One simple method to determine if a property in Bernalillo or Sandoval County is located within a Public Improvement District (PID) is to use the map overlay in Flexmls. 

When on a map search, select ‘Overlays,’ then select ‘Public Improvement Districts.’  The PID’s will be shaded gray, along with the PID name (Cabezon, Ventana West, Mesa Del Sol, etc.).