How many union states during the civil war?

Answer 1

1. South Carolina (December 20, 1860)

2. Mississippi (January 9, 1861)

3. Florida (January 10, 1861)

4. Alabama (January 11, 1861)

5. Georgia (January 19, 1861)

6. Louisiana (January 26, 1861)

7. Texas (February 1, 1861)

After the Confederate attack on Fort Sumter on April 12, 1861, and Lincoln's subsequent call for troops on April 15, four more states declared their secession:[9]

1. Arkansas (May 6, 1861)

2. Virginia (April 17, 1861)

3. Tennessee (May 7, 1861)

4. North Carolina (May 20, 1861)

Two more slave states had rival secessionist governments. The Confederacy admitted them, but the two pro-Confederate state governments soon went into exile and never controlled the states which they claimed to represent[citation needed]:

1. Missouri did not secede[citation needed] but a rump group proclaimed secession (October 31, 1861).

2. Kentucky did not secede[citation needed] but a rump, unelected group proclaimed secession (November 20, 1861).

Although the slave states of Maryland and Delaware did not secede, many citizens from those states joined the Confederate Army of Northern Virginia.

Answer 2

The American Civil war was fought between Union and Confederate forces from 1861 to 1865. The Union or North had 20 free states and were supported by 5 border slave states.