The next notation on the map I would make would be the northern and southern boundary. Taking into account, terrain, city boundaries, churches and a fair amount of attorneys for each state, I would then draw a line for the southern tip of San Mateo County to the northern tip of Eldorado County.
| Population | Estimated median income |
Voter registration | Race/Ethnicity | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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California statewide |
37,325,068 | $61,400 |
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| Northern California | 8,572,643 | $65,467 |
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| Southern California | 28,752,425 | $60,168 |
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Sources: 2012 American Community Survey 5-year estimates, California Secretary of State.
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