Closing costs are a crucial aspect of buying a home. In its sixth annual study, financial technology company SmartAsset shows where closing costs are lowest by measuring closing costs as a percentage of median home value at the county level.

Here is a breakdown of some of the top-ranking Pittsburgh area counties:

- Mercer County (#4 in Pennsylvania, 47.68 Closing Costs Index)

- Butler County (#8 in Pennsylvania, 43.65 Closing Costs Index)

Additional information on the study, including the full methodology, results and interactive map can be found here.

For a more detailed look at the top counties in Pennsylvania, check out the table and infographic below: