Pine Bluff is the largest city and county seat of Jefferson County, Arkansas, United States. It is also the principal city of the Pine Bluff Metropolitan Statistical Area and part of the Little Rock-North Little Rock-Pine Bluff, Arkansas Combined Statistical Area. According to 2006 Census Bureau estimates, the population of the city is 52,693, ranking it as the seventh most populous city in the state. According to the 2007 US Census Estimate, Pine Bluff now has a population of 50,667The city is situated in the southeast section of the state in the Arkansas Delta with the Arkansas Timberlands region to its immediate west. Its topography is largely flat with wide expanses of farmland surrounding it. Pine Bluff is home to a number of creeks, streams, bayous (Bayou Bartholomew is the longest bayou in the world and is the second most diverse stream in the United States), and larger bodies of water such as Lake Saracen, Lake Langhofer (Slack Water Harbor) and the Arkansas River.

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