The answer to the question is: Four (4). Texas, Louisiana, and Florida are partly, but not entirely, south of 30° north latitude. Hawaii is entirely south of 30° north latitude.
There are four US states located along or south of 30 degrees north latitude: Florida, Louisiana, Texas, and Arizona.
In the USA, only four states have any territory at 30 degrees north latitude or south of it. They are Florida, Louisiana, Texas, and Hawaii. Any others are states of Mexico, nations of Central and South America, the south Pacific, southern Asia, or Africa.
Bolivia, Brazil, Chile, and Paraguay are the four South American countries through which the 20 degree south line of latitude passes. The 20 degree south line of latitude is 20 degrees south of the equator. It's called the 20th parallel south.One, it passes through Chile at 20 degrees South latitude and 70 degrees 7 minutes West longitude.Two, it passes through Boliva twice, at 20 degrees South latitude and 68 degrees 33 minutes West longitude; and at 20 degrees South latitude and 58 degrees 10 minuts West longitude.Three, it passes through Paraguay at 20 degrees South latitude and 61 degrees 53 minutes West longitude.Four, it passes through Brazil at 20 degrees South latitude and 57 degrees 52 minutes West longitude.
Argentina , Chile , Uruguay
-- The parallel of 20° North latitude doesn't touch South America at all. -- The parallel of 20° South latitude crosses territory in Chile, Bolivia, Paraguay, and Brazil.
Chile Bolivia Paraguay Brazil
In the United States, a bachelor's degree is traditionally a four year degree.
Chile, Bolivia, Paraguay, and Brazil
The states in order from farthest south to farthest north are Alabama, Missouri, Michigan, and Wyoming. Alabama is located in the southeastern U.S. and has the southernmost latitude. Missouri is to the north of Alabama, followed by Michigan, which is further north, and Wyoming, the northernmost of the four states.
South Carolina, Mississippi, Florida, Alabama
What two states have four 90 degree corners