To get the sheriffs dept. in both counties unfortunately you will need an expensive digital scanner. They are on what is called the "Palmetto800" radio system. Richland County SC is on the same system. I have the Uniden BCD996XT. It works great but over price as all digital scanners are in my opinion. Here is a link to RadioReference for frequencies in SC.
Greenville County, South Carolina (SC) Scanner Frequencies and Radio Frequency Reference After looking at the frequencies in your area click on their home page for more information on this hobby. If you are serious about getting a digital scanner, give me a PM or post here and I will explain further on what you need to do. It is a fun hobby but can be a little overwhelming to start with. For example here is a link to a good operators manual on my scanner. Easier to Read BCD996XT Digital Scanner Manual
Greenville County, South Carolina (SC) Scanner Frequencies and Radio Frequency Reference After looking at the frequencies in your area click on their home page for more information on this hobby. If you are serious about getting a digital scanner, give me a PM or post here and I will explain further on what you need to do. It is a fun hobby but can be a little overwhelming to start with. For example here is a link to a good operators manual on my scanner. Easier to Read BCD996XT Digital Scanner Manual