Oak Cliff is a neighborhood of Dallas, Texas, that was formerly a separate town in Dallas County; Dallas annexed Oak Cliff in 1901. It has since retained a distinct neighborhood identity as one of Dallas' older established neighborhoods. Oak Cliff has turn-of-the-20th century and mid-20th century housing, many parks, and is near the central business district of downtown Dallas. The boundaries of Oak Cliff are roughly Interstate 30 on the north, Loop 12 on the west, Interstate 35 on the east, the Trinity River on the northeast and Interstate 20 on the south.