First pick
Parc de l'Hôtel de Ville
Park or garden
3.9 ha1.3 km of path
20 minto walk all 1.3 km of path
Centralin the middle of Chilly-Mazarin
Directionsto a point inside
Photo: Poudou99 · CC BY 4.02.8%woodland
Outdoors in Chilly-Mazarin · protected areas, woods and footpaths
Chilly-Mazarin has more footpaths per km² than 8 in 10 French towns
Footpaths add up to 24 km across Chilly-Mazarin (4.2 km per km²). Mapped woodland covers 2.8% of Chilly-Mazarin. No protected area reaches Chilly-Mazarin; the nearest, Bassin de la Bièvre nature reserve, is 5.3 km from the town center. France has no Outdoors Grade yet: these are the figures, each beside the compared towns’ median.
Protected areas
0%
of the commune’s land
Nearest: Bassin de la Bièvre nature reserve, 5.3 km
Woodland
2.8%
of the land, mapped on OpenStreetMap
Compared town: 13%
Footpaths
24 km
4.2 km per km²
Compared town: 1.7 km per km²
Hiking routes
0 km
waymarked, GR and others
Compared town: 0.3 km per km²
Parks & woods
4
named, in or within 400 m of the commune
First: Parc de l'Hôtel de Ville
Throughout this page, the Essonne median and the France median are the median of compared communes (those with an overall grade), each figure its own median.
What kind of place
What kind of outdoors place is Chilly-Mazarin?
Read from the data: what stands out first, good and less good.
A place of footpaths4.2 km per km² of mapped footpath, against 1.7 km per km² for the median compared town.Protected land nearbyBassin de la Bièvre nature reserve is 5.3 km from the town center.Little mapped woodland2.8% of the land, against 13% for the median compared town.
What sets Chilly-Mazarin apart: its footpaths, then protected land close by. It is shorter on woodland.
Against French towns
How Chilly-Mazarin compares with French towns
Each figure against the 3,798 compared French towns (communes with an overall grade): the marked bar is the town’s, the line the median. Described, not graded.
Protected areas0%Share of the land in a national park, regional nature park, nature reserve or Natura 2000 site
22out of 100
Woodland2.8%Share of the land mapped as forest or woods on OpenStreetMap
14out of 100
Footpaths4.2 km per km²Km of mapped footpath and track open on foot, per km² of the commune
86out of 100
Hiking routes0 km per km²Km of waymarked hiking routes (GR and others), per km² of the commune
12out of 100
Percentiles among compared French towns; ties count half.
Towns its size
Chilly-Mazarin has the 12th most footpaths per km² of 41 towns its size
The 40 compared French towns nearest in population (19,847 to 21,071 residents), by km of footpath per km². Hover for each one’s protected land and woods; click for its page.
From Sceaux (11.7 km per km²) to Bressuire (0.6 km per km²).
Every town in the comparison
| Town | Paths (km/km²) | Woodland | Protected | Coast | |
|---|---|---|---|---|---|
| 1 | Sceaux Hauts-de-Seine | 11.7 | 17% | 0% | 154 km |
| 2 | Chaville Hauts-de-Seine | 8.3 | 46% | 0% | 148 km |
| 3 | Gentilly Val-de-Marne | 8 | 1.8% | 0% | 153 km |
| 4 | Mont-Saint-Aignan Seine-Maritime | 7.3 | 12% | 0% | 50 km |
| 5 | La Celle-Saint-Cloud Yvelines | 6.6 | 29% | 0% | 142 km |
| 6 | Maurepas Yvelines | 5.8 | 29% | 0.1% | 137 km |
| 7 | Carrières-sous-Poissy Yvelines | 5.3 | 5.6% | 0% | 129 km |
| 8 | Coudekerque-Branche Nord | 5.1 | 14% | 0% | 2.2 km |
| 9 | Fougères Ille-et-Vilaine | 4.8 | 1.8% | 0% | 33 km |
| 10 | Paris 2e Paris | 4.6 | 0% | 0% | 148 km |
| 11 | Joinville-le-Pont Val-de-Marne | 4.4 | 1.7% | 0% | 158 km |
| 12 | Chilly-Mazarin Essonne | 4.2 | 2.8% | 0% | 163 km |
| 13 | Albertville Savoie | 4.1 | 47% | 0% | 228 km |
| 14 | Bouguenais Loire-Atlantique | 4 | 18% | 8.4% | 33 km |
| 15 | La Chapelle-sur-Erdre Loire-Atlantique | 3.8 | 20% | 1.9% | 43 km |
| 16 | Bruges Gironde | 3.7 | 9.3% | 23% | 14 km |
| 17 | Lingolsheim Bas-Rhin | 3.7 | 4.5% | 0% | 450 km |
| 18 | Forbach Moselle | 3.5 | 32% | 0% | 359 km |
| 19 | Croix Nord | 3.4 | 4.6% | 0% | 61 km |
| 20 | Cournon-d'Auvergne Puy-de-Dôme | 3.3 | 6.6% | 6.3% | 251 km |
| 21 | Denain Nord | 3.2 | 5.9% | 0.1% | 103 km |
| 22 | Cugnaux Haute-Garonne | 3.1 | 6.8% | 0% | 151 km |
| 23 | Wasquehal Nord | 3.1 | 4.7% | 0% | 60 km |
| 24 | Bourg-la-Reine Hauts-de-Seine | 3.1 | 0% | 0% | 155 km |
| 25 | Le Creusot Saône-et-Loire | 3 | 23% | 0% | 361 km |
| 26 | Concarneau Finistère | 2.8 | 13% | 0.3% | On it |
| 27 | Grande-Synthe Nord | 2.8 | 5.3% | 7.4% | On it |
| 28 | Sarreguemines Moselle | 2.6 | 32% | 0.9% | 374 km |
| 29 | Chaumont Haute-Marne | 2.6 | 52% | 0.3% | 342 km |
| 30 | Villeneuve-le-Roi Val-de-Marne | 2.6 | 0.9% | 0% | 164 km |
| 31 | Beaune Côte-d'Or | 2.6 | 16% | 25% | 389 km |
| 32 | Halluin Nord | 2.5 | 4.8% | 0% | 50 km |
| 33 | Carquefou Loire-Atlantique | 2.5 | 14% | 5% | 47 km |
| 34 | Lannion Côtes-d'Armor | 2.3 | 15% | 5.9% | On it |
| 35 | Vence Alpes-Maritimes | 2.2 | 28% | 64% | 8.3 km |
| 36 | Cahors Lot | 1.9 | 42% | 0% | 172 km |
| 37 | Bourg-lès-Valence Drôme | 1.8 | 1.8% | 0% | 166 km |
| 38 | Mitry-Mory Seine-et-Marne | 1 | 4.8% | 0% | 151 km |
| 39 | Saint-Mandé Val-de-Marne | 1 | 0% | 0% | 154 km |
| 40 | L'Isle-sur-la-Sorgue Vaucluse | 0.8 | 4.8% | 7.3% | 54 km |
| 41 | Bressuire Deux-Sèvres | 0.6 | 2.4% | 0% | 77 km |
The map
Parks, woods, footpaths & countryside
Tap a number to zoom to a park or wood. Tap a layer to hide it. The dashed line is the commune’s boundary.
Green: parks, gardens and woods mapped on OpenStreetMap, named or not.© OpenStreetMap contributors · INPN / PatriNat · IGN
Places to walk
Parks and woods to walk in, in and around Chilly-Mazarin
Named parks, gardens and woods in the commune or within 400 m, the biggest and best-pathed first: Parc de l'Hôtel de Ville leads, at 3.9 ha. Directions go to a point inside.
Espace Marcel Dassault
Park or garden · 120 m outside the commune
5.4 ha0.4 km of path
2.7 km northfrom the center
Directionsto a point inside
Parc des Champs Foux
Park or garden
2.7 ha0.5 km of path
5 minto walk all 0.5 km of path
0.8 km north-eastfrom the center
Directionsto a point inside
Square Boieldieu
Park or garden · 290 m outside the commune
0.4 ha0.3 km of path
1.4 km westfrom the center
Directionsto a point inside
Source: © OpenStreetMap contributors (ODbL): named parks, gardens and woods; sizes are the whole site.
Protected areas
Bassin de la Bièvre nature reserve is the nearest protected area, 5.3 km away
The protected areas reaching the commune, and the nearest: national parks, regional nature parks, nature reserves and Natura 2000 sites.
Nature reserve
Bassin de la Bièvre nature reserve
5.3 km from the town center
Share of the commune’s land
Any protected area0%
Designations overlap (a regional park can hold a Natura 2000 site), so the rows don’t add up; the first counts each piece of land once.
Source: INPN / PatriNat, protected areas July 2026, Natura 2000 December 2024; shares of IGN’s commune boundary.
Footpaths and woods
Footpaths and woods in Chilly-Mazarin
Paths, bridleways, steps and tracks open on foot, and waymarked hiking routes, mapped on OpenStreetMap inside the commune; woods are mapped forest and woodland, private woods included.
Footpaths
24 km
4.2 km per km²
Hiking routes
0 km
waymarked: 0 km per km²
Woodland
2.8%
about 0.2 km² of mapped woods
Km per km² of the commune · mapped on OpenStreetMap
Chilly-MazarinEssonne medianFrance median
Footpaths4.2
Hiking routes0
02.55 km per km²
Share of the land · mapped woods and forest
Chilly-MazarinEssonne medianFrance median
Woodland2.8%
0%50%100%
That is more than in 86% of compared French towns for footpaths per km², and for woodland less than in 86% of compared French towns. Hiking routes often follow paths and lanes already counted, so the two lengths overlap: don’t add them. Every home in Chilly-Mazarin is within 800 m of a mapped park or wood, as in most French towns.
A named hiking route within 2 km
Other named walk
De la Bièvre à l'Orge6.8 km
Source: © OpenStreetMap contributors (ODbL), extracts of October 25, 2026 (Geofabrik).
When to get out
The best walking months in Chilly-Mazarin: April to September
Météo-France’s 1991–2020 normals at Orly, 6.3 km away, and the daylight at the town’s latitude. Outlined months have long days, highs of 15 to 30 °C and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 8.7 | 10.1 | 11.7 | 13.6 | 15.2 | 16.1 | 15.8 | 14.3 | 12.5 | 10.7 | 9.1 | 8.3 |
| High (°C) | 7 | 9 | 13 | 16 | 20 | 23 | 26 | 26 | 22 | 16 | 11 | 8 |
| Rain (mm) | 47 | 43 | 44 | 45 | 63 | 56 | 53 | 58 | 47 | 53 | 53 | 60 |
February is the driest month (43 mm) and July the warmest (highs of 26 °C). 63 mm of rain falls in May, the wettest month. Frost comes on about 36 nights a year. The climate in Chilly-Mazarin →
Neighbors
Next to Chilly-Mazarin
The nearest towns of 2,500 or more, colored by the share of their land in protected areas.
MorangisLongjumeauChamplanÉpinay-sur-OrgeSavigny-sur-OrgeSaulx-les-ChartreuxChilly-Mazarin
Under 1%1–10 %10–25 %25–50 %50 %+
| Town | Protected | Woodland | Paths (km/km²) |
|---|---|---|---|
| Chilly-Mazarin | 0% | 2.8% | 4.2 |
| Morangis 14,129 · 1.4 km | 0% | 0.8% | 2.1 |
| Longjumeau 21,996 · 1.7 km | 0% | 4.2% | 5.9 |
| Champlan 2,615 · 3 km | 0% | 14% | 2.2 |
| Épinay-sur-Orge 10,722 · 3 km | 0% | 10% | 4.3 |
| Savigny-sur-Orge 37,601 · 3.2 km | 0% | 2.2% | 3.4 |
| Saulx-les-Chartreux 6,733 · 3.3 km | 0.1% | 29% | 4.3 |
Saulx-les-Chartreux is more wooded.
How to read these numbers
What this data can and can’t tell you
- Protected areas. National-park cores, national parks’ outer areas, regional nature parks, nature reserves and Natura 2000 sites, from INPN. A national park’s core is strictly protected; its outer area and a regional park are charters between communes, not bans. Designations overlap, so the total counts each piece of land once.
- Woodland. Forest and woods as OpenStreetMap maps them, private woods included: woods nobody has mapped are missing, and a mapped wood isn’t necessarily open to walkers.
- Footpaths and hiking routes. Footpaths, bridleways, steps and tracks open on foot, then waymarked hiking routes (GR and others) measured apart. A route often follows a path or lane already counted: the two overlap. Paths nobody has mapped are missing.
- Green space nearby. The share of residents (INSEE’s 200 m grid) within 800 m, as the crow flies, of a mapped park, garden or wood edge. It measures nearness, not a way in. Guadeloupe and French Guiana have no grid: their pages say whether the town center is within 800 m.
- The coast. The straight-line distance from the town center to OpenStreetMap’s coastline, which follows the tide line into estuaries. A commune is on the coast when the coastline crosses its boundary.
- No grade yet. U.S. and UK towns have an Outdoors Grade; French towns don’t yet. Each figure is set beside the median of compared communes (those with an overall grade) in the département and in France, each figure its own median.
Questions about the outdoors in Chilly-Mazarin
Is Chilly-Mazarin in a national or regional nature park?
No. The nearest protected area is Bassin de la Bièvre nature reserve, 5.3 km from the town center.
Are there good walks in Chilly-Mazarin?
OpenStreetMap maps 24 km of footpaths and tracks open on foot in the commune, 4.2 km per km² (the median compared town: 1.7 km per km²).
How much of Chilly-Mazarin is woodland?
2.8% of the commune is mapped woodland, private woods included; the median compared French town has 13%.
Is Chilly-Mazarin near the sea?
No: the coast is 163 km from the town center, as the crow flies.
When is the best time for walking in Chilly-Mazarin?
April to September: long days, mild highs and little rain, from Météo-France’s 1991–2020 normals at the nearest suitable station.
Why is there no Outdoors Grade for French towns?
TownRatings grades the outdoors in the U.S. and the UK; the French figures are new and not graded yet. This page sets each one beside the median compared French town instead.
Sources: INPN / PatriNat (protected areas 2026, Natura 2000 2024) · © OpenStreetMap contributors, ODbL (paths, hiking routes, woods, coast, gardens) · INSEE, Filosofi 2021 200 m grid (residents) · IGN Admin Express (boundaries) · Météo-France normals 1991–2020 · 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.