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Ancien local du PCF de PoissyPhoto: Silanoc · CC BY-SA 4.0
12%woodland
Outdoors in Poissy · protected areas, woods and footpaths

Almost every home in Poissy is within 800 m of a park or wood

38 km of footpaths cross Poissy (3 km per km²). No protected area reaches Poissy; the nearest, Vexin Français Regional Nature Park, is 8.6 km from the town center. Mapped woodland covers 12% of Poissy. 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: Vexin Français Regional Nature Park, 8.6 km
Woodland
12%
of the land, mapped on OpenStreetMap
Compared town: 13%
Footpaths
38 km
3 km per km²
Compared town: 1.7 km per km²
Hiking routes
0.1 km
waymarked, GR and others
Compared town: 0.3 km per km²
Parks & woods
14
named, in or within 400 m of the commune
First: Forêt domaniale de Saint-Germain-en-Laye

Throughout this page, the Yvelines median and the France median are the median of compared communes (those with an overall grade), each figure its own median.

Against French towns

How Poissy 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
NoneMedian 0.1%100
22out of 100
Woodland12%Share of the land mapped as forest or woods on OpenStreetMap
Median 13%0100
47out of 100
Footpaths3 km per km²Km of mapped footpath and track open on foot, per km² of the commune
Median 1.7 km per km²08+
73out of 100
Hiking routes0 km per km²Km of waymarked hiking routes (GR and others), per km² of the commune
NoneMedian 0.3 km per km²3+
24out of 100

Percentiles among compared French towns; ties count half.

Towns its size

Poissy has the 13th fewest footpaths per km² of 41 towns its size

The 40 compared French towns nearest in population (38,324 to 44,002 residents), by km of footpath per km². Hover for each one’s protected land and woods; click for its page.

Poissy 3
PuteauxSaint-Benoît
01020 km per km²

From Puteaux (18.9 km per km²) to Saint-Benoît (0.4 km per km²).

Every town in the comparison
TownPaths (km/km²)WoodlandProtectedCoast
1Puteaux Hauts-de-Seine18.91.5%0%142 km
2Paris 6e Paris8.41.7%0%149 km
3Bron Rhône7.16.1%0%251 km
4Villepinte Seine-Saint-Denis715%16%149 km
5Marseille 6e Bouches-du-Rhône6.81.2%0%1 km
6Neuilly-sur-Marne Seine-Saint-Denis6.69.5%11%157 km
7Rezé Loire-Atlantique6.67%3.6%37 km
8Arras Pas-de-Calais6.53.4%0%78 km
9Colomiers Haute-Garonne6.45.5%0%155 km
10Stains Seine-Saint-Denis6.36.9%14%142 km
11Boulogne-sur-Mer Pas-de-Calais5.81.3%0%On it
12Chartres Eure-et-Loir5.52.4%0%138 km
13Bagnolet Seine-Saint-Denis5.51.4%3.6%151 km
14Valenciennes Nord5.26.6%0.2%105 km
15Caluire-et-Cuire Rhône5.19.1%0.1%255 km
16Gagny Seine-Saint-Denis4.39.6%0.5%155 km
17Pontault-Combault Seine-et-Marne4.127%0%166 km
18Angoulême Charente4.114%3.6%75 km
19Anglet Pyrénées-Atlantiques418%4.5%On it
20Garges-lès-Gonesse Val-d'Oise48.7%0%141 km
21Mantes-la-Jolie Yvelines3.712%7.1%109 km
22Bourg-en-Bresse Ain3.516%0%307 km
23Douai Nord3.55.3%1.1%88 km
24Marcq-en-Barœul Nord3.43.7%0%60 km
25Compiègne Oise3.474%76%119 km
26La Ciotat Bouches-du-Rhône3.420%27%On it
27Wattrelos Nord3.13.3%0%60 km
28Tremblay-en-France Seine-Saint-Denis33.9%0%151 km
29Poissy Yvelines312%0%131 km
30Le Cannet Alpes-Maritimes2.89.9%0%2.4 km
31Thionville Moselle2.733%0%307 km
32Joué-lès-Tours Indre-et-Loire2.515%0%179 km
33Villenave-d'Ornon Gironde2.47%14%26 km
34Gap Hautes-Alpes2.328%33%133 km
35Châteauroux Indre2.33.8%4.8%224 km
36Châlons-en-Champagne Marne2.20.7%0%237 km
37Montélimar Drôme1.88%0.9%123 km
38Draguignan Var1.529%0%26 km
39Castres Tarn1.19.7%1.2%90 km
40Saint-Joseph Réunion0.650%85%On it
41Saint-Benoît Réunion0.459%78%On it
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.

12345678
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 Poissy

Named parks, gardens and woods in the commune or within 400 m, the biggest and best-pathed first: Forêt domaniale de Saint-Germain-en-Laye leads, at 3,400 ha. Directions go to a point inside.

First pick

Forêt domaniale de Saint-Germain-en-Laye

Wood or forest
3,400 ha258.4 km of path
57 h 25 minto walk all 258.4 km of path
7.5 km north-eastfrom the center
Avenue de la MuetteRoute de BrancasRoute du Maître Particulier+5 paths
Directionsto a point inside

Forêt de Marly-le-Roi

Wood or forest
2,109 ha194.8 km of path
43 h 15 minto walk all 194.8 km of path
6.3 km southfrom the center
Route HardouinRoute de la Grille MadameRoute Royale+5 paths
Directionsto a point inside

Parc du Peuple de l'herbe

Park or garden · 30 m outside the commune
116 ha13.3 km of path
3 hto walk all 13.3 km of path
1.4 km north-westfrom the center
Chemin de la Ferme des GrésillonsChemin de la Prairie
Directionsto a point inside

Forêt Départementale des Tailles d'Herbelay

Wood or forest · 10 m outside the commune
56 ha3.4 km of path
45 minto walk all 3.4 km of path
3.5 km south-westfrom the center
Directionsto a point inside

Parc forestier de la Charmille

Park or garden
14 ha4.6 km of path
1 hto walk all 4.6 km of path
1.6 km eastfrom the center
Route Vieille de PoissyParcours Sportif du Parc de la CharmilleRoute de la Justice
Directionsto a point inside

Parc Meissonier

Park or garden
14 ha4.1 km of path
55 minto walk all 4.1 km of path
0.8 km westfrom the center
Directionsto a point inside

Parc de Villard

Park or garden
9.6 ha0.6 km of path
5 minto walk all 0.6 km of path
1.3 km westfrom the center
Directionsto a point inside

Forêt Communale d'Aigremont

Wood or forest
26 ha1.3 km of path
20 minto walk all 1.3 km of path
3.6 km south-westfrom the center
Vieux Chemin de la Cote des Grès
Directionsto a point inside
All 14 named parks, gardens and woods
Forêt domaniale de Saint-Germain-en-LayeWood or forest · 3,400 ha · 258.4 km of path
Directions
Forêt de Marly-le-RoiWood or forest · 2,109 ha · 194.8 km of path
Directions
Parc du Peuple de l'herbePark or garden · 116 ha · 13.3 km of path · just outside
Directions
Forêt Départementale des Tailles d'HerbelayWood or forest · 56 ha · 3.4 km of path · just outside
Directions
Parc forestier de la CharmillePark or garden · 14 ha · 4.6 km of path
Directions
Parc MeissonierPark or garden · 14 ha · 4.1 km of path
Directions
Parc de VillardPark or garden · 9.6 ha · 0.6 km of path
Directions
Forêt Communale d'AigremontWood or forest · 26 ha · 1.3 km of path
Directions
Plaine de l'EnfancePark or garden · 5 ha · 1.2 km of path · just outside
Directions
Les CommunauxWood or forest · 15 ha · 1.2 km of path · just outside
Directions
Île Saint-LouisWood or forest · 4.8 ha
Directions
Square LabbéPark or garden · 0.6 ha · 0.2 km of path
Directions
Square Léon-DeliancePark or garden · 0.3 ha · 0.2 km of path
Directions
Square GutembergPark or garden · 0.3 ha · 0.1 km of path
Directions

Source: © OpenStreetMap contributors (ODbL): named parks, gardens and woods; sizes are the whole site.

Protected areas

Vexin Français Regional Nature Park is the nearest protected area, 8.6 km away

The protected areas reaching the commune, and the nearest: national parks, regional nature parks, nature reserves and Natura 2000 sites.

Regional nature park

Vexin Français Regional Nature Park

8.6 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

38 km of footpaths cross Poissy

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
38 km
3 km per km²
Hiking routes
0.1 km
waymarked: 0 km per km²
Woodland
12%
about 1.6 km² of mapped woods

Km per km² of the commune · mapped on OpenStreetMap

PoissyYvelines medianFrance median
Footpaths3
Hiking routes0
02.55 km per km²

Share of the land · mapped woods and forest

PoissyYvelines medianFrance median
Woodland12%
0%50%100%

That is more than in 73% of compared French towns for footpaths per km², and for woodland less than in 53% 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 Poissy is within 800 m of a mapped park or wood, as in most French towns.

4 named hiking routes within 2 km

GR (long-distance)PR (local walk)Other named walk
GR 263 km
PR 442.9 km
La Seine impressionniste7.2 km
Sentier de l’Etoile de Beaumont1.8 km

GR 26 passes within 2 km of Poissy.

Source: © OpenStreetMap contributors (ODbL), extracts of October 25, 2026 (Geofabrik).

When to get out

The best walking months in Poissy: April to September

Météo-France’s 1991–2020 normals at Maule, 14 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.

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)8.710.111.713.615.316.215.814.412.510.79.18.3
High (°C)891317202426262217118
Rain (mm)575051476556535346656173

September is the driest month (46 mm) and July the warmest (highs of 26 °C). 73 mm of rain falls in December, the wettest month. Frost comes on about 52 nights a year. The climate in Poissy →

Neighbors

Next to Poissy

The nearest towns of 2,500 or more, colored by the share of their land in protected areas.

Carrières-sous-PoissyChambourcyVillennes-sur-SeineAchèresSaint-Germain-en-LayeOrgevalPoissy
Under 1%1–10 %10–25 %25–50 %50 %+
TownProtectedWoodlandPaths (km/km²)
Poissy0%12%3
Carrières-sous-Poissy
20,825 · 2 km
0%5.6%5.3
Chambourcy
5,847 · 2.6 km
0%37%4.7
Villennes-sur-Seine
5,952 · 3.6 km
0%17%3.7
Achères
22,241 · 4.2 km
0%3.4%3.7
Saint-Germain-en-Laye
45,931 · 4.4 km
0%68%6.8
Orgeval
7,252 · 5 km
0%27%1.1

Chambourcy, Saint-Germain-en-Laye and Orgeval are 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 Poissy

Is Poissy in a national or regional nature park?

No. The nearest protected area is Vexin Français Regional Nature Park, 8.6 km from the town center.

Are there good walks in Poissy?

OpenStreetMap maps 38 km of footpaths and tracks open on foot in the commune, 3 km per km² (the median compared town: 1.7 km per km²).

How much of Poissy is woodland?

12% of the commune is mapped woodland, private woods included; the median compared French town has 13%.

Is Poissy near the sea?

No: the coast is 131 km from the town center, as the crow flies.

When is the best time for walking in Poissy?

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 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.