Here's a short story:

Louisville ( , or ) is the largest city in the Commonwealth of Kentucky and the 29th-most populous city in the United States. It is one of two cities in Kentucky designated as first-class, the other being the state's second-largest city of Lexington. Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County. 

Louisville was founded in 1778 by George Rogers Clark and is named after King Louis XVI of France, making Louisville one of the oldest cities west of the Appalachian Mountains. Sited beside the Falls of the Ohio, the only major obstruction to river traffic between the upper Ohio River and the Gulf of Mexico, the settlement first grew as a portage site. It was the founding city of the Louisville and Nashville Railroad, which grew into a system across 13 states. Today, the city is known as the home of the Kentucky Derby, Kentucky Fried Chicken, the University of Louisville and its Louisville Cardinals athletic teams, Louisville Slugger baseball bats, and three of Kentucky's six "Fortune" 500 companies. Its main airport is also the site of United Parcel Service's worldwide air hub. 

Since 2003, Louisville's borders have been the same as those of Jefferson County because of a city-county merger. The official name of this consolidated city-county government is the Louisville/Jefferson County Metro Government, abbreviated to Louisville Metro. Despite the merger and renaming, the term "Jefferson County" continues to be used in some contexts in reference to Louisville Metro, particularly including the incorporated cities outside the "balance" which make up Louisville proper. The city's total consolidated population as of the 2014 census estimate was 760,026. However, the balance total of 612,780 excludes other incorporated places and semiautonomous towns within the county and is the population listed in most sources and national rankings. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: what term is used to referece louisville metro?
Guess: Louisville/Jefferson County Metro Government

Question: when was is founded?
Guess: in 1778

Question: by who?
Guess: by George Rogers Clark

Question: named after who?
Guess: King Louis XVI of France

Question: is this the youngest city?
Guess: no

Question: How many fourtune 500 companies doe it have?
Guess: three

Question: where is it in relation to the mountains?
Guess: west

Question: how many states did the system spread across?
Guess: across 13 states

Question: have the boarders changed?
Guess: in 2003, yes

Question: what is louisville home to?
Guess: the Kentucky Derby

Question: is it home to any thing else?
Guess: Kentucky Fried Chicken

Question: what is it the main site of?
Guess: United Parcel Service's worldwide air hub

Now answer the following question in the same format.

Question: what rank of population does it have?

29th-most populous city in the United States