Story highlights Voters in Colorado resoundingly supported taxing marijuana on Tuesday 
 
 Voters in 6 states will consider 31 ballot measures Tuesday 
 
 Voters in 11 Colorado counties are considering the question of secession 
 
 New Jersey voters are being asked to raise their state's minimum wage to $8.25 per hour 
 
 Last year, voters in Colorado approved legalizing recreational marijuana, and on Tuesday night, they resoundingly supported taxing it. 
 
 With nearly all votes counted, 65% supported the new tax, while 35% opposed it. The measure would impose a special 15% excise tax on marijuana to help fund school construction, along with a 10% sales tax to bolster marijuana-related law enforcement efforts. 
 
 The passage was widely expected, despite opponents arguing it's unfair to single out marijuana for higher taxation than products such as beer. 
 
 Strong support for the measure is pegged largely to the money it is expected to bring in. The nonpartisan Colorado Legislative Council projects that the measure will generate nearly $70 million in additional state tax revenue next year. 
 
 There were 30 other measures on the ballot in six states Tuesday, all of which were too early to call for CNN. Here are highlights from a few: 
 
 Colorado: secession 
 
 Voters in 11 counties in northern Colorado are being asked if they want to secede from the state. Ten counties in conservative, rural northeastern Colorado would theoretically form a 51st state known as North Colorado. Moffat County, located in the northwest corner of the state, would become a panhandle for neighboring Wyoming. 
 
 JUST WATCHED Colorado conservatives want to secede Replay More Videos ... MUST WATCH Colorado conservatives want to secede 02:44 
 
 The plan has no chance of becoming reality. Among other things, it would also require statewide and congressional approval. But approval or even a close vote at the county level would send a loud message of growing grassroots conservative anger toward a more liberal Denver-based Democratic establishment that has taken up controversial measures related to gun control, gay rights and green energy. 
 
 With more than 50,000 votes counted in Weld County, the most populated county of those trying to secede, 58% of votes were against secession and 42% were in favor of it. CNN, however, does not yet have a projection on this measure. 
 
 Similar secession measures have been floated in a number of other states in recent years in a reflection of the country's growing ideological and partisan divide. 
 
 Washington: Labeling genetically modified food 
 
 Voters in Washington state are considering a hotly contested initiative that would require labeling all foods containing genetically modified ingredients. The measure pits local consumer advocates, who argue that the measure is needed for consumers to make better informed choices, against large agribusinesses such as Monsanto, which argue that such a law would spook potential customers and unfairly imply that such products are unsafe. 
 
 Washington is the second state to consider such a ballot measure. A similar proposal was narrowly rejected by California voters last year. 
 
 With more than 800,000 votes counted, 53% of Washington State voters opposed the labeling, while 47% supported it. It is still, however, too early for CNN to call this race. 
 
 According to the nonpartisan National Conference of State Legislatures, 95 bills relating to the issue have been introduced in various legislatures so far this year -- a reflection of growing public interest in the controversy surrounding genetically modified foods. 
 
 Other noteworthy measures 
 
 Voters in New Jersey are considering whether to amend their constitution to raise the state minimum wage from the federal level of $7.25 to $8.25 per hour. Future annual increases would be tied to changes in the cost of living. Eighteen states have a minimum wage that exceeds the federal requirement, according to the NCSL. 
 
 New York voters are being asked to revise their constitution to allow the legislature in Albany to authorize seven casinos, with the goal of generating new revenue for public schools and potentially cutting property taxes. ||||| Voters across the country faced ballot measures Tuesday ranging from whether to approve seven casinos in New York to the fate of Houston's iconic Astrodome. Here's a look at some of the questions. 
 
 Brian Vicente, chairman of the Yes on Prop. AA campaign, right, and campaign staffer Christie Nima, look at vote returns on a laptop during an election party for those in favor of Proposition AA, to impose... (Associated Press) 
 
 FILE- In this May 21, 2012 file photo, the Astrodome sits gathering dust and items for storage in Houston. A coalition of local and national preservation groups is taking its efforts to save the iconic... (Associated Press) 
 
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 MARIJUANA AND ALCOHOL 
 
 COLORADO: Voters approved a 25 percent tax on newly legal recreational marijuana to fund school construction. Opponents argued the tax rate would benefit black market sales. 
 
 MAINE: Voters in Portland, Maine's largest city, declared victory on a measure to legalize possession of recreational amounts of marijuana. 
 
 MICHIGAN: Voters in Ferndale, Jackson and Lansing approved proposals offering some legal protection to users of small amounts of marijuana. 
 
 UTAH: Residents in the small town of Hyde Park are voting on whether to allow beer sales in a proposal that has divided the conservative, mostly Mormon city. Hyde Park is among a handful of dry cities left in the state, and the ordinance would only allow the sale of beer with the alcohol content of 3.2 percent. 
 
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 SECESSION 
 
 COLORADO: Voters in 11 largely rural counties are deciding on a mostly symbolic effort to form a 51st state called North Colorado because of what supporters call a disconnect with urban areas. The Legislature and Congress would have to approve the creation of a new state, something considered unlikely. As of around midnight, at least six of the counties had voted against the proposal. 
 
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 GAMBLING 
 
 NEW YORK: New York voters bet big on casino gambling as an economic energy shot, agreeing to let seven Las Vegas-style gaming palaces be built around the state, including eventually in New York City. 
 
 MASSACHUSETTS: Voters in Palmer rejected Mohegan Sun's plan for a $1 billion resort casino and entertainment complex. And Suffolk Downs says it will reassess plans to build a resort casino at the 78-year-old thoroughbred race track after voters in a Boston neighborhood rejected its proposal and residents of a neighboring community approved it. 
 
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 ASTRODOME'S FUTURE 
 
 TEXAS: Voters rejected a plan to authorize bonds to turn the Houston Astrodome, the world's first multipurpose domed stadium, into a giant convention and event center and exhibition space. The outcome means the stadium is likely to be torn down. 
 
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 MINIMUM WAGE 
 
 WASHINGTON STATE: Voters in the small Seattle suburb of SeaTac are deciding whether workers at Seattle-Tacoma International Airport and nearby large hotels should be paid a $15-an-hour minimum wage and obtain a handful of sick days. Washington state already has the highest minimum wage at $9.19. 
 
 NEW JERSEY: Voters approved a constitutional amendment raising the state's minimum wage by $1, to $8.25 an hour, and to provide for automatic cost-of-living increases, as 10 other states already do. 
 
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 HEALTH AND ENVIRONMENT 
 
 MAINE: Residents of South Portland rejected a proposal aimed at blocking the flow of tar sands oil from western Canada to the city. Environmentalists say the thick, gooey oil is more difficult to clean up than conventional crude oil, contains harmful chemicals and releases more greenhouse gases. Supporters of a pipeline say a ban would hamper the growth of existing petroleum-based businesses. 
 
 WASHINGTON STATE: A measure that would require mandatory labeling of genetically engineered foods was failing in early returns. Washington would be the first state to put such requirements in place, and the campaign has shaped up to be one of the costliest in state history. 
 
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 GAY RIGHTS 
 
 MICHIGAN: Residents of the Detroit suburb of Royal Oak approved an ordinance making it illegal to discriminate based on sexual orientation and a number of other factors. 
 
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 SCHOOL FUNDING 
 
 COLORADO: A kindergarten-through-12th-grade school-finance overhaul was rejected; it would have increased income taxes about $1 billion a year and revived a progressive income tax structure abandoned in the 1980s.
– Could "North Colorado" soon become the 51st state? Voters in 11 northern Colorado counties will get to weigh in tomorrow on whether or not they'd like to secede from the state, CNN reports. Ten of the conservative-leaning counties would become North Colorado, while the other would become a panhandle for Wyoming. Of course, CNN thinks there's zero chance this actually happens, because the entire state and congress would have to vote to approve the move. But it still stands as one of the more intriguing ballot measures up for vote tomorrow. Others include: Colorado is also voting on whether or not to impose a 15% excise tax on now-legal marijuana sales, which would go to fund school construction, and an additional 10% sales tax to fund marijuana enforcement laws. Washington state has a measure that would require special labeling for genetically-modified food—a proposal that met with ardent opposition and eventual defeat in California last year. Sure enough, out-of-state opponents have poured money into this race as well, the Seattle Times reports; of the whopping $22 million raised in opposition, $550 has come from Washingtonians. New Jersey will consider a constitutional amendment to raise the state's minimum wage to $8.25 an hour. New Yorkers are considering whether or not to allow the construction of seven casinos, with the proceeds going towards education and/or cutting property taxes. New Jersey is also considering a gambling bill of sorts, the Star-Ledger reports, allowing veterans' groups to raise money via Bingo games, raffles, and similar games.