|Intercommunality||Communauté de communes de la Vallée de la Suippe|
|Elevation||78 m (256 ft) avg.|
|Land area1||12.39 km2 (4.78 sq mi)|
|- Density||60 /km2 (160 /sq mi)|
|INSEE/Postal code||51299/ 51110|
|1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.|
|2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.|
The commune is traversed by the Suippe river.
The relay station
The royal relay station of Ysle was founded mid-17th century, the postal road from Paris to Sedan, started in 1654, had a mandatory halt there; located between the halts of Reims and Rethel-Mazarin, it was an important link of the road to Sedan, a then predominant town of the Ardennes. At that time, the Galand family settled in Ysle and initiated a postmaster dynasty.
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