Nevada is unique, and the caucus results are interesting.
Clark County has an AA population of 9.08% (2000 Census), and Clinton won in Clark County. I have read she pulled out her victory there due to high Hispanic (26.1%) support and women voters.
Washoe County, otoh, has an AA population of 2.09% and Hispanic (16.58%). Obama won in Washoe County.
As far as the rurals are concerned, the demographics have changed in recent years, but, likely remain fairly blue collar. Nevertheless, the rurals here have seen an influx of white collar workers. Here's an interesting excerpt from a piece in Mother Jones from last year. They highlighted Lyon County as an example of one of the fastest growing counties in NV, where "... the newcomers live in $200,000 tract homes." Clinton won Lyon County.
... In particular, the dnc is taking a chance on the spectacularly rugged, arid country south and east of Reno. Democrats have historically won Las Vegas and environs—liberal and libertine, racially diverse, rapidly growing, and a trade union stronghold. But outside of Clark County, if you were a Democrat, you kept that fact to yourself. "You mention taxes in this county," says Charles Lawson, a cochair of the Democratic Party in Lyon County, a few miles down the highway from Fallon, "and they'll bite your head off."
There are only five towns of any size in Lyon County: the agricultural hub of Yerington (alfalfa, grains, onions, and garlic); Fernley, an exurb whose population has nearly tripled in the past decade; little Silver Springs, lacking even a supermarket to call its own; the proud old Comstock Lode town of Dayton; and Stagecoach, an outpost of 2,300 on Highway 50 (a.k.a. the California Emigrant Trail). In between are large ranches, working mines, a few oases, and lots of sun-singed, scrub-covered mountains. Many of the old-timers here pretty much built their houses from scratch; the newcomers live in $200,000 tract homes and commute to work in Reno and Carson City. Lyon County is a place where rainfall makes headlines and federal mandates on arsenic levels in scarce water supplies can throw people into paroxysms of rage; in the casinos that dot the roadsides, truckers and bored seniors gamble for Wal-Mart vouchers. "People who come out here," Snedeker says, "tend to want to be left alone."
That kind of isolation is getting harder to come by. Thanks to an influx of out-of-staters looking for sunshine, cheap real estate, and jobs (Amazon has a huge shipping center here), Lyon has become one of the fastest-growing counties in the nation. It's not the kind of boom that's made anyone rich—the income per capita is only about 75 percent of the national median. But it's the sort of exurb-meets-country growth that defines the most fluid part of the American electorate.
In 2004, George W. Bush won the nation's rural counties by 19 percent. ...
~snip~
But to secure Nevada, the Dems need to both win big in Sin City (where 79 percent of the registered voters voted in 2004) and minimize the party's losses in the "cow counties," as Las Vegans refer to the hinterlands. The ranching and gold-mining country on the Utah border is a lost cause, but in places like Lyon County, registered Republicans outnumber Democrats only 2:1. If the party can peel off maybe a thousand votes here, a thousand more in each of another few rural counties, and get an additional 5,000 to 10,000 in Vegas, that's the Nevada election—and, under a not-so-unlikely scenario, the presidency.
"Lyon's interesting, because there is a state Democratic organizing effort there," says state Rep. David Bobzien, an up-and-coming Democrat from Reno. "Yerington's the old agricultural Nevada and Fernley's the outer ring of growth—the urban explosion coming out of Reno." And historically, Bobzien says, it's been the newcomers who have shaped the political dynamics of the region. In the 1980s, blue-collar migrants fleeing California shored up the region's Goldwateresque identity; more recently, exiles from the San Francisco housing market have brought more progressive views.
"These communities are just right, or a little bit more, of center, yet they are changing quickly because of the influx of people," says 38-year-old Fernley mayor Todd Cutler,...
http://www.motherjones.com/news/feature/2007/11/how-the-west-might-be-won.htmlWhen trying to examine the caucus results in NV, I think, as I noted above in response to a related discussion on demographics, perhaps each candidate's ground game had more of an effect on the outcome of the caucuses, as noted here:
... Yet there is one major social divide, almost as important in its way as race itself, that Obama has already proved he can bridge, though the significance of his success has gone largely unnoticed. To see it clearly, you have to look closely at the results of the Nevada caucuses, which Obama narrowly lost to Clinton because he failed to carry Clark County, site of Nevada's only big metropolitan city, Las Vegas, with its enormous population of Hispanic voters. But in more rural counties he beat Clinton decisively - 63% to her 37% in Elko, 51% to 34% in Humboldt, 50% to 40% in Washoe (the missing percentages belong to John Edwards). I've been to those counties, their miles of lonely roads where you can drive for half an hour before encountering another vehicle, their scattered ranches and isolated towns, their seasonal creeks marked by lines of spindly cottonwood trees, the overwhelmingly Caucasian cast of their people. Out there in the mountains, sagebrush and high desert, Obama carried the day by far greater margins than his overall loss of the popular vote to Clinton across the state, and came out of the caucuses with one more delegate than she did.
~snip~
So Obama's victory over Clinton in rural Nevada says something important about his ability as the apostle of national reconciliation. To win against Clinton in Elko County (black population: 0.8%), he had to convert not only white Democrats, but a large number of independents and people who had voted Republican until caucus day; a feat he pulled off with dazzling facility. Any Democrat nominee who can do that, deep in Republican country, is likely to gain the presidency; and Obama has proved that he can. Clinton, laden with the moral, cultural and political baggage of the 1990s, is likely to fare as badly in Elko County as Kerry did in 2004, when he collected just 20% of the vote...
http://www.guardian.co.uk/world/2008/jan/31/usa.uselections2008