Mailly-Champagne (Mailly-Champagne)
- commune in Marne, France
- Country:
- Postal Code: 51500
- Coordinates: 49° 9' 21" N, 4° 6' 44" E
- GPS tracks (wikiloc): [Link]
- Area: 10.06 sq km
- Population: 680
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1103648
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/01wc0c]
- GeoNames ID: Alt: [6435878]
- SIREN number: [215103144]
- BnF ID: [152629410]
- INSEE municipality code: 51338
Shares border with regions:

Puisieulx
- commune in Marne, France
- Country:
- Postal Code: 51500
- Coordinates: 49° 11' 35" N, 4° 6' 48" E
- GPS tracks (wikiloc): [Link]
- Area: 9.07 sq km
- Population: 411


Verzenay
- commune in Marne, France
- Country:
- Postal Code: 51360
- Coordinates: 49° 9' 31" N, 4° 8' 43" E
- GPS tracks (wikiloc): [Link]
- Area: 10.62 sq km
- Population: 1051
- Web site: [Link]

Ludes
- commune in Marne, France
- Country:
- Postal Code: 51500
- Coordinates: 49° 9' 17" N, 4° 4' 44" E
- GPS tracks (wikiloc): [Link]
- Area: 12.22 sq km
- Population: 630
- Web site: [Link]

Sillery
- commune in Marne, France
- Country:
- Postal Code: 51500
- Coordinates: 49° 11' 53" N, 4° 7' 56" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 88 м m
- Area: 9.2 sq km
- Population: 1748
- Web site: [Link]


Louvois
- former commune in Marne, France
- Country:
- Postal Code: 51150
- Coordinates: 49° 6' 4" N, 4° 6' 57" E
- GPS tracks (wikiloc): [Link]
- Area: 12.17 sq km
- Population: 322