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Trieste is a large municipality in the province of Trieste, Friuli-Venezia Giulia region. With a population of 198.622 inhabitants and a density of 2350 per km², it covers an area of 84.5 km². The average declared income is 27.353 €.

Trieste in numbers: the analysis

Trieste is among Italy's major centres: the country's no. 17 municipality by population out of 7896.

At the regional level it sits near the very top: no. 1 most populous of the 215 municipalities in Friuli-Venezia Giulia.

Trieste is the most populous municipality in the province of Trieste, out of 6 in total.

The census record tells a story of long decline: in 1951 Trieste had 272,522 inhabitants; today (2026) it has 198,622 — 27.1% fewer.

The ageing index is one of the starkest signals: in Trieste there are 278 residents over 65 for every 100 under 14, well above the national average.

Demographic projections to 2050 estimate about 186,351 inhabitants for Trieste: an expected decline of 6.2% from today.

The average municipality in the province of Trieste has about 37,973 residents: Trieste has 5.2 times as many.

Population Trend

Grafico a linee
AnnoPopolazione
2019202.351
2020201.613
2021200.609
2022199.015
2023199.032
2024198.843
2025198.388
2026198.622

Male/Female Ratio

Grafico a ciambella
Valore%
Men95.98548.3%
Women102.63751.7%

Demographic Statistics

Men95.985
Women102.637
Year2026

Demographic Indices

+0.12%
Annual change
change from the previous year
278
Ageing index
65+ / 0-14 × 100
63.7
Dependency ratio
(0-14 + 65+) / 15-64 × 100
188.2
Workforce replacement
60-64 / 15-19 × 100
138.7
Workforce structure
40-64 / 15-39 × 100
17.6
Child dependency
0-4 / women 15-49 × 100
48.69
Average age
weighted average age

Births (recent years)

Grafico a barre
Valore
20211223
20221269
20231164
20241245
20251199

Historical Population (1951-present)

Grafico a linee
AnnoPopulation
1951272.522
1961272.723
1971271.879
1981252.369
1991231.100
2001211.184
2011202.123
2019202.351
2020201.613
2021200.609
2022199.015
2023199.032
2024198.843
2025198.388
2026198.622

Marital Status (2025)

Grafico a ciambella
Valore%
Single175.06444.2%
Married157.86239.8%
Divorced27.7487.0%
Widowed35.6109.0%

School-Age Population (2026)

Total 0-18 years: 27.195

Grafico a barre
Valore
Nido (0-2)3659
Infanzia (3-5)3822
Primaria (6-10)6779
Medie (11-13)4573
Superiori (14-18)8362

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
24.586
Foreign-resident share: 12.39%
Main citizenships
Serbia3547
Romania3044
Kosovo2031
Ucraina1339
Pakistan1336

Embed this chart

Use the Trieste population pyramid on your site or article — the DatiItalia source link is already included.

Population pyramid of Trieste — DatiItalia
<a href="https://datitalia.eu/comune/trieste-032006" title="Population pyramid of Trieste — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/trieste-032006" alt="Population pyramid of Trieste — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>
Source: ISTAT, MEF, ISPRA, EEA · Year: 2025 · updated Jun 28, 2026

Altri dati e servizi a Trieste