Who Fought in the Battle of Gettysburg?

The Confederate Army of Northern Virginia
70,100 men and 280 guns commanded by General Robert E. Lee

vs.

The Federal Army of the Potomac
93,700 men and 372 guns commanded by Major General George G. Meade

The armies at the Battle of Gettysburg included regiments and batteries from 12 Southern and 18 Northern states. See the States at Gettysburg.

The Federal Army of the Potomac had an advantage in numbers of almost 24,000 men, helped by a last-minute transfer of over 10,000 men from the rear-area forces around Washington and Baltimore.

Strengths of the armies at Gettysburg

Strengths of the armies at Gettysburg

ArrowMore-wSee a comparison of the strength of the corps and divisions
of the armies at Gettysburg

How many casualties were there in the Battle of Gettysburg?
How many people died at Gettysburg?

Gettysburg was the bloodiest battle of the Civil War. Until Gettysburg that title had gone to the Battle of Chancellorsville, fought just two months before. And although later battles such as The Wilderness and Spotsylvania would surpass Chancellorsville, Gettysburg would remain the costliest Civil War battle.

Army-Casualties

 

casualty-color-key

It is estimated that there were at least 45,000 and possibly as many as 51,000 casualties in the two armies at Gettysburg. Note: the term “casualties” means not just people who were killed, but also includes men who were wounded (many of whom may have died of their wounds later), soldiers who were captured, and even men who ran away. It’s impossible to calculate an exact number because of missing or incomplete records. This estimate is one of the more conservative and probably significantly understates Confederate missing and wounded:

killed
wounded
missing
total
Union

3,150

14,500

5,165

22,815

Confederate

4,400

12,950

5,350

22,700

Total

7,550

27,450

10,515

45,515

See a detailed table of the strength and casualties of the Army of the Potomac

See a detailed table of the strength and casualties of the Army of Northern Virginia