Boston population estimates for 2001-2009.

What was Boston’s population in 2005? That depends on when you asked the question.

Last week the United States Census Bureau released its latest population estimate for cities and towns with at least 100,000 people. The estimate for Boston was 645,000, crowning a rather spectacular turnaround for the estimate of the city’s population size. The table below shows how the estimates for the city’s population size has changed over the past decade, going from showing a loss of 30,000 people to a gain of 55,000.

The row for 2000 how the city’s population according to the 2000 census.

The red cells indicate estimates that were lower than the city’s population in 2000.

Boston’s population (in ’000) according to estimates series that ended in
  2009 2008 2007 2006 2005 2004
2000 589 589 589 589 589 589
2001 602 601 590 588 590 590
2002 608 604 590 587 585 585
2003 608 602 591 587 577 578
2004 607 598 594 589 568 569
2005 610 597 597 597 559
2006 612 596 596 591
2007 623 608 599
2008 637 609
2009 645