<div id="area">
     <p>Paragraph one</p>
     <p>Paragraph two</p>
     <p>Paragraph three</p>
     <p>Paragraph four</p>
     <p>Paragraph five</p>
     <p>Paragraph six</p>
   </div>

var count = $("#area").find("p").length;
if(count > 1) {

}