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Population & demographics
All demographic data for Erba: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Erba.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Erba.
Erba is a medium-sized municipality in the province of Como, Lombardia region. With a population of 16.266 inhabitants and a density of 913 per km², it covers an area of 17.8 km². The average declared income is 27.995 €.
Erba in numbers: the analysis
Erba has grown substantially since 1951: from 10,971 inhabitants then to 16,266 in 2026, an increase of 48.3%.
The ageing index is one of the starkest signals: in Erba there are 253 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 16,752 inhabitants.
The average municipality in the province of Como has about 4,072 residents: Erba has 4 times as many.
Few municipalities in Lombardia are larger: it ranks no. 99 by population out of 1502.
By population, Erba ranks no. 4 among the 147 municipalities of the province of Como.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 16.127 |
| 2020 | 15.974 |
| 2021 | 16.208 |
| 2022 | 16.091 |
| 2023 | 16.172 |
| 2024 | 16.236 |
| 2025 | 16.264 |
| 2026 | 16.266 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 7931 | 48.8% |
| Women | 8335 | 51.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 105 |
| 2022 | 84 |
| 2023 | 101 |
| 2024 | 103 |
| 2025 | 86 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 10.971 |
| 1961 | 12.175 |
| 1971 | 15.636 |
| 1981 | 16.286 |
| 1991 | 16.005 |
| 2001 | 16.374 |
| 2011 | 16.503 |
| 2019 | 16.127 |
| 2020 | 15.974 |
| 2021 | 16.208 |
| 2022 | 16.091 |
| 2023 | 16.172 |
| 2024 | 16.236 |
| 2025 | 16.264 |
| 2026 | 16.266 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 13.824 | 42.5% |
| Married | 14.776 | 45.4% |
| Divorced | 1356 | 4.2% |
| Widowed | 2572 | 7.9% |
School-Age Population (2026)
Total 0-18 years: 2383
| Valore | |
|---|---|
| Nido (0-2) | 279 |
| Infanzia (3-5) | 313 |
| Primaria (6-10) | 624 |
| Medie (11-13) | 426 |
| Superiori (14-18) | 741 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Erba population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/erba-013095" title="Population pyramid of Erba — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/erba-013095" alt="Population pyramid of Erba — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>