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 Dallas area counties:

- Collin County (#3 in Texas, Closing Costs Index 85.19)

- Denton County (#6 in Texas, Closing Costs Index 83.10)

- Rockwall County (#9 in Texas, Closing Costs Index 82.30)

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 Texas, check out the table and infographic below: