HydroBASINS lev08 watershed · #2080464540
Bassin de l'Essonne
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Essonne, Eure-et-Loir, Loiret, Seine-et-Marne
Sub-basin area
1 958km²
Upstream area
1 958,1km²
Discharge
11,85m³/s
Mean elev.
119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 918.1 km²46.7% of basin
- 860.9 km²43.8% of basin
- 93.8 km²4.8% of basin
- 91.1 km²4.6% of basin
209 communes (GADM L5)Available for FRA, RWA
- Chilleurs-aux-Bois47.43 km²91% commune
- Étampes44.87 km²96% commune
- Pithiviers-le-Vieil34.36 km²100% commune
- Guigneville31.58 km²100% commune
- Morigny-Champigny30.62 km²100% commune
- Chalo-Saint-Mars29.31 km²100% commune
- Neuville-aux-Bois28.31 km²89% commune
- Autruy-sur-Juine27.36 km²100% commune
- Gommerville27.28 km²100% commune
- Méréville27.18 km²100% commune
- Yèvre-la-Ville27.06 km²100% commune
- Angerville25.89 km²100% commune
- Greneville-en-Beauce22.85 km²100% commune
- Maisse21.74 km²100% commune
- Outarville21.64 km²45% commune
- Sermaises21.53 km²100% commune
- Bouville21.24 km²100% commune
- Puiseaux20.31 km²100% commune
- Nibelle19.33 km²70% commune
- Buthiers19.21 km²99% commune
- Césarville-Dossainville19.13 km²100% commune
- Estouy18.95 km²100% commune
- Valpuiseaux18.93 km²100% commune
- Charmont-en-Beauce18.80 km²100% commune
- Dadonville18.12 km²100% commune
- Malesherbes18.03 km²100% commune
- Courcy-aux-Loges17.82 km²85% commune
- Engenville17.73 km²100% commune
- Cerny17.48 km²100% commune
- Guillerval16.80 km²100% commune
- Manchecourt16.33 km²100% commune
- Bouilly-en-Gâtinais16.05 km²100% commune
- Aulnay-la-Rivière16.04 km²100% commune
- Vert-le-Grand16.00 km²100% commune
- Boigneville15.96 km²100% commune
- Boutigny-sur-Essonne15.71 km²96% commune
- Attray15.54 km²91% commune
- Buno-Bonnevaux15.53 km²97% commune
- Chambon-la-Forêt15.53 km²90% commune
- Orveau-Bellesauve15.47 km²100% commune
- Jouy-en-Pithiverais15.43 km²100% commune
- Abbéville-la-Rivière14.92 km²100% commune
- Vrigny14.69 km²93% commune
- Étréchy14.39 km²100% commune
- Saclas13.70 km²100% commune
- Boiscommun13.63 km²86% commune
- Audeville13.14 km²100% commune
- Gironville-sur-Essonne13.03 km²100% commune
- Auvers-Saint-Georges12.96 km²100% commune
- Bazoches-les-Gallerandes12.54 km²34% commune
- Erceville12.46 km²100% commune
- Boissy-la-Rivière12.42 km²100% commune
- Coudray12.38 km²100% commune
- Ramoulu12.16 km²100% commune
- Itteville12.13 km²100% commune
- Nanteau-sur-Essonne12.11 km²97% commune
- Pussay12.00 km²100% commune
- Saint-Vrain11.96 km²100% commune
- Mareau-aux-Bois11.93 km²100% commune
- Andonville11.90 km²100% commune
- Rouvray-Saint-Denis11.86 km²61% commune
- Nancray-sur-Rimarde11.65 km²100% commune
- Escrennes11.41 km²100% commune
- Ballancourt-sur-Essonne11.24 km²100% commune
- Morville-en-Beauce11.15 km²100% commune
- Marsainvilliers11.12 km²100% commune
- Puiselet-le-Marais11.07 km²100% commune
- Saint-Escobille10.99 km²90% commune
- Chalou-Moulineux10.69 km²100% commune
- Janville-sur-Juine10.39 km²100% commune
- Mérobert10.36 km²100% commune
- Mainvilliers10.31 km²100% commune
- Aufferville10.20 km²57% commune
- Ormoy-la-Rivière10.15 km²100% commune
- Mespuits10.08 km²100% commune
- Rouvres-Saint-Jean9.91 km²100% commune
- Givraines9.87 km²91% commune
- D'Huison-Longueville9.76 km²100% commune
- La Neuville-sur-Essonne9.54 km²100% commune
- Oysonville9.32 km²100% commune
- Plessis-Saint-Benoist9.30 km²100% commune
- Saint-Cyr-la-Rivière9.18 km²100% commune
- Lisses9.13 km²83% commune
- Guigneville-sur-Essonne9.11 km²100% commune
- Thignonville9.05 km²100% commune
- Échilleuses8.85 km²72% commune
- Santeau8.80 km²100% commune
- Nangeville8.60 km²100% commune
- Brières-les-Scellés8.60 km²98% commune
- Boynes8.56 km²56% commune
- Vayres-sur-Essonne8.51 km²100% commune
- Brouy8.48 km²100% commune
- Baulne8.43 km²100% commune
- Congerville-Thionville8.39 km²100% commune
- Mennecy8.37 km²76% commune
- Arville8.25 km²74% commune
- Briarres-sur-Essonne8.11 km²100% commune
- Blandy7.98 km²100% commune
- Monnerville7.97 km²100% commune
- Leudeville7.80 km²100% commune
- Avrainville7.80 km²82% commune
- Lardy7.74 km²100% commune
- Champmotteux7.64 km²100% commune
- Orville7.62 km²100% commune
- Arrancourt7.47 km²100% commune
- Ichy7.44 km²100% commune
- Fromont7.33 km²68% commune
- Bouzonville-aux-Bois7.32 km²100% commune
- Cheptainville7.27 km²100% commune
- Bouray-sur-Juine7.24 km²100% commune
- Vert-le-Petit7.18 km²100% commune
- Intréville7.13 km²82% commune
- Roinvilliers7.07 km²100% commune
- Pithiviers7.04 km²100% commune
- Villeneuve-sur-Auvers6.99 km²100% commune
- Boutervilliers6.98 km²100% commune
- Ascoux6.86 km²100% commune
- Écharcon6.82 km²100% commune
- Fontenay-le-Vicomte6.81 km²100% commune
- Saint-Hilaire6.78 km²100% commune
- Estouches6.60 km²100% commune
- Vierville6.46 km²97% commune
- Ondreville-sur-Essonne6.42 km²100% commune
- Pannecières6.28 km²100% commune
- Bondaroy6.27 km²100% commune
- Laas6.25 km²100% commune
- Bondoufle6.24 km²93% commune
- Courcelles6.24 km²100% commune
- Bromeilles6.24 km²43% commune
- Boulancourt6.23 km²100% commune
- Barmainville5.98 km²96% commune
- Chamarande5.97 km²100% commune
- Marolles-en-Beauce5.86 km²100% commune
- Boisseaux5.83 km²83% commune
- Rumont5.81 km²89% commune
- Courdimanche-sur-Essonne5.55 km²100% commune
- Orlu5.53 km²100% commune
- Mondeville5.45 km²81% commune
- Obsonville5.38 km²78% commune
- La Forêt-Sainte-Croix5.30 km²100% commune
- Corbeil-Essonnes5.13 km²47% commune
- Chevannes5.12 km²50% commune
- Prunay-sur-Essonne5.01 km²100% commune
- Montigny4.95 km²100% commune
- Burcy4.90 km²71% commune
- Intville-la-Guétard4.89 km²100% commune
- Desmonts4.78 km²100% commune
- Boissy-le-Cutté4.65 km²100% commune
- La Ferté-Alais4.35 km²100% commune
- Loury4.33 km²12% commune
- Châtillon-le-Roi4.32 km²100% commune
- Le Plessis-Pâté4.31 km²56% commune
- Orveau4.24 km²100% commune
- Bois-Herpin4.16 km²100% commune
- Marolles-en-Hurepoix4.15 km²63% commune
- Ardelu4.10 km²100% commune
- Grangermont4.09 km²100% commune
- Châtenay4.06 km²39% commune
- Villabé4.06 km²100% commune
- Milly-la-Forêt4.05 km²12% commune
- Labrosse4.04 km²100% commune
- Léouville3.99 km²100% commune
- Augerville-la-Rivière3.95 km²100% commune
- Fontaine-la-Rivière3.67 km²100% commune
- Authon-la-Plaine3.61 km²35% commune
- Chauffour-lès-Étréchy3.60 km²79% commune
- Torfou3.33 km²100% commune
- Bougy-lez-Neuville2.93 km²17% commune
- Videlles2.89 km²32% commune
- Sainville2.70 km²12% commune
- Baudreville2.66 km²20% commune
- Garancières-en-Beauce2.52 km²22% commune
- Tousson2.50 km²18% commune
- Champcueil2.46 km²15% commune
- Batilly-en-Gâtinais2.38 km²24% commune
- Dimancheville2.31 km²100% commune
- Boësses2.15 km²16% commune
- Fleury-Mérogis2.08 km²33% commune
- Guibeville1.96 km²80% commune
- Crottes-en-Pithiverais1.94 km²14% commune
- Ormoy1.87 km²100% commune
- Richarville1.76 km²16% commune
- Mauchamps1.45 km²46% commune
- Boissy-aux-Cailles1.42 km²9% commune
- Villeconin1.38 km²10% commune
- Garentreville1.33 km²21% commune
- Saint-Michel1.30 km²24% commune
- Boissy-sous-Saint-Yon1.22 km²15% commune
- Courcouronnes1.05 km²24% commune
- Gironville0.97 km²7% commune
- Léthuin0.82 km²12% commune
- Brétigny-sur-Orge0.79 km²5% commune
- La Forêt-le-Roi0.74 km²9% commune
- Boissy-le-Sec0.74 km²4% commune
- Le Coudray-Montceaux0.72 km²6% commune
- Mérouville0.56 km²6% commune
- Maisoncelles-en-Gâtinais0.54 km²6% commune
- Montbarrois0.46 km²8% commune
- Barville-en-Gâtinais0.39 km²4% commune
- Sainte-Geneviève-des-Bois0.31 km²3% commune
- La Norville0.20 km²5% commune
- Saint-Sulpice-de-Favières0.19 km²4% commune
- Oinville-Saint-Liphard0.14 km²1% commune
- Amponville0.08 km²1% commune
- Oncy-sur-École0.08 km²1% commune
- Moigny-sur-École0.06 km²1% commune
- Mondreville0.06 km²0% commune
- Montliard0.02 km²0% commune
- Villereau0.01 km²0% commune
24 intersecting protected areas
Gâtinais Français
IUCN VRegional Nature Park
356.17 km² overlap
Forêt d'Orléans
IUCN Not ReportedSpecial Protection Area (Birds Directive)
38.85 km² overlap
Haute vallée de l'Essonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.71 km² overlap
Vallée de l'Essonne et vallons voisins
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.35 km² overlap
Marais d'Itteville et de Fontenay-le-Vicomte
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.23 km² overlap
Marais des basses vallées de la Juine et de l'Essonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.97 km² overlap
Forêt d'Orléans et périphérie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.36 km² overlap
Pelouses calcaires du gâtinais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.10 km² overlap
Biotope Protection Order
2.96 km² overlap
15 more protected areassorted by overlap area
Pelouses calcaires de la haute vallée de la Juine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.03 km² overlap
Le Grand Marais
IUCN IVBiotope Protection Order
0.83 km² overlap
Marais D\'Orville
IUCN IVBiotope Protection Order
0.50 km² overlap
haute vallee de la juine
IUCN IVLand acquired by a regional conservatory of natural areas
0.34 km² overlap
pelouses du gatinais
IUCN IVLand acquired by a regional conservatory of natural areas
0.28 km² overlap
National Nature Reserve
0.27 km² overlap
vallees de solvins (les)
IUCN IVLand acquired by a regional conservatory of natural areas
0.24 km² overlap
La Roche Cassée
IUCN IVBiotope Protection Order
0.22 km² overlap
Land acquired by a regional conservatory of natural areas
0.02 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
Land acquired by a regional conservatory of natural areas
0.00 km² overlap
butte pelee
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Protected perimeter around a national nature reserve
0.00 km² overlap
orpheline8
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Champignonnières d'Etampes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 249 distinct species · 1 291 680 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de l'Essonne : 29 espèces reliées par 133 interactions GloBI sur 5 types (connectance 17.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,8°C
Annual rain
645mm
Moisture idx (CMI)
-0,22
Runoff
194mm/an
PET
828mm
AET
543mm
Mean slope
1,1°
Water table
100cm
Forest
3%
Crops
60%
Urban
7%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)