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Terni is a large municipality in the province of Terni, Umbria region. With a population of 106.272 inhabitants and a density of 498 per km², it covers an area of 213.2 km². The average declared income is 23.304 €.

Terni in numbers: the analysis

Terni is the most populous municipality in the province of Terni, out of 33 in total.

Terni has grown substantially since 1951: from 84,403 inhabitants then to 106,272 in 2026, an increase of 25.9%.

The ageing index is one of the starkest signals: in Terni there are 276 residents over 65 for every 100 under 14, well above the national average.

Demographic projections to 2050 estimate about 92,811 inhabitants for Terni: an expected decline of 12.7% from today.

The average municipality in the province of Terni has about 6,504 residents: Terni has 16.3 times as many.

Terni is among Italy's major centres: the country's no. 42 municipality by population out of 7896.

At the regional level it sits near the very top: no. 2 most populous of the 92 municipalities in Umbria.

Population Trend

Grafico a linee
AnnoPopolazione
2019110.554
2020110.003
2021107.982
2022107.165
2023106.793
2024106.436
2025106.310
2026106.272

Male/Female Ratio

Grafico a ciambella
Valore%
Men51.08748.1%
Women55.18551.9%

Demographic Statistics

Men51.087
Women55.185
Year2026

Demographic Indices

-0.04%
Annual change
change from the previous year
275.7
Ageing index
65+ / 0-14 × 100
62.3
Dependency ratio
(0-14 + 65+) / 15-64 × 100
167.2
Workforce replacement
60-64 / 15-19 × 100
149.4
Workforce structure
40-64 / 15-39 × 100
16
Child dependency
0-4 / women 15-49 × 100
48.61
Average age
weighted average age

Births (recent years)

Grafico a barre
Valore
2021635
2022566
2023584
2024590
2025558

Historical Population (1951-present)

Grafico a linee
AnnoPopulation
195184.403
196195.072
1971106.927
1981111.564
1991108.248
2001105.018
2011109.193
2019110.554
2020110.003
2021107.982
2022107.165
2023106.793
2024106.436
2025106.310
2026106.272

Marital Status (2025)

Grafico a ciambella
Valore%
Single87.31841.1%
Married95.28644.8%
Divorced11.3465.3%
Widowed18.5408.7%

School-Age Population (2026)

Total 0-18 years: 14.810

Grafico a barre
Valore
Nido (0-2)1756
Infanzia (3-5)1960
Primaria (6-10)3625
Medie (11-13)2649
Superiori (14-18)4820

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
13.323
Foreign-resident share: 12.53%
Main citizenships
Romania3692
Albania1259
Ucraina1140
Nigeria685
Filippine673

Embed this chart

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

Population pyramid of Terni — DatiItalia
<a href="https://datitalia.eu/comune/terni-055032" title="Population pyramid of Terni — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/terni-055032" alt="Population pyramid of Terni — 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 Terni