0.6%
13	Cornellà de Llobregat	41,760	+2.5%
14	Sant Boi de Llobregat	38,280	+1.9%
15	Rubí	37,340	+2%
16	Manresa	33,205	+3.2%
17	Viladecans	32,575	+3.4%
18	Vilanova i la Geltrú	31,045	+3.6%
19	Castelldefels	30,660	+0.3%
20	El Prat de Llobregat	29,440	+1.2%
21	Granollers	29,435	+2.6%
22	Cerdanyola del Vallès	26,060	+1.2%
23	Mollet del Vallès	24,075	+2.5%
24	Vic	23,420	+2.4%
25	Sant Feliu de Llobregat	21,480	+1.6%
26	Figueres	21,355	+2.3%
27	Gavà	21,350	+1.3%
28	Esplugues de Llobregat	20,555	+2.3%
29	Vilafranca del Penedès	18,775	+1.8%
30	Ripollet	18,270	+1.4%
31	Olot	18,165	+1.8%
32	Blanes	18,005	+1.3%
33	Igualada	17,715	+1.3%
34	Montcada i Reixac	17,190	+2.5%
35	Sant Joan Despí	17,155	+1.4%
36	Lloret de Mar	17,080	+2%
37	El Vendrell	16,950	+4.3%
38	Sant Adrià de Besòs	16,205	+2.5%
39	Cambrils	16,000	+2.1%
40	Barberà del Vallès	15,560	+0.7%
41	Salou	14,385	+2.3%
42	Sant Pere de Ribes	14,325	+1.8%
43	Salt	14,215	+4.4%
44	Tortosa	13,855	+2.4%
45	Sitges	13,240	+0.7%
46	Molins de Rei	13,080	+1.6%
47	Calafell	13,015	+3.7%
48	Martorell	12,895	+3.2%
48	Sant Vicenç dels Horts	12,895	+1.5%
50	Premià de Mar	12,820	+0.2%
51	Sant Andreu de la Barca	12,575	+2.1%
52	Pineda de Mar	12,355	+2.6%
53	Castellar del Vallès	12,240	+1.7%
54	Santa Perpètua de Mogoda	12,160	+2.4%
55	Olesa de Montserrat	11,480	+2%
56	El Masnou	11,370	+1.5%
57	Vila-seca	10,835	+0.7%
58	Palafrugell	10,560	+3%
59	Esparreguera	10,540	+2.7%
60	Valls	10,525	+1%
61	Les Franqueses del Vallès	10,035	+3.2%
62	Banyoles	9,920	+2.4%
63	Sant Feliu de Guíxols	9,665	+1.1%
64	Sant Quirze del Vallès	9,455	+1.1%
65	Sant Just Desvern	9,445	+1.2%
66	Vilassar de Mar	9,405	0%
67	Amposta	9,135	+1.8%
68	Parets del Vallès	9,095	+2.4%
69	Cardedeu	9,030	+2.2%
70	Caldes de Montbui	8,885	+1.2%
71	Manlleu	8,810	+1.7%
72	Calella	8,615	+2.1%
73	Roses	8,595	+2%
74	Malgrat de Mar	8,570	+1.9%
75	Tàrrega	8,540	+3.6%
76	Sant Celoni	8,490	+1.8%
77	Palamós	8,385	+1.9%
78	La Garriga	8,285	+1.5%
79	Lliçà d'Amunt	8,265	+2.6%
80	Tordera	8,250	+3.7%
81	Piera	8,095	+4.6%
82	Montornès del Vallès	7,835	+2%
83	Cubelles	7,825	+2.8%
84	Vallirana	7,780	+1.6%
85	Corbera de Llobregat	7,770	+2.1%
86	Palau-solità i Plegamans	7,520	+1.1%
87	Torredembarra	7,480	+3.3%
88	Arenys de Mar	7,125	+0.6%
89	Balaguer	7,065	+2%
90	Canovelles	7,050	+2.1%
91	Mollerussa	7,040	+0.6%
92	Berga	6,985	+2.2%
93	Torelló	6,960	+1.3%
94	Santa Coloma de Farners	6,585	+1.9%
95	Canet de Mar	6,550	+2.7%
96	Cunit	6,480	+4.1%
97	Castellbisbal	6,415	+1.8%
98	Abrera	6,290	+0.9%
99	Montgat	6,155	+0.7%
100	La Ràpita	6,145	+2.3%
101	Argentona	5,990	+1.9%
102	Sant Sadurní d'Anoia	5,950	-0.4%
103	Mont-roig del Camp	5,930	+4.3%
104	La Llagosta	5,840	+0.5%
105	Pallejà	5,800	+2.4%
106	Torroella de Montgrí	5,670	+1.9%
107	La Roca del Vallès	5,640	+2.9%
108	Vilanova del Camí	5,615	+2.3%
109	Llinars del Vallès	5,370	+2.9%
110	Cassà de la Selva	5,320	+1.7%
111	Calonge i Sant Antoni	5,285	+2.7%
112	Castell d'Aro, Platja d'Aro i s'Agaró	5,250	+2.8%
113	Sant Andreu de Llavaneres	5,245	+0.2%
114	Castelló d'Empúries	5,160	+2.5%
115	Badia del Vallès	5,150	+2.7%
116	La Bisbal d'Empordà	5,140	+1.3%
117	Bigues i Riells del Fai	5,120	+2.7%
118	Alcarràs	5,110	+2.7%
119	Sant Joan de Vilatorrada	5,050	+1%
120	Deltebre	4,910	+2.5%
121	Masquefa	4,905	+2.8%
122	Premià de Dalt	4,800	+0.6%
123	Palafolls	4,795	+0.7%
124	Matadepera	4,780	+2.7%
125	Sentmenat	4,715	+2.5%
126	Cervelló	4,695	+3%
127	L'Ametlla del Vallès	4,685	+1.6%
128	Tiana	4,655	+2.4%
129	Ripoll	4,635	+1%
130	Santa Maria de Palautordera	4,595	+1.2%
131	La Seu d'Urgell	4,550	+1.8%
131	Puigcerdà	4,550	+2.4%
133	Sant Fruitós de Bages	4,495	+0.6%
134	L'Escala	4,475	+3.7%
135	Arenys de Munt	4,420	+1.3%
136	Cervera	4,380	+3.7%
136	Sant Esteve Sesrovires	4,380	+3.4%
138	Llagostera	4,345	+2%
139	Sant Fost de Campsentelles	4,340	+2.4%
140	Solsona	4,330	+1.2%
141	Alella	4,305	-0.7%
142	Polinyà	4,295	+1.2%
143	Vilassar de Dalt	4,235	+1%
144	Tona	4,210	+1.3%
145	Santa Coloma de Cervelló	4,200	+2.4%
146	Santa Margarida de Montbui	4,190	+2.1%
147	Sant Vicenç de Castellet	4,185	+0.4%
148	Montmeló	4,155	+1.8%
149	Caldes de Malavella	4,075	+2.4%
150	Guissona	4,010	+3%
151	Vacarisses	3,990	+3.8%
151	Vidreres	3,990	+1.9%
153	Gelida	3,860	+2.3%
154	Santa Eulàlia de Ronçana	3,825	+1.7%
155	Centelles	3,760	+0.8%
156	Begues	3,735	+2.2%
156	Viladecavalls	3,735	+0.7%
158	Santpedor	3,665	+1.4%
159	Maçanet de la Selva	3,650	+5.2%
160	Roquetes	3,620	+2.5%
161	Alcanar	3,610	-0.4%
162	Cabrils	3,605	+1.4%
163	Roda de Berà	3,425	+3%
163	Santa Margarida i els Monjos	3,425	+0.7%
165	Montblanc	3,380	-1%
166	Sils	3,355	+1.8%
167	Sant Feliu de Codines	3,350	+1.4%
168	Taradell	3,300	+1.4%
169	Lliçà de Vall	3,290	+1.1%
170	Alpicat	3,280	+3.6%
170	Roda de Ter	3,280	+3.5%
172	Torrelles de Llobregat	3,170	+1.9%
173	Sant Antoni de Vilamajor	3,165	+1%
174	Dosrius	3,160	+2.6%
175	Moià	3,145	0%
176	Teià	3,080	+1.1%
177	Riudoms	3,075	+1.2%
178	Sant Vicenç de Montalt	3,065	+1.5%
179	Arbúcies	3,015	+2.9%
179	Vandellòs i l'Hospitalet de l'Infant	3,015	+2.2%
181	Tossa de Mar	2,950	+2.6%
182	Vilanova del Vallès	2,930	+3%
183	Celrà	2,865	+1.1%
184	Sallent	2,855	-0.2%
185	Artés	2,840	+1.6%
186	Constantí	2,835	+2.3%
187	La Canonja	2,820	-0.5%
188	Navarcles	2,775	0%
189	Les Borges Blanques	2,760	+3%
190	Almacelles	2,750	+1.7%
191	Sarrià de Ter	2,730	+2.6%
192	Navàs	2,725	+0.9%
193	Santa Cristina d'Aro	2,720	+1.1%
194	Canyelles	2,715	+6.3%
195	L'Ametlla de Mar	2,695	+0.6%
196	La Selva del Camp	2,650	+0.8%
197	Sant Hilari Sacalm	2,610	0%
198	El Catllar	2,595	+3%
199	Anglès	2,585	+1.8%
200	Vilafant	2,555	+0.6%
201	Agramunt	2,550	+0.6%
202	Bescanó	2,540	+2.2%
203	Altafulla	2,535	+1.6%
204	Sant Pere de Vilamajor	2,520	+0.6%
204	Vielha e Mijaran	2,520	+0.2%
206	Els Pallaresos	2,490	+2.3%
207	Súria	2,485	+1.4%
208	Torrefarrera	2,470	+0.4%
209	Collbató	2,450	+2.7%
210	Alcover	2,440	+1.9%
211	Cabrera de Mar	2,430	+1.9%
212	Sant Pol de Mar	2,415	+2.1%
212	Tremp	2,415	-1.6%
214	Porqueres	2,370	+0.2%
215	L'Arboç	2,360	+1.7%
216	Capellades	2,335	-0.4%
217	Móra d'Ebre	2,295	+4.3%
218	Bellpuig	2,285	+0.2%
219	Martorelles	2,280	+5.3%
220	Riells i Viabrea	2,250	+5.1%
221	Ulldecona	2,235	+1.4%
222	El Papiol	2,185	+2.6%
223	Llançà	2,175	+0.5%
224	Vilablareix	2,160	+5.4%
225	Sant Climent de Llobregat	2,115	+2.2%
226	Hostalric	2,075	+1%
227	La Pobla de Mafumet	2,065	+1.2%
228	Sant Gregori	2,050	+3.3%
229	Quart	2,040	+3.8%
230	Olivella	2,005	+4.2%
231	L'Aldea	1,980	+1.3%
232	Gironella	1,975	+2.1%
233	La Sénia	1,940	+2.1%
234	Seva	1,935	+1.8%
235	Olèrdola	1,905	+2.7%
236	El Morell	1,900	+6.1%
237	Castellbell i el Vilar	1,890	+2.4%
238	La Torre de Claramunt	1,880	+3.3%
239	Balenyà	1,875	+1.9%
239	Sant Cebrià de Vallalta	1,875	+7.4%
241	El Pont de Vilomara i Rocafort	1,865	+0.8%
242	La Bisbal del Penedès	1,845	+5.1%
242	Sant Julià de Ramis	1,845	+2.8%
244	Puig-reig	1,825	-0.5%
245	Breda	1,810	+1.1%
246	Sant Hipòlit de Voltregà	1,795	+2%
247	Begur	1,780	-2.7%
248	Santa Susanna	1,770	+0.6%
249	Cardona	1,745	+0.9%
250	L'Espluga de Francolí	1,740	+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 761,585 in April 2026, according to the Institut d'Estadística de Catalunya.

Which municipality has the lowest social Security affiliates?

Sant Jaume de Frontanyà, with 10 in April 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.