Virginia » Fairfax County
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| Fairfax County | |
| The County of Fairfax is a county in the Commonwealth of Virginia. With a population of 1,150,309 as of the 2020 census, it is the most populous county in Virginia. The county seat is Fairfax; however, because it is an independent city under Virginia law, the city of Fairfax is not part of the county. | |
