I think everyone is right, that there should be a lot of people...but you may also need to move outside of your comfort zone if you are normally a shy, quiet person. Walk up to a person or group in the albergue and introduce yourself (I know, easier said than done for some), and ask to join them for dinner, or on the walk the next day. I cannot imagine anyone saying no. If this is normally not something you feel comfortable doing, maybe practice a little role playing with friends and family before you leave. Strike up a conversation while waiting to check in, or settling into your bunk, or even washing clothes or in the bathroom. I don't know if you are outgoing, or a bit reserved, so if you are more on the quiet side, practice striking up conversations just like breaking in your footwear. A chaplain friend of mine once told me he was very shy, so would rehearse "spontaneous" phrases before going to get-togethers. whatever works.
Buen Camino!