Riesi: 10.158 inhabitants (2026)
ISTAT Code: 085015
37.2834°N, 14.0822°E
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Population & demographics
All demographic data for Riesi: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Riesi.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Riesi.
Riesi is a medium-sized municipality in the province of Caltanissetta, Sicilia region. With a population of 10.158 inhabitants and a density of 154 per km², it covers an area of 65.9 km². The average declared income is 14.811 €.
Riesi in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Riesi is 175 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 7,321 inhabitants for Riesi: an expected decline of 27.9% from today.
Among the 22 municipalities of the province of Caltanissetta, Riesi ranks 6 by population.
The census record tells a story of long decline: in 1951 Riesi had 20,437 inhabitants; today (2026) it has 10,158 — 50.3% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 11.176 |
| 2020 | 10.985 |
| 2021 | 10.697 |
| 2022 | 10.631 |
| 2023 | 10.494 |
| 2024 | 10.409 |
| 2025 | 10.260 |
| 2026 | 10.158 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 4863 | 47.9% |
| Women | 5295 | 52.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 89 |
| 2022 | 85 |
| 2023 | 84 |
| 2024 | 74 |
| 2025 | 77 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 20.437 |
| 1961 | 18.167 |
| 1971 | 15.989 |
| 1981 | 15.085 |
| 1991 | 12.506 |
| 2001 | 11.746 |
| 2011 | 11.814 |
| 2019 | 11.176 |
| 2020 | 10.985 |
| 2021 | 10.697 |
| 2022 | 10.631 |
| 2023 | 10.494 |
| 2024 | 10.409 |
| 2025 | 10.260 |
| 2026 | 10.158 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 8438 | 41.1% |
| Married | 10.014 | 48.8% |
| Divorced | 350 | 1.7% |
| Widowed | 1718 | 8.4% |
School-Age Population (2026)
Total 0-18 years: 1779
| Valore | |
|---|---|
| Nido (0-2) | 224 |
| Infanzia (3-5) | 262 |
| Primaria (6-10) | 464 |
| Medie (11-13) | 309 |
| Superiori (14-18) | 520 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Riesi population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/riesi-085015" title="Population pyramid of Riesi — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/riesi-085015" alt="Population pyramid of Riesi — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>