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Jouy-en-Josas

Jouy-en-Josas has 7,985 residents and 3,696 homes, 35% of them houses. Homes sold for a median €4,360/m² over five years, 9% above the département figure. The median living standard is €35,740 a year. For the average resident, 58 everyday shops and services are within a 15-minute walk.

Commune · Insee 78322 · Postcode 78350 · Updated 24 October 2026
7,985residents2022 census
€4,360/m²median price per m²Yvelines : €4,010/m²
46%green space within 500 mneighbourhood average
58services within a 15-minute walkneighbourhood average
Jouy-en-Josas · 4 IRIS neighbourhoods
Map of Jouy-en-Josas: Share of land within 500 m that is green space
0%30%+
Share of land within 500 m that is green space

Sources: IGN and Insee, IRIS boundaries and Admin Express 2024 (Open Licence 2.0) · © OpenStreetMap contributors (ODbL) · Insee, Filosofi 2021 income data (Open Licence 2.0)

All 4 IRIS neighbourhoods.

IRIS are Insee’s statistical neighbourhoods of about 2,000 people each. Colour shows where each one sits among the others.

NeighbourhoodResidentsLiving standardHome ownersSocial housingAged 75+UnemploymentGreen 500 mServices 15 min
Jouy Centre Petit Jouy2,726€31,60045%19%7%9.0%26%83
HEC-Domaine Saint-Marc1,736–2%93%0%24.2%47%30
Val d'Albian Parc de Diane1,506€38,39088%0%15%5.2%55%60
Les Metz Pont Colbert2,016€40,42083%5%13%6.3%65%46

Sources: Insee, 2022 population census (sub-municipal files, Open Licence 2.0) · Insee, Filosofi 2021 income data (Open Licence 2.0) · © OpenStreetMap contributors (ODbL)

People.

7,985 residents and 3,423 households at the 2022 census, next to the département figure.

13%
aged under 15
35%
aged 15–29
20%
aged 60 and over
49%
of households are people living alone
25%
of households are couples with children
7%
of households are single-parent families

Source: Insee, 2022 population census (sub-municipal files, Open Licence 2.0)

Homes.

3,696 homes, 92% of them main residences, with 3.8 rooms on average.

35%
of homes are houses
51%
of households own their home
29%
of households rent social housing (HLM)
4%
second homes
4%
empty homes
69%
of households have a car

When main homes were built

before 19196%
1919–19454%
1946–197042%
1971–199032%
1991–20058%
2006–20197%

Source: Insee, 2022 population census (sub-municipal files, Open Licence 2.0)

Property prices.

327 house and flat sales over five years.

€4,360/m²median price, houses and flatsYvelines : €4,010/m²
€3,980/m²flats200 sales
€5,970/m²houses127 sales

Median prices from sales published in France’s Demandes de valeurs foncières (DVF) over ten half-years, for sales of a single property. Individual sales are not shown. A median is only given where there were at least ten sales.

Source: DGFiP property sales (DVF), data.gouv.fr statistics (Open Licence 2.0)

Income and work.

Median living standard of €35,740 a year in 2021.

€35,740median living standard a year2021
6.0%poverty ratethreshold: 60% of national median
€16,980the lowest-income 10% live on less than1st decile
€68,280the highest-income 10% live on more than9th decile
9.5%
unemployment among 15–64s (census definition)
71%
of over-15s who have left school hold a higher-education degree
25%
managers and professionals among over-15s
16%
retired among over-15s

Living standard is a household’s disposable income after taxes and benefits, divided by its consumption units. Half of residents live on less than the median. Income on its own says nothing about what a neighbourhood is like to live in.

Sources: Insee, Filosofi 2021 income data (Open Licence 2.0) · Insee, 2022 population census (sub-municipal files, Open Licence 2.0)

Safety.

Offences recorded in 2025, with the rate per 1,000 residents and the change from 2024.

Indicator2025RateChange
Burglaries of homes4311.6 per 1,000+23%
Thefts from people without violence202.5 per 1,000−33%
Physical violence outside the family60.8 per 1,000−33%
Domestic physical violence172.1 per 1,000+6%
Sexual violence91.1 per 1,000−44%
Vehicle thefts111.4 per 1,000−31%
Thefts from vehicles91.1 per 1,000−31%
Thefts of vehicle parts141.8 per 1,000−22%
Deliberate damage and vandalism445.5 per 1,000+7%
Fraud and payment card fraud617.6 per 1,000+42%

These figures count offences recorded by the police and gendarmerie, not how safe a place feels, and not every offence is reported. Rates are per 1,000 residents (per 1,000 homes for burglaries): where many people visit but few live, as in town centres and shopping areas, they are naturally higher. Small counts are not published.

Source: Ministry of the Interior (SSMSI), recorded crime by municipality 2024–2025 (Open Licence 2.0)

Everyday life.

What is within one kilometre of the town hall. For the average resident, 20 public transport stops are within 800 m, and the nearest rail or tram station is 990 m away.

Supermarkets and convenience shops2
Bakeries1
Pharmacies2
Doctors0
Dentists0
Cafés and bars0
Restaurants9
Parks and gardens8
Playgrounds3
Sports pitches25
Gyms and sports halls5
Libraries1
Nurseries and childcare1
Bus stops38
Tram and metro stops0
Railway stations1

Source: © OpenStreetMap contributors (ODbL)

Health, shops and services.

Facilities and services in Jouy-en-Josas on 1 January 2025, from Insee’s permanent database of facilities.

3.8GPs per 10,000 residentsdépartement: 6.5
3pharmacieson 1 January 2025
2food storessupermarkets, convenience stores, grocers
General practitioners3
Dentists3
Nurses1
Physiotherapists5
Pharmacies3
Supermarkets and hypermarkets1
Convenience stores and grocers1
Bakeries7
Butchers1
Petrol stations1
EV charging stations4
Post offices and postal points2
Banks4
Restaurants14
Hairdressers8
Nurseries4
Swimming pools1
Sports halls4
Gyms2
Libraries1

Insee’s permanent database of facilities lists the shops, services and health professionals present in each commune on 1 January. Health professionals in private practice are counted one by one; several may work at the same address.

Source: Insee, permanent database of facilities 2025 (Open Licence 2.0)

Natural and industrial hazards.

Major hazards the State lists for Jouy-en-Josas, prevention plans in force and natural-disaster declarations since 1982.

Floodingprevention plan
Dam failure
Transport of hazardous goods
11natural-disaster declarationssince 1989
October 2024latest recognised eventFloods and mudflows

Natural-disaster declarations by type

Floods and mudflows6
Drought (clay shrinkage)4
Ground movement1

A natural-disaster declaration (arrêté CatNat) lets insurers pay out for the damage. The count reflects past events, not a forecast of future risk. The list of hazards comes from each département’s major-risk file; a prevention plan in force limits building in exposed zones.

Source: Géorisques, GASPAR database (Open Licence 2.0), as of 5 October 2026

Schools.

6 primary and nursery schools, 0 collèges and 1 lycées are open here, 6 of them state schools.

Ecole maternelle Bourget CalmetteNursery school · state
Ecole maternelle Jacques ToutainNursery school · state
Ecole maternelle Parc de DianeNursery school · state
Ecole élémentaire Bourget CalmettePrimary school · state
Ecole élémentaire Emile MousseauPrimary school · state
Ecole élémentaire du Parc de DianePrimary school · state
Centre privé LEA-CFI Jouy en JosasUpper secondary (lycée) · private

Source: Ministry of Education, school directory (Open Licence 2.0). Admission depends on catchment rules and each school’s own policy.

Nearby communes.

The communes in the département whose town halls are closest.