Oklahoma City has seen steady population growth in the past decade as the area continues to draw people from the rest of Oklahoma and other states.
The city's population grew to 560,000 in 2009, according to Census Bureau estimates. That's an increase of 9 percent since 2000.
Most of the growth has come from other places in Oklahoma, although about 11 percent of the city's population was born in another country.
The city also has drawn residents from other states, according to income statistics from the Internal Revenue Service.
Although their overall numbers are small in comparison, hundreds of new residents have come from some of the hardest-hit areas of the country during the recent recession. IRS figures show more people moved to Oklahoma City from parts of southern California, Phoenix and south Florida than vice versa.
Eric Long, manager of economic research for the Greater Oklahoma City Chamber, said many are looking for a fresh start.
"They are unhappy with employment and cost-of-living issues in their home states and have heard about Oklahoma City," Long said. "They may not have relatives or know anyone here, but are still willing to take a chance on our city."
Those transplants find much more affordable quality of life in Oklahoma City. For example, someone moving from Los Angeles would find Oklahoma City housing costs to be 62 percent less, according the latest ACCRA Cost of Living Index. Transportation costs, utilities and groceries also would be much lower.
How Oklahoma City compares to Oklahoma
High school education
Bachelor's degree or higher
Median household income
35 years old
Median home value
Source: U.S. Census American Community Survey 2006-08