Surname of the person: SIERRA. By areas

Surname of the person: SIERRA. 2022 By areas of the general territorial Plan of Catalonia
		As first surname		As second surname
	Position	frequency	‰	frequency	‰
Metropolità	121	3,950	0.80	4,062	0.82
Comarques Gironines	194	415	0.53	465	0.60
Camp de Tarragona	228	301	0.56	289	0.54
Terres de l'Ebre	545	36	0.20	59	0.32
Ponent	425	114	0.31	146	0.40
Comarques Centrals	329	182	0.44	166	0.40
Alt Pirineu i Aran	470	24	0.32	26	0.35
Penedès	193	319	0.64	316	0.63
Total	141	5,341	0.69	5,529	0.71
Source: Idescat, based on the Continuous Register Statistic of INE

Disaggregation criteria