Allas-Champagne is a commune in the Charente-Maritime department in the Nouvelle-Aquitaine region of southwestern France.

Allas-Champagne is located in the south of the department of Charente-Maritime in the former province of Saintonge some 10 km north-east of Jonzac and 5 km south-east of Archiac. It can be accessed by road D250 which comes east from the D699 linking Jonzac and Archiac through the village and continuing east as the D250E1 to Brie-sous-Archiac. There is also the D149 which comes from Archiac in the north passing through the heart of the commune and the village and continuing south to join the D2 road west of Meux. Apart from the village there are three hamlets in the commune: Godais, Chez Gondre, and La Valade. The commune consists entirely of farmland with the exception of a few very small patches of forest in the south.

The Trefle river flows west through the south of the commune forming part of the southern border before continuing westwards to join the Seugne near Saint-Grégoire-d'Ardennes. A small unnamed stream also rises in the north of the commune and flows west then south to join the Trefle.

This list is incomplete; you can help by adding missing items. (April 2021)

List of Successive Mayors

From	To	Name	Party	Position
2001	2014	Yves Guénoux	SE	Sales Executive
2014	2026	Bernard Maindron

The inhabitants of the commune are known as Allasiens or Allasiennes in French.

Historical population

Year	Pop.	±% p.a.
1968	201	—
1975	200	−0.07%
1982	213	+0.90%
1990	207	−0.36%
1999	184	−1.30%
2007	229	+2.77%
2012	272	+3.50%
2017	264	−0.60%
Source: INSEE

The population of the commune is younger than the departmental average.

Percentage Distribution of Age Groups in Allas-Champagne and Charente-Maritime Department in 2017

	Allas-Champagne		Charente-Maritime
Age Range	Men	Women	Men	Women
0 to 14 Years	20.0	16.9	16.3	14.3
15 to 29 Years	7.7	14.5	15.4	13.1
30 to 44 Years	28.5	17.7	16.7	16.1
45 to 59 Years	21.5	20.2	20.2	19.9
60 to 74 Years	15.4	17.7	21.1	22.0
75 to 89 Years	6.2	8.1	9.4	12.3
90 Years+	0.8	4.8	1.0	2.4

Source: INSEE

A public kindergarten is located in the centre of the village.

• The Church of Saint-Didier from the 12th century.

• 
  The Church of Saint Didier
• 
  Church of Saint Didier Interior
• 
  Stained Glass in the Church
• 
  Stained Glass in the Church

• Jonzac (9 km)
• Fontaines-d'Ozillac (halt) (9.9 km)
• Clion-sur-Seugne (halt) (13.1 km)
• Pons (20 km)
• Montendre (21.6 km)

• Cognac (21 km)
• Angoulême (52.1 km)
• Aerodrome of Royan-Médis (52.7 km)

• Communes of the Charente-Maritime department

• Allas-Champagne on the National Geographic Institute website (in French)
• Allas-Champagne on Géoportail, National Geographic Institute (IGN) website (in French)
• Allas-Champagne on the 1750 Cassini Map