Researchers at the University of Vermont sifted through more than 10 million geotagged tweets from 2011 to map out the moods of Americans in urban areas. They ranked the locations based on frequency of positive and negative words using the Mechanical Turk Language Assessment word list.
The list includes 10,000 words that have been rated on a scale 1 to 10 according to how "happy" they are. On the lower end of the scale are negative words such as mad, hate, no, boo, smoke and jail, as well as a colorful and thorough assortment of expletives.
Happy words include the omnipresent LOL and haha, as well as good, nice, sleep and wine, and food or beach related words. According to the list, rainbow is one of the happiest words and earthquake is one of the saddest.
Maine, Nevada, Utah and Vermont round-out the top five happiest states list, following rainbow and beach-filled Hawaii. Louisiana was found to be the saddest state, followed by Mississippi, Maryland, Michigan and Delaware. One reason for Louisiana's low cheeriness ranking (they must not have measured during Mardi Gras) is its inhabitants' fondness for profanity.