The equatorial region includes all areas along the imaginary line called the equator. The equator is located precisely at the midpoint between the North and South Poles. The equator divides Earth into the Northern and Southern Hemispheres. The latitudinal coordinate of the equator is 0 degrees.
The corresponding line of longitude is called the prime meridian. The equatorial region comprises approximately 6 percent of Earth's surface. The countries located along the equatorial region include Sao Tome and Principe, Gabon, Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia, Kiribati, Ecuador, Colombia and Brazil. There are numerous rainforests located within the equatorial region, including the Amazon, Ituri, Daintree and Harpan rainforests. Earth's circumference is larger when measured at the equator as opposed to the poles due to equatorial bulge.