St. Louis County Map, Missouri

Detailed road and geographic map of St. Louis County.

County Information

  • State: Missouri
  • FIPS Code: 29189
  • Population: 1,004,125
  • Area (sq mi): 507.8
  • Density: 1,977.4/sq mi
  • Growth Trend: +1.2%
  • Households: 444,653
  • Election Data: Democrat
  • Climate Zone: Cold/Continental

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Overview

St. Louis County is located in the U.S. state of Missouri. It has a land area of approximately 507.8 square miles.