Petit-Mars (Petit-Mars)
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44390
- Coordinates: 47° 23' 39" N, 1° 27' 18" E
- GPS tracks (wikiloc): [Link]
- Area: 25.97 sq km
- Population: 3608
- Web site: http://www.petitmars.fr
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1065286
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03nwcrp]
- Freebase ID: [/m/03nwcrp]
- GeoNames ID: Alt: [2987658]
- GeoNames ID: Alt: [2987658]
- SIREN number: [214401226]
- SIREN number: [214401226]
- BnF ID: [152602914]
- BnF ID: [152602914]
- Pleiades ID: [138512]
- Pleiades ID: [138512]
- INSEE municipality code: 44122
- INSEE municipality code: 44122
Shares border with regions:

Saint-Mars-du-Désert
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44850
- Coordinates: 47° 21' 59" N, 1° 24' 21" E
- GPS tracks (wikiloc): [Link]
- Area: 30.46 sq km
- Population: 4721
- Web site: [Link]

Les Touches
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44390
- Coordinates: 47° 26' 31" N, 1° 25' 50" E
- GPS tracks (wikiloc): [Link]
- Area: 35.15 sq km
- Population: 2463
- Web site: [Link]


Ligné
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44850
- Coordinates: 47° 24' 42" N, 1° 22' 38" E
- GPS tracks (wikiloc): [Link]
- Area: 45.41 sq km
- Population: 5088
- Web site: [Link]


Nort-sur-Erdre
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44390
- Coordinates: 47° 26' 22" N, 1° 29' 54" E
- GPS tracks (wikiloc): [Link]
- Area: 66.56 sq km
- Population: 8539
- Web site: [Link]


Sucé-sur-Erdre
- commune in Loire-Atlantique, France
- Country:
- Postal Code: 44240
- Coordinates: 47° 20' 0" N, 1° 32' 0" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 14 м m
- Area: 41.33 sq km
- Population: 6903
- Web site: [Link]