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Population & demographics
All demographic data for Formia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Formia.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Formia.
Formia is a medium-sized municipality in the province of Latina, Lazio region. With a population of 36.775 inhabitants and a density of 498 per km², it covers an area of 73.8 km². The average declared income is 23.226 €.
Formia in numbers: the analysis
Formia has grown substantially since 1951: from 17,975 inhabitants then to 36,775 in 2026, an increase of 104.6%.
The generational balance is in line with the norm: the ageing index of Formia is 241 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 33,690 inhabitants for Formia: an expected decline of 8.4% from today.
The average municipality in the province of Latina has about 17,186 residents: Formia has 2.1 times as many.
Few municipalities in Lazio are larger: it ranks no. 24 by population out of 378.
Among the 33 municipalities of the province of Latina, Formia ranks 5 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 37.727 |
| 2020 | 37.549 |
| 2021 | 37.341 |
| 2022 | 37.278 |
| 2023 | 37.170 |
| 2024 | 36.883 |
| 2025 | 36.807 |
| 2026 | 36.775 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 17.725 | 48.2% |
| Women | 19.050 | 51.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 214 |
| 2022 | 220 |
| 2023 | 197 |
| 2024 | 193 |
| 2025 | 192 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 17.975 |
| 1961 | 20.528 |
| 1971 | 23.827 |
| 1981 | 30.399 |
| 1991 | 34.957 |
| 2001 | 34.931 |
| 2011 | 36.331 |
| 2019 | 37.727 |
| 2020 | 37.549 |
| 2021 | 37.341 |
| 2022 | 37.278 |
| 2023 | 37.170 |
| 2024 | 36.883 |
| 2025 | 36.807 |
| 2026 | 36.775 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 30.562 | 41.5% |
| Married | 35.212 | 47.8% |
| Divorced | 2588 | 3.5% |
| Widowed | 5232 | 7.1% |
School-Age Population (2026)
Total 0-18 years: 5534
| Valore | |
|---|---|
| Nido (0-2) | 588 |
| Infanzia (3-5) | 671 |
| Primaria (6-10) | 1430 |
| Medie (11-13) | 977 |
| Superiori (14-18) | 1868 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Formia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/formia-059008" title="Population pyramid of Formia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/formia-059008" alt="Population pyramid of Formia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>