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Population & demographics
All demographic data for Baiano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Baiano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Baiano.
Baiano is a small municipality in the province of Avellino, Campania region. With a population of 4371 inhabitants and a density of 366 per km², it covers an area of 11.9 km². The average declared income is 20.445 €.
Baiano in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Baiano is 212 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 3,761 inhabitants for Baiano: an expected decline of 14% from today.
Among the 118 municipalities of the province of Avellino, Baiano ranks 19 by population.
Baiano has grown substantially since 1951: from 4,038 inhabitants then to 4,371 in 2026, an increase of 8.2%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4567 |
| 2020 | 4549 |
| 2021 | 4517 |
| 2022 | 4515 |
| 2023 | 4451 |
| 2024 | 4386 |
| 2025 | 4374 |
| 2026 | 4371 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2097 | 48.0% |
| Women | 2274 | 52.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 27 |
| 2022 | 27 |
| 2023 | 32 |
| 2024 | 28 |
| 2025 | 24 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4038 |
| 1961 | 4344 |
| 1971 | 4713 |
| 1981 | 5173 |
| 1991 | 4811 |
| 2001 | 4633 |
| 2011 | 4730 |
| 2019 | 4567 |
| 2020 | 4549 |
| 2021 | 4517 |
| 2022 | 4515 |
| 2023 | 4451 |
| 2024 | 4386 |
| 2025 | 4374 |
| 2026 | 4371 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3582 | 40.9% |
| Married | 4312 | 49.3% |
| Divorced | 208 | 2.4% |
| Widowed | 646 | 7.4% |
School-Age Population (2026)
Total 0-18 years: 664
| Valore | |
|---|---|
| Nido (0-2) | 87 |
| Infanzia (3-5) | 84 |
| Primaria (6-10) | 176 |
| Medie (11-13) | 127 |
| Superiori (14-18) | 190 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Baiano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/baiano-064010" title="Population pyramid of Baiano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/baiano-064010" alt="Population pyramid of Baiano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>