A lower share of couples with children than 99% of compared French towns, at 10%
Households headed by a manual worker: 23%, above 93% of compared French towns. Serdinya is home to 236 residents in 110 households, by the 2023 Census. On the census count, 7.6% of homes are flats. At 16%, the share of households without a car is higher than in 73% of compared French towns.
Throughout this page, the Pyrénées-Orientales median and the France median are the median of compared communes (those with an overall grade), each figure its own median. Source: INSEE, census 2023.
What stands out about the people of Serdinya
One home in two is a second home
The census counted 110 second homes and occasional dwellings in Serdinya, 43% of its 250 homes: higher than in 97% of compared French towns. 96% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
An older town
Half of Serdinya’s residents are under 51.7 and half over; the median of compared French towns is 44. 36% are 65 or older (France median 22%), 7.9% 80 or older. Ages ↓
Empty homes
The census found 32 homes empty (13%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Second homes: 43%, a higher share than 97% of compared French towns
Every home the census counted: main residences, second homes and occasional dwellings (INSEE counts them together), and empty homes. Owning and renting are on Cost of living.
All homes · share of homes
Type of home
Cars per household · share of households
Recent arrivals (under two years) make up 10% of households; long-stayers (30 years or more) 24%. Households in social housing are rarer here than in 99% of compared French towns. By way of comparison, 2.1% of homes are second homes in the typical compared French town. Set against 6.7% in the typical compared French town, 13% of homes stand empty in Serdinya.
A +14% change since 2012: faster than 80% of compared French towns
Residents at INSEE’s last three censuses, each recast in the 2026 commune boundaries. France has no yearly estimate by commune between censuses.
2012 to 2023
2017 to 2023
From 2012 to 2017 the population moved +19%, and from 2017 to 2023 −4%; the median compared French town changed +5% and the median Pyrénées-Orientales town +10%.
More residents aged 65 and over than 95% of compared French towns: 36%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Serdinya 51.7. The median compared French town: 44.
Half of Serdinya’s residents are over 51.7, older than in 88% of compared French towns. The census found that 9.6% of residents are 15 to 24 in the town. Across the comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Pyrénées-Orientales 52.6%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Above 99% of compared French towns: 24% of households are single parents
A household is everyone who shares a main home (résidence principale). Household types come from INSEE’s fuller sample of a quarter of census forms.
Against the Pyrénées-Orientales median and the France median
Living alone · share
One-person households: 38% here and 35% in the typical compared French town. The wider picture: 10% of households are single parents in the typical compared French town. Households here average 2.1 people each.
Median living standard: €21,330 a year
The standard of living (niveau de vie) is a household’s disposable income after taxes and benefits, divided by its consumption units (UC) to allow for its size and make-up: 1 for the first adult, 0.5 for each other person 14 or older, 0.3 for each child under 14.
Medians of compared communes. Source: INSEE, Filosofi 2023.
Per consumption unit, half of residents live on more than €21,330 a year: lower than in 92% of compared French towns.
A higher share of households headed by a retired person than 93% of compared French towns, at 45%
Households by the socio-professional group (PCS) of their reference person, INSEE’s own categories. Jobs and commuting are on the Work & commute page.
Households by reference person’s group · share of households
Households headed by a manager or professional are rarer here than in 99% of compared French towns. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 7.3% of Serdinya’s residents
INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.
Share of residents · census 2023
Immigrant (immigré)
Born abroad, not French at birth. Someone stays an immigrant after becoming French. A French citizen born abroad (for example in Algeria before 1962) is not one.
Foreign national (étranger)
Not a French citizen today, wherever born. A child born in France to foreign parents can be a foreign national without being an immigrant.
That is higher than in 56% of compared French towns; the median compared commune in Pyrénées-Orientales has 7.9%. 5.1% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
23% of residents 15 and over are single, below 68% of compared French towns
Residents 15 and over by how they live: the census asks both the legal status and whether people live as a couple.
Residents 15 and over · share
At 42%, the share of married residents is lower than in 56% of compared French towns. As a yardstick, 25% of residents 15 and over are single in the typical compared French town.
Serdinya ranks below 92% of compared French towns on graduates of higher education: 18%
Highest diploma of residents 15 and over who have left education, in French terms: the levels don’t map one-to-one to UK or U.S. ones.
Highest diploma · 15 and over, out of education
Compared with other places, adults with no qualification are common here: 20%, more than in 53% of compared French towns. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
10th highest median age among 41 French towns of 236 to 2,582
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Among its 3 nearest neighbors, 2 are older than Serdinya
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Serdinya | 51.7 | 36% | 43% | 7.3% |
| Prades 6,148 · 6.5 mi | 53.9 | 34% | 11% | 11% |
| Ille-sur-Têt 5,556 · 17 mi | 49.6 | 28% | 5.1% | 14% |
| Arles-sur-Tech 2,815 · 17.6 mi | 54.8 | 32% | 9.6% | 9.6% |
Health, work, housing and schools
What this data can and can’t tell you
- Census 2023. INSEE’s census is a rolling survey: a fifth of small communes each year, 8% of homes in large ones each year. “2023” pools the surveys of 2021 to 2025, so the figures describe the town around 2023, not on one day.
- Medians of compared communes. The comparisons are the median of the département’s compared communes and of France’s (those with an overall grade), each figure its own median: not the total for the département or for France, which large cities pull towards their own figures.
- Immigrants and foreign nationals. INSEE’s two measures: an immigrant was born abroad without French nationality; a foreign national isn’t French today. Neither is a count of people born abroad, which INSEE doesn’t publish by commune.
- Second homes. Homes used for holidays or weekends, with occasional dwellings (kept for work, for example), which INSEE counts together. Their owners are counted where they live, not here.
- Standard of living. INSEE’s Filosofi: disposable income per consumption unit, from tax and benefit files, 2023. The poverty rate is the share of residents below 60% of France’s median. Not published for the smallest communes.
- What France doesn’t ask. The French census asks nothing about ethnicity, religion, language or health, so this page has no such section.
Questions about who lives in Serdinya
What is the population of Serdinya?
236 at INSEE’s 2023 census, 14% more than in 2012 (207).
How old are Serdinya’s residents?
The median age is 51.7, older than 88% of compared French towns. 19% are under 18 and 36% 65 or older.
How many second homes are there in Serdinya?
110, with occasional dwellings: 43% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Serdinya?
INSEE counts 17 immigrants (born abroad, not French at birth), 7.3% of residents, and 12 foreign nationals (5.1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Serdinya?
€21,330 a year per consumption unit in 2023 (median of compared French towns €25,970). Source: INSEE, Filosofi.
Sources: INSEE, census 2023 (population, ages, households, homes, marital status, diplomas, immigrants, foreign nationals, employment), 2026 geography · INSEE, Filosofi 2023 (standard of living, poverty) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.