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  1. Home
  2. Toscana
  3. Siena
  4. Trequanda

Trequanda is a small municipality in the province of Siena, Toscana region. With a population of 1115 inhabitants and a density of 17 per km², it covers an area of 64.0 km². The average declared income is 23.097 €.

ToscanaSiena

Trequanda

ISTAT Code: 052036

43.1887°N, 11.6678°E

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1.1k
Inhabitants
17
Inhabitants/km²
23.097 €
Average Income
13.79 µg/m³
PM2.5
2,8%
Land Consumption
64.0 km²
Area

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Population Trend

Male/Female Ratio

1115Totale
Men
Women

Demographic Statistics

Men555
Women560
Year2026

Demographic Indices

-1.93%
Annual change
change from the previous year
512.2
Ageing index
65+ / 0-14 × 100
68.4
Dependency ratio
(0-14 + 65+) / 15-64 × 100
164.9
Workforce replacement
60-64 / 15-19 × 100
168
Workforce structure
40-64 / 15-39 × 100
5.7
Child dependency
0-4 / women 15-49 × 100
52.34
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

2274Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 116

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
125
Foreign-resident share: 10.99%
Main citizenships
Romania18
Colombia11
India11
Polonia10
Stati Uniti d'America8

Municipalities in the same province

Abbadia San Salvatore

Siena, Toscana

Asciano

Siena, Toscana

Buonconvento

Siena, Toscana

Casole d'Elsa

Siena, Toscana

Castellina in Chianti

Siena, Toscana

Municipalities in the same region

Abbadia San Salvatore

Siena, Toscana

Abetone Cutigliano

Pistoia, Toscana

Agliana

Pistoia, Toscana

Altopascio

Lucca, Toscana

Anghiari

Arezzo, Toscana

Arcidosso

Grosseto, Toscana

Municipalities with similar population

San Romano in Garfagnana

1.328 · Lucca, Toscana

Chianni

1.321 · Pisa, Toscana

Isola del Giglio

1.294 · Grosseto, Toscana

Castell'Azzara

1.292 · Grosseto, Toscana

Lajatico

1.281 · Pisa, Toscana

Monterotondo Marittimo

1.278 · Grosseto, Toscana

Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025