I got the inspiration to create this map after seeing states with a smaller population tham Los Angeles County map. I had already known that Los Angeles County was one of the most populous counties in the US, but I didn't realize it had more residents than almost every US state with the exception of a handful. After some research, I discovered that Los Angeles county was in fact the MOST populous US county (10+ million people). As of 2017, almost 1 in 30 American lives in Los Angeles county.
Once you realize that Los Angeles county has a ton of people, it wouldn't surprise you to learn that the county's economy is pretty big too, which I discovered after doing some research. Los Angeles county's GDP was larger than all US states except Texas, New York, Florida, Illinois and Pennsylvania.
During my research, I found when it comes to estimating the size of Los Angeles County's economy, many people also include the economy of Orange County as well. This is because Los Angeles County and Orange County border each other and have intertwined services, industry, and infrastructure. Together they form what is known as the Los Angeles metropolitan area, the second most populous metropolitan area in the US after only the New York metropolitan area. But the more impressive fact is that the Los Angeles metropolitan area's GDP is larger than every US state outside California with only two exceptions: New York and Texas.
LA Metropolitan Area and US States' GDP (millions of dollars) in 2016
|4||Los Angeles metropolitan area||1,001,677|
|35||District of Columbia||126,478|