Castelnau-d'Auzan (; Gascon: Castèthnau d'Eusan) is a former commune in the Gers department in southwestern France. On 1 January 2016, it was merged into the new commune Castelnau-d'Auzan-Labarrère.
A picturesque little village on the river Gélise on a crossing of roads, east of the city of Condom in the Gers bounding the departments Lot-et-Garonne and the Landes. It benefits of a privileged situation on the fringe the Landes forest in the middle of an agreeable and fertile region. The village lies on the water parting between the Gélise and the Izaute and occupies the emplacement of an ancient castle.
The geographical situation is agreeable: the Atlantic coast on one side and on the other side the ski resorts of the south of France are by car only a distance of 145 km (2 h 15 min).
The name Castelnau d'Auzan means: "Château Neuf in the land of ÃÂauzan". The castle disappeared, but here and there in the village some remains are still visible.
The inhabitants are called Auzanais.
Like in other communes in rural France the canton had a decrease of population. In 1962, the canton had 5938 citizens. In 1999, there were only 4741, which represents a decrease of 20%. This decrease is still continuing.
This phenomenon started, as in many other rural areas during the War of 1914-1918. Many young men did not return home. Lack of manpower changed the once wealthy and healthy pastoral area in a region where the population and wealth both decreased. New immigrants from Spain and Italy compensated partly the loss in population.
After the independence of Algeria, the French farmers and winemakers returning to France were encouraged to settle in the Gers.
All these waves of immigrants now are completely integrated.
Due to the changes in the rural economics the last decade agricultural land and farms were put on the market and sold to newcomers from the north of Europe, looking for an active countryside way of life.
Gradually immigration changed, nowadays retired people from the north European urban areas come to the Gers in search of homes for their retirement.
Castelnau-d'Auzan is surrounded by vineyards, smoothly undulating hills and here and there a nice little village. The setting and ambiance are perfect for promenades by foot or by bicycle, or a little play of golf on the splendid Golf de Guinlet, which is on five minutes distance of the village.
Because of its landscapes the Gers is now and then called the "Tuscany of France". The summers are long and warm; the winters are warm and short. In the neighborhood are numerous old castles, little medieval walled villages, small cities built around castles and "sacred" places, because the Way of St. James of Compostela and the Via Podiensis are going through the Gers and left their traces.
Local associations develop numerous activities which make it possible to share the local passion for: the nature, good walking bicycling routes, traditional skittle and ball games quilles au maillet) and palet gascon; courses Landaises a daring and innocent game with wild cows; old fashioned battue hunting; local feasts; and gastronomy.
The village can easily be reached by car or train. Nearby rail stations are: Mont-de-Marsan (55 km - 1h00m), Agen (65 km - 1h05m) and Auch (70 km - 1h05m).
Three airports are in the neighbourhood: Toulouse (140 km - 2h10m), Bordeaux (150 km -1h50m) and Pau (100 km - 1h40m).