List of cities by GDP: List of cities by GDP - Wikipedia
Use the first column if you can. If not, use whichever column gives you the larger figure.
List of countries by GDP:
Use the United Nations column.
I’m in San Antonio, TX ($96 billion GDP), which makes us larger than: Ecuador, Luxembourg, and Cuba. If we were our own country, we’d rank #62 in the world (within the US, we are the 35th largest city by GDP).
San Diego, CA, around $180 billion, right between Kuwait and Ukraine, around 55th in the world.
And we’ve got nuclear-powered aircraft carriers, too! (Okay, they’re just based here. Our economy is good, but not big enough to support an actual modern carrier battle fleet. So much for my plan to conquer Oregon and Washington, with the ultimate goal of annexing southern Alaska.)
Atlanta, $295B, right next to singapore and edging out Israel.
I’m amused we’re equivalent to basically another city on the other side of the globe. And I never though of Israel as an economic powerhouse, but it’s 38th in the world.
I used to live in Knoxville, TN ($36 billion), so suck it, Syria! 
We’re # 89! We’re # 89!
Looking at another source, I notice that the city of San Antonio has grown by $21 billion since 2008, the equivalent of adding Iceland and the Bahamas to our GDP in the past 7 years.
The US economy has grown $3 trillion in the same period, the equivalent of adding the economies of the UK and Austria. In 7 years. IOW, what it took them 800 years to do… we did in 7.
Portland wasn’t on the list, but the GDP of the whole state of Maine is $48.1 billion, which puts us just above Slovenia.
Edit: http://bangordailynews.com/2012/11/30/business/ways-to-look-at-portland-areas-share-of-maine-gdp/
Apparently the Greater Portland area accounts for more than half of the state’s GDP.
Osaka (/Kobe) 654 billion. Suck it Argentina.
Los Angeles: $765B. Coming in as the 19th-largest country, between Turkey and Saudi Arabia.
Mmm…Turkey.
My home town, London, is either just ahead or behind of the country I’m in now, Saudi, depending on which criteria you look at.
Glasgow’s slightly ahead of Edinburgh (21.3 vs 20.5) but we both fall between Zambia (# 107) and Afghanistan (# 108)
Washington DC – we beat Austria! Suck it, Austrians, and go throw another shrimp on the barbie.
I think I’m missing something…the list of cities’ column headers indicate it’s in billions (BN) and the list of countries column headers says millions of US $.
Is everyone else just mentally adding zeroes to the list of countries?
(I’m seriously under-caffeinated…and have mild dyscalculia.)
BTW, never mind Boston…Harvard’s endowment is greater than half the world’s economies. Suck it, half the world!
Melbourne, $253 Billion (according to column 1) is just ahead of Greece, $241 Billion, 43rd in the world.
Which is amusing, because it’s one of the pieces of Received Melbourne Wisdom (probably no longer true) that we’re the number 2 Greek city in the world, after Athens.
Cape Town, at $103 Billion, is just behind Morocco and well ahead of Ecuador, Oman & Cuba
…and San Antonio. We’d pip them for that #62 spot.
Dallas. 420 billion. That puts us slightly ahead of Thailand, the UAE and slightly lower than Austria and Taiwan.
Detroit is right up there with Pakistan? Sounds about right. Only Pakistan is probably safer.