Fewer flats than 94% of compared French towns: 5.7%
One-person households: 28% here and 35% in the typical compared French town. Saint-Julien counted 2,101 residents and 900 households at the 2023 Census. Locally, 0.8% of homes are second homes. 40% of households are headed by a retired person, a higher share than in 84% of compared French towns.
Throughout this page, the Côtes-d'Armor 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.
+2% since 2012: slower than 63% 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
Over those years, the median Côtes-d'Armor town changed +3% and the median compared French town +5%. Between 2012 and 2017 the population moved −1%, then +2% to 2023.
Saint-Julien is older than 67% of compared French towns: a median age of 46.6
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Saint-Julien 46.6. The median compared French town: 44.
Residents aged 15 to 24: 11%, near enough the figure in the typical compared French town. Put another way, about one in four: 23% of residents are 65 or over.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Côtes-d'Armor 52.9%, France 51.8%.
30% of households are couples with children, a share 74% of compared French towns don’t reach
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 Côtes-d'Armor median and the France median
Living alone · share
8.7% of households are single parents; in the typical compared French town the figure is 10%. The comparison figure for couples with children is 25% in the typical compared French town. The average household has 2.3 people.
Below 80% of compared French towns: 6.4% of households rent social housing (HLM)
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
5.6% of homes stand empty (typical compared French town: 6.7%). Elsewhere, 12% of households rent social housing (HLM) in the typical compared French town. Census figures put households without a car at 6.3% in Saint-Julien.
Median living standard: €25,540 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 €25,540 a year: lower than in 54% of compared French towns. Below the poverty line: 7.0% of residents.
Saint-Julien sits below 56% of compared French towns for households headed by a manual worker (13%)
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
On the census count, one in ten households are headed by a manager or professional. Against that, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A smaller share of immigrants than 82% of compared French towns: 3%
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.
By its share of foreign nationals (2.2%), Saint-Julien is below 76% of compared French towns. The share of immigrants in the typical compared French town is 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Above 74% of compared French towns: 46% of residents 15 and over are married
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
23% of residents 15 and over are single; in the typical compared French town the figure is 25%. The comparison figure for married residents is 43% in the typical compared French town.
Saint-Julien sits below 76% of compared French towns for adults with no qualification (15%)
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
29% of adults out of school hold a higher-education qualification. In the typical compared French town, adults with no qualification come to 19%.
Ranked by age, 18th oldest of 41 French towns this size
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Saint-Julien sits below 3 of its 6 closest neighbors on median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Saint-Julien | 46.6 | 23% | 0.8% | 3% |
| Plaintel 4,602 · 2.5 mi | 41.8 | 21% | 2.6% | 1.8% |
| Plédran 6,933 · 3.2 mi | 42.9 | 21% | 2.3% | 2.2% |
| Ploufragan 11,507 · 3.2 mi | 47.3 | 25% | 1.8% | 6.2% |
| Trégueux 8,450 · 4.2 mi | 48.6 | 29% | 1.2% | 4.1% |
| Saint-Brieuc 44,364 · 5 mi | 42.3 | 23% | 5% | 9.6% |
| Quintin 2,739 · 5.4 mi | 50.4 | 32% | 2.6% | 3.5% |
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 Saint-Julien
What is the population of Saint-Julien?
2,101 at INSEE’s 2023 census, 2% more than in 2012 (2,069).
How old are Saint-Julien’s residents?
The median age is 46.6, older than 67% of compared French towns. 22% are under 18 and 23% 65 or older.
How many second homes are there in Saint-Julien?
7, with occasional dwellings: 0.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Julien?
INSEE counts 63 immigrants (born abroad, not French at birth), 3% of residents, and 46 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Saint-Julien?
€25,540 a year per consumption unit in 2023 (median of compared French towns €25,970); 7.0% of residents live below the poverty line. 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 9, 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.