Causes of the Civil War Statistics

Causes of the Civil War Statistics

By the Numbers

Immigration and Territory

  • Between 1840 and 1860, estimated number of people that entered the United States: 4 million13
  • Of those that immigrated to the U.S. between 1840 and 1860, the percent that headed for northern states: 90%14
  • Size of territory ceded by Mexico to the United States with the signing of the Treaty of Guadalupe-Hidalgo in February 1848: 525,000 square miles or 1.4 million square kilometers15
  • In the election of 1860, the total number of votes that Republican candidate Abraham Lincoln received in Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, and Texas: zero

Free and Enslaved Black Population 1830 – 1860

Free Black PopulationEnslaved Black Population
1830319,59918302,009,04316
1840386,29318402,873,64817
1850434,49518503,204,31318
1860488,07018603,953,76019