Population growth and loss: Madison Wisconsin is on the cusp of overtaking St. Louis Missouri

 

The population of St. Louis peaked at 856,796 in 1950.  Since then it was plummeted 67%.

Source:  Wikipedia (St. Louis, Madison)

Since 1950 the population of Madison has increased nearly 200%.

However, the St. Louis Metropolitan Statistal Area (MSA) has a population of 2,796,999, the 23rd largest in the U.S.

The Madison MSA has a population of 694,345 --  #67 on the list.