dcharleos
Donor
For comparison (this is only one possible set of figures; other sets may be different but the ratios should be the same) some GDP and pop. figures for 1913 in USD (without colonial empires):
Germany - 280B/65M
A-H - 120B/54M
France - 130B/40M
UK - 230B/45M
Italy - 95B/35M
Russia - 265B/170M
Spain - 40B/20M
Japan - 90B/ no idea
OTL USA - 520B/100M
Depending on what size of its economy and population we ass(pull)ume and comparing with Italy, the CSA is either edging onto Great Power status ... or already there ...
In 1890, the Southern states produced about 20% of the pig iron in the US (this was the year for which I could find the best data--sorry 1913). That's about 2 million tons. That's double the output of Russia and Austria-Hungary, 2.5 times the capacity of Belgium, eight times more than Spain, 14 times more than Italy, equivalent to France, and about 1/2 of Germany and 1/4 of the UK. Without the massive losses in wealth brought on by the complete collapse of currency and abolition IOTL, I don't know why they would realistically be at a level less than this, and I can think of many realistic reasons why they would be ahead of what they were at IOTL.
I strongly suspect that the South around 1910 produced more than 20% of US textiles. I'm not in the mood to go down a statistical research rabbit hole right now, but let's call it 30%. If we extrapolate that (which may or may not be reasonable +/-)*, and say that the South in 1910 represented about 1/4 of the US economy, then we arrive at the figure of 130 billion. There were about 25 million people in the 11 Confederate states including West Virginia and Kentucky. So, you know...that ain't nothing.
*Even if it isn't reasonable to do for OTL, it may very well be reasonable to do for an ATL. An independent CSA is inherently a CSA that enters the peace far less devastated than the Southern states of the former Confederacy did after they lost the war IOTL. For me, that's a given for timelines where the South wins--I basically think it's impossible for the CS to win without significant changes in 1862. By 1863, they were dead even if they didn't know it. I don't consider CS victory as a result of the 1864 election (of the sort where everything stays the same except for Sherman not taking Atlanta) to be within the realm of plausibility.
The data on the Southern capacities comes from The Engineering and Mining Journal, vol. 54 page 54. The data on the European countries comes from
European Historical Statistics, 1750-1970, page 393.