Since I got my TAG kart, I'm constantly looking up the satellite views of random tracks when I'm bored. In my research I noticed there was no complete up to date directory of tracks in the country, so over the last few weeks, I decided to attempt to document all active sprint tracks in the United States, (and many inactive ones too). Below is what I have so far, if you notice any mistakes or omissions, let me know. If you're interested in being added as a contributor definitely let me know too. I'd like to document all paved and dirt ovals too, but that's a lot more tracks that seem to come and go frequently so I don't have the time to undertake that on my own.

View Sprint Kart Tracks in a larger map

As of 2012, there are 110 tracks in the United States with active regular traditional sprint kart racing. For fun I did some analysis, using the list of largest Metropolitan Statistical Area (MSAs).

Regional Breakdown:

It's no surprise that regionally, the West Coast and Florida have the the best sprint karting scene, with virtually every major population center (in the top few hundred MSAs) in these regions having at least one if not multiple kart tracks within driving distance. A lot of top karters, a lot of the karting industry, a lot of big races and a lot of karting history are all from these areas.

The Mountain states have a perhaps somewhat surprisingly good coverage of tracks. Denver, the largest metro area in the region has 3 pretty close in yet is only the 21st largest MSA in the country, with a 4th track not to far away in Colorado Springs. That's way more tracks then many more populous areas. The second and third biggest population centers in the region, Salt Lake City and Las Vegas each have a solid kart track (in terms of size and facilities). Although the upper mountain states cover a lot of area and don't have many tracks, there aren't big population centers here.

Most parts of the Midwest are well covered. Some of the top karting tracks in the country are located in the midwest, such as Concept Haulers Motor Speedway (Norway) 70 miles from Chicago, and New Castle Motorsports Park, 45 miles from Indianapolis. So although several big cities don't have a kart track very close in, from almost all major cities there are several kart tracks within a few hours drive, with a mix of small club tracks and national level circuits. Additionally there are several annual temporary street kart races in the midwest, and even a series of street races based around Indianapolis.

The North East from New England south to Maryland has a decent amount of tracks, but considering the concentrated population in the North East relative to some other parts of the country, I feel the region is still somewhat under served as a whole. For example, New York is the biggest population center in the country and has 3 kart tracks in or near the area, but none are national level tracks that the Southern California and Chicago areas have.

The South (minus florida) has some tracks sprinkled throughout, but with only a few exceptions most are tiny club tracks. Although the two biggest MSAs in the region, Altanta and Charlotte, have recently added major top level tracks, the rest of the region may be active in other forms of racing but sparse in terms of left and right turn sprint tracks.

The Plains states don't have much sprint karting either, with only a few tracks in Oklahoma, Kansas and Missouri, and no active tracks I could find in Nebraska, or North and South Dakota. However, with none of the top 150 MSAs, there are no major population centers in these states.

Most Under Served Areas:

I looked through the list of MSAs and determined several under served areas where a new kart track would make sense.

Washington D.C - The 7th most populous MSA in the United States, it's the only MSA in the top 30 with no kart tracks within 90 minutes from the core city! Two tracks exist outside of Baltimore, but they are small club tracks. The closest major karting is New Jersey Motorsports Park almost 3 hours away. The economy in D.C. has been pretty strong through the recession, the population continues to grow steadily (2.18% from 2010 to 2011, behind only Dallas and Houston among top 20 MSAs) and the ranks among the highest income metro areas in the country. If a track was built in the Virginia suburbs, the track could draw from the rest of Virginia to parts of North Carolina and West Virginia, including 44th ranked MSA Richmond, VA (less than 2 hours away) and Hampton Roads 36th MSA (3 hours away), which are also pretty much sprint karting dead spots.

Nashville - The 37th most populous MSA has only one small club track 50 minutes away, and is near the middle of a huge dead zone for sprint karting throughout the states of Tennessee and Kentucky. A major karting center could draw from places as far as Memphis where there are also no sprint karting venues.

Charleston, SC - It's only the 78th largest MSA but it's growing at a rate of 2.68% (from 2010 to 2011) and does not have any active sprint karting within two and a half hours. It has a growing economy and pretty nice weather for a longer racing season.

Albuquerque, NM - The biggest city in New Mexico, in the fast growing southwest, and 57th MSA in the country had one track for sprint racing, practice and rentals but it's currently closed. I still think there's potential in the area though; neighboring Arizona has built several modern sprint tracks, but these along with tracks in West Texas and Colorado are over 5 hours away! If those tracks in Arizona are successful, I don't see why one in Albuquerque wouldn't be at least worth a shot.