If there is such a list I've never seen it, but it is a good idea - maybe you can compile one when you are walking the Camino?
As you know many albergues are in towns (with no grounds) and some, like the one I worked in has a huge playground in front but does not allow camping.
In my book I list all the Camp Sites on the
Camino Frances and a few villages where wild camping is allowed:
Wild camping is legal in Spain but with some restrictions. You are not allowed to camp:
• In any urban area (these areas are prohibited for military or tourist reasons)
• Within 1 km of an official campsite
• On tourist beaches
• In the ‘Parques Naturales’
If you are sensible and ‘wild camp’ close to these areas have some sensitivity to the rules and you can camp almost anywhere in the countryside. It is illegal, however, to make fires so unless you have a camping stove, rather wait until you get to a café-bar for your daily fix of café-con-leche
RABANAL DEL CAMINO:
Wild camping possible in a field at Rabanal or the open area just beyond the village: No facilities
O’CEBREIRO:
Wild camping is possible in field at the back of the village.
SARRIA:
Wild camping possible on the banks of the river – access from Pont Riberio.