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Population & demographics
All demographic data for Ostuni: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Ostuni.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Ostuni.
Ostuni is a medium-sized municipality in the province of Brindisi, Puglia region. With a population of 29.803 inhabitants and a density of 133 per km², it covers an area of 224.2 km². The average declared income is 20.576 €.
Ostuni in numbers: the analysis
The average municipality in the province of Brindisi has about 18,682 residents: Ostuni has 1.6 times as many.
Among the 20 municipalities of the province of Brindisi, Ostuni ranks 4 by population.
The census record tells a story of long decline: in 1951 Ostuni had 31,413 inhabitants; today (2026) it has 29,803 — 5.1% fewer.
The ageing index is one of the starkest signals: in Ostuni there are 285 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 26,838 inhabitants for Ostuni: an expected decline of 9.9% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 30.728 |
| 2020 | 30.633 |
| 2021 | 30.276 |
| 2022 | 30.302 |
| 2023 | 30.171 |
| 2024 | 29.942 |
| 2025 | 29.943 |
| 2026 | 29.803 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 14.376 | 48.2% |
| Women | 15.427 | 51.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 174 |
| 2022 | 154 |
| 2023 | 151 |
| 2024 | 186 |
| 2025 | 155 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 31.413 |
| 1961 | 31.077 |
| 1971 | 30.989 |
| 1981 | 31.367 |
| 1991 | 33.551 |
| 2001 | 32.901 |
| 2011 | 31.860 |
| 2019 | 30.728 |
| 2020 | 30.633 |
| 2021 | 30.276 |
| 2022 | 30.302 |
| 2023 | 30.171 |
| 2024 | 29.942 |
| 2025 | 29.943 |
| 2026 | 29.803 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 25.608 | 42.8% |
| Married | 27.542 | 46.0% |
| Divorced | 1858 | 3.1% |
| Widowed | 4818 | 8.1% |
School-Age Population (2026)
Total 0-18 years: 4032
| Valore | |
|---|---|
| Nido (0-2) | 504 |
| Infanzia (3-5) | 525 |
| Primaria (6-10) | 1015 |
| Medie (11-13) | 671 |
| Superiori (14-18) | 1317 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Ostuni population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/ostuni-074012" title="Population pyramid of Ostuni — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/ostuni-074012" alt="Population pyramid of Ostuni — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>