Datasets

2 datasets

U.S Department of Transportation

Metadata for Other Populated Areas

Metadata for Other Populated Areas (OPAs). These are considered High Consequence Areas (HCAs) as defined in 49 CFR § 195.450. The OPA data is derived from the U.S. Census Bureau’s TIGER Census-Designated Places (CDP)…

Updated Oct 25, 2026

Loudoun County

Loudoun Town Boundaries

More Metadata The Commonwealth of Virginia grants certain powers to incorporated municipalities. There are seven towns in the County. Washington Dulles International Airport is also included due to its jurisdictional…

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Updated Oct 10, 2026