50% of households are couples with children, a share 99% of compared French towns don’t reach
In Juilly, 15% of households are headed by a retired person, beside 32% in the typical compared French town. At the 2023 Census Juilly was home to 2,036 people in 690 households. 5.4% of households have no car. The town has fewer households in social housing than 96% of compared French towns, at 2.3%.
Throughout this page, the Seine-et-Marne 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 Juilly
A town of families
50% of households are couples with children and 9.5% single parents with children; 20% of residents are under 15. Households ↓
Fewer residents than in 2012
Juilly had 2,205 residents at the 2012 census and 2,036 in 2023, down 8%: slower growth than in 94% of compared French towns. Population ↓
A young town
Half of Juilly’s residents are under 38.2 and half over; the median of compared French towns is 44. 20% are under 15 and 11% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −8% since 2012, behind 94% 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 change was −11%; from 2017 to 2023, +4%. Over the same years the median compared French town changed +5%, the median Seine-et-Marne town +8%.
Residents aged 65 and over: 11%, a lower share than 99% of compared French towns
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Juilly 38.2. The median compared French town: 44.
With a median age of 38.2, Juilly is younger than 88% of compared French towns. Typically, 22% of residents are 65 or over in the typical compared French town. The share of residents aged 15 to 24 stands at 15%.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Seine-et-Marne 51.4%, France 51.8%.
One-person households make up 20% in Juilly, less than in 99% of compared French towns
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 Seine-et-Marne median and the France median
Living alone · share
On average, 2.8 people share a household. In the typical compared French town, just over a third of households are one person living alone. Single-parent households are about as common here as in the typical compared French town, at 9.5%.
Empty homes: 2.9%, a lower share than 96% 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
In Juilly, 18% of homes are flats, beside 30% in the typical compared French town. Typically, 6.7% of homes stand empty in the typical compared French town. Across Juilly, 1.5% of homes are second homes.
Standard of living at the median: €30,320 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.
The median standard of living in Juilly is €30,320 a year per consumption unit: higher than in 86% of compared French towns.
15% of households are headed by a manager or professional, a share 77% of compared French towns don’t reach
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
Where 14% of households are headed by a manual worker in the typical compared French town, Juilly has 15%. Typically, 9.4% of households are headed by a manager or professional in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
9.2% of residents are immigrants, more than in 67% of compared French towns
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.
The median compared commune in Seine-et-Marne has 14%; immigrants here make up a share higher than in two thirds of compared French towns. In the typical compared French town, the share of immigrants is 6.5%. For Juilly, the census puts foreign nationals at 4.8%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A higher share of single residents than 86% of compared French towns, at 32%
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
Locally, 44% of residents 15 and over are married. The share of single residents in the typical compared French town is 25%.
In Juilly, 25% of adults out of school hold a higher-education qualification, fewer than in 68% of compared French towns
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
For Juilly, the census puts adults with no qualification at 19%. By way of comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 2nd youngest of 41 French towns of 2,036 to 2,582 people
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.
Juilly and its 6 nearest towns: 4 of them are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Juilly | 38.2 | 11% | 1.5% | 9.2% |
| Saint-Mard 3,832 · 1.6 mi | 38.8 | 14% | 0.7% | 9.3% |
| Dammartin-en-Goële 11,907 · 3.1 mi | 34.8 | 10% | 0.9% | 12% |
| Longperrier 3,152 · 3.1 mi | 33.7 | 7.9% | 0.6% | 16% |
| Othis 6,717 · 4.5 mi | 39.5 | 14% | 0.7% | 8.6% |
| Saint-Soupplets 3,542 · 4.8 mi | 39.3 | 17% | 1.6% | 8.5% |
| Claye-Souilly 13,353 · 5.3 mi | 39.4 | 18% | 1.3% | 9.4% |
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 Juilly
What is the population of Juilly?
2,036 at INSEE’s 2023 census, 8% fewer than in 2012 (2,205).
How old are Juilly’s residents?
The median age is 38.2, younger than 88% of compared French towns. 25% are under 18 and 11% 65 or older.
How many second homes are there in Juilly?
11, with occasional dwellings: 1.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Juilly?
INSEE counts 190 immigrants (born abroad, not French at birth), 9.2% of residents, and 97 foreign nationals (4.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Juilly?
€30,320 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 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.