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Population & demographics
All demographic data for Alatri: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Alatri.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Alatri.
Alatri is a medium-sized municipality in the province of Frosinone, Lazio region. With a population of 27.436 inhabitants and a density of 285 per km², it covers an area of 96.2 km². The average declared income is 21.098 €.
Alatri in numbers: the analysis
Few municipalities in Lazio are larger: it ranks no. 28 by population out of 378.
The average municipality in the province of Frosinone has about 5,058 residents: Alatri has 5.4 times as many.
Demographic projections to 2050 estimate about 26,056 inhabitants for Alatri: an expected decline of 5% from today.
The generational balance is in line with the norm: the ageing index of Alatri is 199 (over-65s per 100 under-14s).
Alatri has grown substantially since 1951: from 20,459 inhabitants then to 27,436 in 2026, an increase of 34.1%.
By population, Alatri ranks no. 3 among the 91 municipalities of the province of Frosinone.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 27.852 |
| 2020 | 27.651 |
| 2021 | 27.768 |
| 2022 | 27.860 |
| 2023 | 27.792 |
| 2024 | 27.605 |
| 2025 | 27.518 |
| 2026 | 27.436 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 13.441 | 49.0% |
| Women | 13.995 | 51.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 194 |
| 2022 | 200 |
| 2023 | 161 |
| 2024 | 167 |
| 2025 | 157 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 20.459 |
| 1961 | 21.127 |
| 1971 | 20.132 |
| 1981 | 22.809 |
| 1991 | 25.038 |
| 2001 | 27.068 |
| 2011 | 28.609 |
| 2019 | 27.852 |
| 2020 | 27.651 |
| 2021 | 27.768 |
| 2022 | 27.860 |
| 2023 | 27.792 |
| 2024 | 27.605 |
| 2025 | 27.518 |
| 2026 | 27.436 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 24.028 | 43.7% |
| Married | 25.394 | 46.2% |
| Divorced | 1606 | 2.9% |
| Widowed | 3994 | 7.3% |
School-Age Population (2026)
Total 0-18 years: 4424
| Valore | |
|---|---|
| Nido (0-2) | 482 |
| Infanzia (3-5) | 613 |
| Primaria (6-10) | 1111 |
| Medie (11-13) | 808 |
| Superiori (14-18) | 1410 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Alatri population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/alatri-060003" title="Population pyramid of Alatri — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/alatri-060003" alt="Population pyramid of Alatri — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>