California has a large population of 38.8 million. For comparison Canada has 35.1 million residents distributed among its 10 provinces and the New England states house 14.7 million yankees in six states. With such a large population it is not surprising that the state has several regions with distinct cultures. This in itself is not sufficient merit to split up the state. One of the wonders of a liberal republican form of government is that diverse populations can coexist so long as they are treated equally before the law and have the freedom to exercise their various cultures. The problem is when these cultural differences lead to different public policy demands.
Consider for example the issue of abortion. In most matters of religion it is sufficient to allow different faiths to practice their beliefs so long as they keep to themselves. Why should non-Jews care if Jews must follow kosher dietary restrictions? The same cannot be done with abortion though. Those who believe, often due to their religious inclinations, that abortion is murder cannot tolerate its practice among those of other faiths or atheists. What is to be done?
One option would be to break up California. Although those on both sides of the abortion debate exist across California, there is also quite a bit of spatial correlation. See here. The Central Valley and Inland Empire counties both have significant portions of their populations favoring abortion limitations. Both regions also have low support for same sex marriage, see here, so it is safe to assume that their cultural differences with the rest of California is not on just one issue but several important public policies.
I would caution those who propose splitting up California between its inland and coastal regions. Both the Central Valley and Inland Empire may be culturally conservative, but the inland northern counties do not seem to fall in line. Nor would I recommend the Coastal/Inland split for those concerned about partisanship, see here. The San Francisco Bay Area, Northern Coast and Los Angeles are liberal strongholds but the Central Coast and Orange-San Diego region aren’t.
Similarly a North/South split would do little to help address regional cultural differences. The North/South split would usually split the state apart at San Luis Obispo-Kern-San Bernardino county lines. This would lead to the conservative Central Valley being lumped into the same state as ultra-liberal San Francisco. Meanwhile the Inland Empire and Orange-San Diego counties would find themselves sharing a state with blue Los Angeles.
What would be a good split then?
I personally favor the creation of four new states. Jefferson (the northern coastal and inland counties), San Francisco (the bay area states), Los Angeles (LA County), Central Valley (everything between Fresno and Bakersfield roughly) and the rest of southern California.
Given that any division would have to be approved by Congress the new states of Jefferson, San Francisco, and Los Angeles would have to be gerrymandered in such a way as to ensure they are blue states and maintain as many electoral votes from old California as possible. The Central Coast would likely be gobbled up between LA and San Francisco. This gerrymandering would be needed to get Democrat votes who would otherwise be against losing all those electoral votes. Although Democrats would get two more seats in the Senate the Republicans could favor the deal in order to sweep extra electoral votes from the Central Valley and Southern California.
Although the split would be less than perfect, it would still grant greater say over public policy to the conservation counties.
Thoughts? Further maps on Californian public policy opinions can be found here.
P.S. In regards to the water issue, I like to think that the split of California would lead to a revision of the Colorado River Compact and related laws in order to create a more market oriented process for water allocation. I can dream can’t I?