Siena

Province in Toscana

Province

The population development of Siena.

Name	Status	Population Census 1981-10-25	Population Census 1991-10-20	Population Census 2001-10-21	Population Census 2011-10-09	Population Census 2021-12-31	Population Estimate 2026-01-01
Siena	Province	255,118	250,740	252,288	266,621	261,209	259,502	→
Toscana [Tuscany]	Region	3,581,051	3,529,946	3,497,806	3,672,202	3,663,191	3,659,222

Contents: Communes

The population development of the communes in Siena.

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

Name	Status	Province	Population Census 1981-10-25	Population Census 1991-10-20	Population Census 2001-10-21	Population Census 2011-10-09	Population Census 2021-12-31	Population Estimate 2026-01-01
Abbadia San Salvatore	Commune	Siena	7,813	7,243	6,832	6,557	6,023	6,117	→
Asciano	Commune	Siena	6,019	6,210	6,488	7,228	6,812	6,782	→
Buonconvento	Commune	Siena	3,017	3,103	3,168	3,182	3,004	2,936	→
Casole d'Elsa	Commune	Siena	2,671	2,568	2,931	3,886	3,716	3,669	→
Castellina in Chianti	Commune	Siena	2,681	2,508	2,673	2,863	2,677	2,591	→
Castelnuovo Berardenga	Commune	Siena	5,376	6,316	7,470	8,787	8,970	8,764	→
Castiglione d'Orcia	Commune	Siena	3,158	2,840	2,508	2,453	2,148	2,046	→
Cetona	Commune	Siena	3,156	3,028	2,854	2,845	2,516	2,441	→
Chianciano Terme	Commune	Siena	7,285	7,445	6,955	7,058	6,848	7,143	→
Chiusdino	Commune	Siena	2,252	1,922	1,918	1,877	1,767	1,704	→
Chiusi	Commune	Siena	9,244	9,103	8,612	8,836	8,051	8,052	→
Colle di Val d'Elsa	Commune	Siena	16,050	17,040	19,521	21,256	21,677	21,665	→
Gaiole in Chianti	Commune	Siena	2,577	2,309	2,386	2,758	2,584	2,460	→
Montalcino	Commune	Siena	6,613	6,026	6,021	6,043	5,676	5,530	→
Montepulciano	Commune	Siena	14,170	13,856	13,883	14,237	13,386	13,017	→
Monteriggioni	Commune	Siena	6,690	7,134	7,891	9,264	9,993	10,063	→
Monteroni d'Arbia	Commune	Siena	5,625	6,493	7,170	8,744	8,984	9,019	→
Monticiano	Commune	Siena	1,586	1,444	1,408	1,505	1,534	1,636	→
Murlo	Commune	Siena	1,784	1,793	1,932	2,388	2,408	2,475	→
Piancastagnaio	Commune	Siena	4,410	4,401	4,196	4,176	3,968	3,839	→
Pienza	Commune	Siena	2,473	2,330	2,233	2,141	2,007	1,900	→
Poggibonsi	Commune	Siena	26,368	26,364	27,420	28,952	28,576	28,048	→
Radda in Chianti	Commune	Siena	1,585	1,633	1,669	1,693	1,470	1,431	→
Radicofani	Commune	Siena	1,423	1,300	1,219	1,151	1,065	1,024	→
Radicondoli	Commune	Siena	1,102	1,032	978	931	925	969	→
Rapolano Terme	Commune	Siena	5,095	4,975	4,776	5,129	5,030	5,103	→
San Casciano dei Bagni	Commune	Siena	2,146	1,977	1,745	1,637	1,516	1,417	→
San Gimignano	Commune	Siena	7,371	6,956	7,114	7,677	7,487	7,463	→
San Quirico d'Orcia	Commune	Siena	2,233	2,389	2,463	2,680	2,610	2,530	→
Sarteano	Commune	Siena	4,282	4,378	4,535	4,741	4,476	4,494	→
Siena	Commune	Siena	61,989	56,956	52,625	52,839	53,062	53,180	→
Sinalunga	Commune	Siena	11,573	11,583	11,790	12,476	12,128	12,093	→
Sovicille	Commune	Siena	6,767	7,640	8,366	9,935	9,906	9,844	→
Torrita di Siena	Commune	Siena	7,116	7,071	7,121	7,357	7,014	6,942	→
Trequanda	Commune	Siena	1,418	1,374	1,417	1,339	1,195	1,115	→

Source: Istituto Nazionale di Statistica Italia.

Explanation: The 2026 figures are preliminary.

Further information about the population structure:

Gender (E 2026)
Males	126,807
Females	132,695

Age Groups (E 2026)
0-17 years	35,708
18-64 years	152,659
65+ years	71,135

Age Distribution (E 2026)
90+ years	5,403
80-89 years	18,805
70-79 years	29,853
60-69 years	36,981
50-59 years	41,456
40-49 years	32,775
30-39 years	27,522
20-29 years	26,003
10-19 years	23,524
0-9 years	17,180

Citizenship (E 2026)
Italy	227,942
Foreign Citizenship	31,560