Trecchina is a small municipality in the province of Potenza, Basilicata region. With a population of 2054 inhabitants and a density of 54 per km², it covers an area of 38.2 km². The average declared income is 17.062 €.
Trecchina in numbers: the analysis
The census record tells a story of long decline: in 1951 Trecchina had 2,688 inhabitants; today (2026) it has 2,054 — 23.6% fewer.
The ageing index is one of the starkest signals: in Trecchina there are 377 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,616 inhabitants for Trecchina: an expected decline of 21.3% from today.
Compared with the provincial average of Potenza (about 3,375 residents per municipality), Trecchina is a markedly smaller centre.
Among the 100 municipalities of the province of Potenza, Trecchina ranks 44 by population.
Trecchina
ISTAT Code: 076092
40.0266°N, 15.7797°E
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Population & demographics
All demographic data for Trecchina: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Trecchina.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Trecchina.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2203 |
| 2020 | 2174 |
| 2021 | 2159 |
| 2022 | 2182 |
| 2023 | 2163 |
| 2024 | 2148 |
| 2025 | 2127 |
| 2026 | 2054 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 968 | 47.1% |
| Women | 1086 | 52.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 12 |
| 2024 | 7 |
| 2025 | 6 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2688 |
| 1961 | 2919 |
| 1971 | 2815 |
| 1981 | 2597 |
| 1991 | 2508 |
| 2001 | 2404 |
| 2011 | 2322 |
| 2019 | 2203 |
| 2020 | 2174 |
| 2021 | 2159 |
| 2022 | 2182 |
| 2023 | 2163 |
| 2024 | 2148 |
| 2025 | 2127 |
| 2026 | 2054 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1768 | 41.6% |
| Married | 1956 | 46.0% |
| Divorced | 110 | 2.6% |
| Widowed | 420 | 9.9% |
School-Age Population (2026)
Total 0-18 years: 234
| Valore | |
|---|---|
| Nido (0-2) | 26 |
| Infanzia (3-5) | 28 |
| Primaria (6-10) | 58 |
| Medie (11-13) | 38 |
| Superiori (14-18) | 84 |
Foreign residents
Foreign presence and top citizenships