Alright, here's mine:
From west to east...
WA/OR pink: Cascadia - coffee, drizzle, grunge
WA/OR/ID red: Oregon - desert, white supremacists
CA green: Bay Area - hippies, fog, marijuana
CA sky blue: Central Valley - fruits, vegetables, wine, white supremacists, meth
CA/NV orange: Alta California - Hollywood, gambling, beaches
NV dark blue: Nevada - desert, Mormons
ID yellow: Snake River - ski resorts, potatoes
AZ purple: Arizona - desert, heat, cacti, meth
AZ/NM red: Mega Rez 1 - Navajo, Hopi, Zuni, desert, cool turquoise beads, Grand Canyon
NM/CO blue: Newer Mexico - wrong turns at Albuquerque, police violence, desert
UT/CO sky blue: ski resorts, big cities, Mormons
WY/MT orange: nothing
MT/SD green: Mega Rez 2 - Cheyenne, Crow, Lakota, wind, Mt. Rushmore
NB/KS purple: corn
ND/SD/MN pink: cold, fracking
TX orange: Texas! (smaller, but more Texas-y!)
OK blue: Oklahoma - tornadoes, Native Americans
TX white: Aggieland - insufferable A&M fans, Soviet-era architecture, general awfulness
TX sky blue: Houston - oil refineries, Cajun expats, traffic
TX green: Piney Woods - trees, lakes, mobile homes
LA red: Best Louisiana - Cajuns, Creoles, spicy food, oil, hurricanes, pretty girls
LA yellow: Evil Louisiana: evil
AK/MO white: Greater Arkansas - Ozarks, retired people, bored grandchildren
MO pink: Lesser Missouri - police violence
IA/MN/IL sky blue: Iowa - corn, random patch of liberal voters
MS/AK orange: Mississippi - African Americans, random patch of liberal voters, humidity, cities named for places in ancient Egypt (Memphis, etc.)
WI/MI white: Almost Canada - cold, Green Bay Packers, goofy militia groups
IL green: Chicago - corruption
IL/IN/OH orange: Midwest - things, stuff
KY/TN dark red: Elvisland - rivers, unintelligible accents
MS/AL/GA sky blue: Dixie - southern belles, KKK chapters, cotton, funny accents, poverty
MS/AL/FL blue: Redneck Riviera - pretty beaches, hurricanes
MI dark red: Detroit - cars, misery
PA/NY sky blue: Rust Belt - manufacturing, snow, people who call soda "pop"
WV red: Appalachia - folk music, coal, poverty, white people
GA green: Atlanta - big city, traffic, hip hop
FL/GA purple: First Coast - Gullah, swamps
FL orange: Florida - Cuban expats, Disneyland, hurricanes, oranges
NC/SC yellow: Carolina - weird-but-tasty BBQ, beaches, phallic-looking skyscrapers
VA pink: Virginia - beaches, bros, navy personnel, tobacco farms
VA/ML dark red: Capital - politicians, crime, cities with no skyline
NJ/DE blue: Atlantic Coast - Philadelphia, salt water taffy
NJ/NY red: New York City - skyscrapers, I <3 NY shirts, hip hop
MA/CT/RI purple: New England - fishing, hilarious accents, prestigious universities
VT/NH/ME green: trees, hippies, libertarians