Secession referendum, 1859.
I haven't got the data on me, but I can get it from the library if anyone's interested.
Nobody cares?
Why is that one county so different? Where is it anyway?
It's San Luis Obispo, and historically is not that close to SoCal being part of the Central Coast. I don't know how relevant that is to the 1859 referendum.
Unfortunately, I haven't got much background information on this referendum, but it was over slavery, and San Luis Obispo's topography does not lend itself to a slave-based economy in the same way that the others do.
But the vote total in this referendum was suspiciously low; as I recall, Los Angeles County was the only one where the losing side got more than a few dozen votes.
EDIT:
San Luis Obispo County voting history:
1852 | Scott |
1856 | Frémont |
1860 | Breckinridge |
1864 | Lincoln |
1868 | Grant |
1872 | Grant |
1876 | Tilden |
1880 | Garfield |
1852 and 1856 were by rather large margins, which makes 1860 all the more interesting (though Breckinridge did not break 30%).