LDS Cosmology is very complex and confusing even to members! 
 
To answers simply all people that have never seen God, Jesus Christ, the Holy Ghost, or an Angel of God and rejected God's divinity go to a Kingdom of Heaven depending on there faith and works no matter how bad they were in life all will be rewarded with there proper kingdom in heaven unless they reject God with a physical knowledge of his existence (like Satan) did.  
 
To explain the three kingdoms takes a lot of time so I will give a brief description and please not that all things are not known about the afterlife and will not be known in this life.  
 
Celestial Kingdom: Is made up of three degrees of glory. Only those who accept Christ and have the ordinances of salvation performed can enter this kingdom or Glory. The highest degree of the Celestial Kingdom is exaltation we become a god and can obtain the ability to have spirit children of our own.  
 
Terrestrial Kingdom: Those who never accepted Christ but lived good lives inherit this kingdom of glory. It is a lesser glory than Celestial and because of that these people can never dwell in the presence of the Father only the Son and Holy Ghost. Until the day of Judgement all translated beings (like Enoch, Elijah, Moses) reside here. 
 
Telestial Kingdom: Is where those who never accepted Christ and lived immoral or bad lives reside. They live in a lesser glory than the previous two kingdoms neither the Father nor the Son can visit here only the Holy Ghost.  
 
Outer Darkness: This is a place of no glory outside of Heaven. If is a place of wailing and gnashing of teeth. Satan and his angels as well as any who committed an unforgivable sin. Like rejecting God when visited by a heavenly messenger or committing murder after covenanting not to when you enter the Church of Jesus Christ of Latter-day Saints.  
 
This place is overwhelmingly filled with the fallen host of Satan's rebellion against God. Very very few people who lived on Earth will inherit this eternal spiritual death.  
 
Hope this answered your questions!