Each edition grades its towns against each other only.
4,141 people live in this town in Yvelines, Île-de-France.
Mareil-Marly does the important things well, at a cost. On health it is strong — after allowing for care homes, deaths from 2016 to 2025 were 30% below expected, against 12% below for the median of compared French towns. With an A− overall, Mareil-Marly sits #15 of 91 in Yvelines. Nationally, it does better than just over four fifths of compared French towns. Walkability is a strength too: 99% of residents live within 800 m of a bakery, and 35% of working residents walk, cycle or take public transport to work. Prices are high against local incomes: at the median price, a 70 m² home costs 11.3 times the median annual income per consumption unit in the intercommunality.
Hazard risk isn’t graded in France yet: national flood maps cover only some areas. The overall grade uses the other six subjects.
The 2 things Mareil-Marly does most differently from other towns.
Each subject compares Mareil-Marly with other French towns of 2,500 or more, ordered by how far its rank is from the middle. American and UK towns are graded separately.
How TownRatings grades French towns →
The Culture ministry lists 1 historic monument in Mareil-Marly: 1 classé (France’s highest heritage protection) and 0 inscrit (the second level).
The oldest protected part dates from the 13th century; the first monument here was protected in 1853.
Heritage, museums and other places to visit in and near Mareil-Marly. Best known first.
MuseumMusée d'Archéologie nationale2.3 km northeast, in Saint-Germain-en-Laye
MuseumChâteau de Monte-Cristo1.9 km east, in Le Port-Marly
MuseumMaison Claude Debussy2 km northeast, in Saint-Germain-en-Laye
MuseumMusée départemental Maurice-Denis1.4 km northeast, in Saint-Germain-en-Laye
GardenDésert de Retz4.8 km west, in ChambourcyPhotos from Wikimedia Commons, each under its own licence (our copy, resized).
Data highlights are ordered by what stands out in Mareil-Marly.
Mareil-Marly has 700 jobs for 1,900 working residents, 0.4 per worker. Unemployment stood at 6.8%, below Yvelines’ towns (8.7%) and compared French towns (10.1%) alike. 5.4% of the town’s working residents had no journey to work at the census.
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
The median sale price was €5,638/m², higher than both Yvelines’ towns (€3,717/m²) and compared French towns (€2,430/m²). The split in Mareil-Marly: €6,008/m² for houses, €4,634/m² for apartments. Houses made up nearly three quarters of the homes sold; apartments the rest.
| By type | Median per m² | Sales |
|---|---|---|
| Houses | €6,008/m² | 89 |
| Apartments | €4,634/m² | 32 |
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Care access and life expectancy are shown for context, not graded.
From 2016 to 2025, 231 residents of Mareil-Marly died, against 329 expected from France’s death rates at each age: 30% fewer. In Yvelines, women can expect to live 86.8 years and men 82.3 (2025), against 85.9 and 80.3 across France. For a family doctor, residents of Mareil-Marly can choose among 2 GPs.
Source: INSEE, deaths by commune of residence 2016–2025 and censuses; Eurostat, death rates by age (© European Union); INSEE, BPE 2025; DREES, APL 2024; INSEE, life expectancy by département 2025 · Licence Ouverte · The adjustment for care homes is TownRatings’ own modeling, not an official figure.
21% of residents are children under 15. People 65 and over make up 16% of the town, near Yvelines’ towns (17%) and lower than compared French towns (22%). The share aged 15 to 24 is 12%.
51% women, 49% men
About an even split. Median share of women: Yvelines 51.6%, France 51.8%.
| Mareil-Marly | Yvelines median | France median | |
|---|---|---|---|
| Under 15 | 21% | 20% | 17% |
| 15–24 | 12% | 12% | 11% |
| 25–44 | 19% | 25% | 23% |
| 45–64 | 31% | 26% | 26% |
| 65+ | 16% | 17% | 22% |
| No diploma | 5.7% | 13% | 19% |
| CAP or BEP | 7.1% | 16% | 26% |
| Baccalauréat | 11% | 16% | 18% |
| Higher education | 73% | 49% | 30% |
INSEE, census 2023 · Yvelines median and France median: the median of compared communes
Primary schools aren’t graded: France doesn’t publish their results by school.
Near Mareil-Marly, 97.6% of lycée candidates passed the bac, above Yvelines’ towns (93.9%) and compared French towns (92.9%) alike. Collège pupils travel 0.9 mi to the nearest one. Its schools’ results rank #6 of 94 in Yvelines.
| School | Level | Candidates | Passed, 2025 |
|---|---|---|---|
| Collège Notre-Dame PrivateNearest collègeCollège | Collège | 225 | 100%+1 pt |
| Lycée Notre-Dame PrivateNearest lycéeGeneral lycée | General lycée | 205 | 100%±0 pts |
| Lycée Jean-Baptiste PoquelinBest against expectations: 7 points above the expected rateVocational lycée | Vocational lycée | 114 | 93%+7 pts |
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
In 2025, burglary led the graded crimes in Mareil-Marly. On average over 2023–2025, every 1,000 residents saw 3.8 violent offenses and 15.6 graded property crimes a year. Recorded offenses locally came to 69 in 2025.
Not in the gradeTheft without violence, drug use and fraud are shown for information but left out of the Safety Grade, which counts violence plus burglaries, vehicle thefts, thefts from vehicles and criminal damage per resident.
Source: SSMSI (Interior Ministry), recorded crime by commune, 2023–2025 · Licence Ouverte · For other physical violence, sexual violence, armed robbery and theft from vehicles, the count isn’t published when it’s small (five or fewer in a year of the last three), so the index uses the département’s average, 8.7% of the index here. The count covers the offense categories the Safety Grade uses.
France has no History Grade yet: this card describes, it doesn’t grade.
Among the classé monuments in Mareil-Marly is Église Saint-Etienne et ses abords. Protection here reaches back to the 13th century. 5.7% of homes date from before 1919.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Mareil-Marly has one historic monument; beside it, the nearest classé monuments in other towns, within 15.5 mi.
Église Saint-Etienne et ses abords: Photo: This illustration was made by Peter Potrowl . · CC BY-SA 4.0
Wikidata has nobody with a French article born in Mareil-Marly yet.
The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Mareil-Marly | 4,141 | — | A− | D− | B | A |
| Marly-le-Roi | 16,756 | 0.8 | A− | D | B− | A |
| L'Étang-la-Ville | 5,157 | 1 | B+ | D | C+ | A+ |
| Saint-Germain-en-Laye | 45,931 | 1.1 | B+ | D− | B− | A |
| Le Pecq | 16,059 | 1.4 | A | D | A− | A |
| Le Port-Marly | 5,559 | 1.4 | B+ | D | C+ | A+ |
| Louveciennes | 7,990 | 2.2 | B+ | D | C− | A |
People: INSEE, census 2023. Miles: center to center.
It grades B for safety, #40 of 91 in Yvelines. In 2025 police and gendarmerie recorded 34 burglaries and 15 acts of criminal damage.
They grade B+, better than 67% of compared French towns and #6 of 94 in Yvelines. 100% of 205 candidates passed the bac at Lycée Notre-Dame in 2025, at the expected rate given its pupils’ backgrounds. Primary schools aren’t graded: France doesn’t publish their results by school.
Incomes are higher than in most compared French towns, so Mareil-Marly grades D− for cost of living.
Commune in Yvelines, Île-de-France
Mareil-Marly is a commune of 4,141 people in the Communauté d'agglomération Saint Germain Boucles de Seine. TownRatings compares communes, France’s local unit: each has its own mayor and its own statistics. Its area takes in the town and the countryside around it.
Built from INSEE’s 2026 official geography (COG) and IGN Admin Express boundaries
Sources: INSEE, census 2023 (population, employment, commuting) · INSEE, Filosofi 2023 (income per consumption unit, poverty) · DGFiP, DVF property sales, July 2023 to June 2026 · Housing Ministry, Carte des loyers 2025 · SSMSI, recorded crime by commune, 2023–2025 · Ministry of Education (DEPP), brevet and bac results and value-added indicators, 2025 · INSEE, deaths by commune of residence 2016–2025 and censuses 2012–2023; Eurostat, death rates by age (© European Union); INSEE, BPE 2025 (care homes, emergency and maternity units, GPs, pharmacies); DREES, APL 2024; INSEE, life expectancy by département 2025 (provisional) · INSEE, BPE 2025 and Filosofi 200 m grid (walking distances) · IGN Admin Express (boundaries) · TownRatings grades: our own summary of the data, ranking French towns against each other only, updated October 30, 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.