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Population & demographics
All demographic data for Signa: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Signa.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Signa.
Signa is a medium-sized municipality in the province of Firenze, Toscana region. With a population of 18.990 inhabitants and a density of 1011 per km², it covers an area of 18.8 km². The average declared income is 23.364 €.
Signa in numbers: the analysis
Signa has grown substantially since 1951: from 9,631 inhabitants then to 18,990 in 2026, an increase of 97.2%.
The generational balance is in line with the norm: the ageing index of Signa is 185 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Signa about 20,972 inhabitants, up 10.4% from today.
Among the 41 municipalities of the province of Firenze, Signa ranks 11 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 18.448 |
| 2020 | 18.569 |
| 2021 | 19.211 |
| 2022 | 18.964 |
| 2023 | 18.919 |
| 2024 | 19.013 |
| 2025 | 19.063 |
| 2026 | 18.990 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 9345 | 49.2% |
| Women | 9645 | 50.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 123 |
| 2022 | 108 |
| 2023 | 115 |
| 2024 | 121 |
| 2025 | 114 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 9631 |
| 1961 | 10.583 |
| 1971 | 13.364 |
| 1981 | 14.017 |
| 1991 | 14.375 |
| 2001 | 15.433 |
| 2011 | 17.451 |
| 2019 | 18.448 |
| 2020 | 18.569 |
| 2021 | 19.211 |
| 2022 | 18.964 |
| 2023 | 18.919 |
| 2024 | 19.013 |
| 2025 | 19.063 |
| 2026 | 18.990 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 17.902 | 47.0% |
| Married | 16.178 | 42.4% |
| Divorced | 1526 | 4.0% |
| Widowed | 2520 | 6.6% |
School-Age Population (2026)
Total 0-18 years: 3171
| Valore | |
|---|---|
| Nido (0-2) | 356 |
| Infanzia (3-5) | 403 |
| Primaria (6-10) | 770 |
| Medie (11-13) | 590 |
| Superiori (14-18) | 1052 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Signa population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/signa-048044" title="Population pyramid of Signa — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/signa-048044" alt="Population pyramid of Signa — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>