Switzerland: Agglomerations

Contents: Agglomerations

The population of the Swiss agglomerations according to census results and latest estimates.

The Details icon links to further information about a selected division including its population structure (gender, age groups, age distribution, citizenship, country of birth).

Name	Status	Cantons	Population Census 1980-12-02	Population Census 1990-12-04	Population Census 2000-12-05	Population Estimate 2010-12-31	Population Estimate 2020-12-31	Population Estimate 2025-12-31
Aarau	Agglomeration	Aargau / Solothurn	79,550	85,723	88,557	97,084	109,960	117,555	→
Altdorf (UR)	Agglomeration	Uri	28,384	29,295	30,055	30,783	32,069	33,646	→
Altstätten (Rheintal)	Agglomeration	St. Gallen	40,193	44,251	48,992	53,824	59,527	63,798	→
Amriswil - Romanshorn	Agglomeration	Thurgau	18,065	20,639	21,759	23,332	27,019	28,836	→
Arbon - Rorschach	Agglomeration	Thurgau / St. Gallen	46,975	49,655	51,312	54,821	59,447	63,475	→
Baden - Brugg	Agglomeration	Aargau	86,061	90,499	92,766	100,282	109,655	116,190	→
Basel	Agglomeration	Basel-Stadt / Basel-Landschaft / Aargau / Solothurn	482,289	498,617	504,796	523,948	557,915	580,603	→
Bellinzona	Agglomeration	Ticino / Graubünden	40,658	43,547	47,148	52,699	57,629	60,612	→
Bern	Agglomeration	Bern / Fribourg	375,481	391,723	392,914	398,361	430,792	443,509	→
Biel/Bienne	Agglomeration	Bern	95,176	95,901	93,137	98,722	107,295	112,489	→
Brig - Visp	Agglomeration	Valais	36,221	38,935	41,682	44,629	48,375	51,991	→
Buchs (SG)	Agglomeration	St. Gallen	18,995	21,702	23,816	25,756	28,988	30,961	→
Bulle	Agglomeration	Fribourg	15,180	18,413	21,790	27,778	35,189	38,796	→
Burgdorf	Agglomeration	Bern	19,918	19,951	18,997	19,891	21,152	22,149	→
Chiasso - Mendrisio	Agglomeration	Ticino	42,012	44,139	46,178	49,154	50,420	51,103	→
Chur	Agglomeration	Graubünden	47,565	50,735	52,801	55,834	60,679	63,603	→
Delémont	Agglomeration	Jura	24,398	25,295	26,103	27,401	29,806	30,767	→
Frauenfeld	Agglomeration	Thurgau	18,883	20,577	21,954	23,298	25,974	27,193	→
Fribourg	Agglomeration	Fribourg	61,136	68,390	73,115	80,180	89,708	95,265	→
Genève [Geneva]	Agglomeration	Genève / Vaud	389,435	433,066	479,313	535,976	597,160	632,065	→
Glarus	Agglomeration	Glarus	26,169	27,450	27,571	28,788	31,371	32,815	→
Grenchen	Agglomeration	Solothurn / Bern	24,968	24,934	25,118	25,370	27,846	29,687	→
Interlaken	Agglomeration	Bern	18,927	20,975	22,228	23,515	24,624	25,501	→
Kreuzlingen	Agglomeration	Thurgau	17,098	18,395	18,802	21,653	24,787	26,312	→
La Chaux-de-Fonds - Le Locle	Agglomeration	Neuchâtel / Bern	53,510	52,500	51,991	52,011	51,352	52,316	→
Lachen	Agglomeration	Schwyz	15,760	19,265	22,480	26,993	30,881	32,475	→
Lausanne	Agglomeration	Vaud / Fribourg	300,705	334,188	349,201	379,946	435,105	462,325	→
Lenzburg	Agglomeration	Aargau	16,764	17,550	17,844	20,020	25,902	27,364	→
Locarno	Agglomeration	Ticino	49,054	50,950	55,699	59,879	62,075	62,734	→
Lugano	Agglomeration	Ticino	104,521	115,035	128,457	141,236	150,105	154,802	→
Luzern [Lucerne]	Agglomeration	Luzern / Nidwalden	179,495	193,878	204,712	218,819	238,536	253,460	→
Martigny	Agglomeration	Valais	13,882	16,607	17,906	20,572	23,520	25,876	→
Mels - Sargans	Agglomeration	St. Gallen	13,745	15,202	16,493	18,016	19,815	21,415	→
Monthey	Agglomeration	Valais	16,763	21,323	23,195	27,914	32,224	34,597	→
Neuchâtel	Agglomeration	Neuchâtel	92,131	97,988	102,020	106,409	111,200	114,401	→
Olten - Zofingen	Agglomeration	Solothurn / Aargau / Luzern	80,465	83,700	85,742	92,690	103,482	109,546	→
Rapperswil-Jona - Rüti	Agglomeration	St. Gallen / Zürich	34,240	38,804	41,254	44,850	47,622	50,004	→
Reinach (AG)	Agglomeration	Aargau	13,504	15,073	16,341	17,410	19,843	22,470	→
Schaffhausen	Agglomeration	Schaffhausen / Zürich	63,115	64,683	65,683	69,467	75,681	81,280	→
Sierre	Agglomeration	Valais	16,947	18,774	19,078	21,246	22,966	24,413	→
Sion	Agglomeration	Valais	55,051	62,940	68,332	79,645	92,122	99,770	→
Solothurn	Agglomeration	Solothurn	67,989	71,657	73,943	77,026	83,039	86,359	→
Stein (AG)	Agglomeration	Aargau	4,284	4,541	5,611	6,719	7,802	8,397	→
St. Gallen	Agglomeration	St. Gallen / Appenzell Ausserrhoden	154,717	162,642	164,991	169,291	177,081	183,845	→
Thun	Agglomeration	Bern	64,390	68,592	72,228	77,064	79,578	81,365	→
Vevey - Montreux	Agglomeration	Vaud	59,606	66,403	67,666	74,788	81,091	85,062	→
Wil (SG)	Agglomeration	St. Gallen / Thurgau	50,105	56,552	60,365	65,224	71,436	75,684	→
Winterthur	Agglomeration	Zürich	103,491	106,954	113,397	127,408	143,002	150,706	→
Wohlen (AG)	Agglomeration	Aargau	15,914	17,363	18,632	20,407	24,549	26,435	→
Yverdon-les-Bains	Agglomeration	Vaud	26,972	31,024	33,856	38,194	42,377	43,366	→
Zug	Agglomeration	Zug / Zürich / Aargau / Luzern	81,295	91,996	107,760	122,488	139,728	146,636	→
Zürich [Zurich]	Agglomeration	Zürich / Aargau / Schwyz / Schaffhausen	1,019,556	1,078,411	1,143,262	1,259,921	1,426,527	1,498,745	→

Source: Swiss Federal Statistical Office.

Explanation: Boundaries of agglomerations (core and belt) according to the 2020 definition without parts outside of Switzerland. The population figures for 2025 are preliminary.