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Population & demographics
All demographic data for Colleferro: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Colleferro.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Colleferro.
Colleferro is a medium-sized municipality in the province of Roma, Lazio region. With a population of 20.381 inhabitants and a density of 751 per km², it covers an area of 27.1 km². The average declared income is 23.837 €.
Colleferro in numbers: the analysis
Few municipalities in Lazio are larger: it ranks no. 38 by population out of 378.
Among the 121 municipalities of the province of Roma, Colleferro ranks 22 by population.
Colleferro has grown substantially since 1951: from 10,088 inhabitants then to 20,381 in 2026, an increase of 102%.
The generational balance is in line with the norm: the ageing index of Colleferro is 244 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 18,361 inhabitants for Colleferro: an expected decline of 9.9% from today.
Compared with the provincial average of Roma (about 34,917 residents per municipality), Colleferro is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 21.011 |
| 2020 | 20.924 |
| 2021 | 20.698 |
| 2022 | 20.664 |
| 2023 | 20.547 |
| 2024 | 20.454 |
| 2025 | 20.426 |
| 2026 | 20.381 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 9865 | 48.4% |
| Women | 10.516 | 51.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 124 |
| 2022 | 134 |
| 2023 | 139 |
| 2024 | 121 |
| 2025 | 98 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 10.088 |
| 1961 | 15.009 |
| 1971 | 18.026 |
| 1981 | 20.259 |
| 1991 | 20.392 |
| 2001 | 20.723 |
| 2011 | 21.574 |
| 2019 | 21.011 |
| 2020 | 20.924 |
| 2021 | 20.698 |
| 2022 | 20.664 |
| 2023 | 20.547 |
| 2024 | 20.454 |
| 2025 | 20.426 |
| 2026 | 20.381 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 17.664 | 43.3% |
| Married | 18.594 | 45.5% |
| Divorced | 1404 | 3.4% |
| Widowed | 3178 | 7.8% |
School-Age Population (2026)
Total 0-18 years: 3024
| Valore | |
|---|---|
| Nido (0-2) | 357 |
| Infanzia (3-5) | 374 |
| Primaria (6-10) | 729 |
| Medie (11-13) | 527 |
| Superiori (14-18) | 1037 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Colleferro population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/colleferro-058034" title="Population pyramid of Colleferro — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/colleferro-058034" alt="Population pyramid of Colleferro — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>