Now that California's economy is moving again, fewer of its consumers  and businesses are likely to be on the move - which may be bad news for   nearby states and their banks.   
The Golden State's lengthy recession fueled a remarkable exodus to the  adjacent Rocky Mountain states and sparked impressive loan growth for banks   there.   
  
Loans increased by 22.7% last year at First Security Corp., Salt Lake  City, 21.6% at Washington Mutual Inc., Seattle, and 15.1% at West One   Bancorp, Boise, Idaho.   
First Interstate Bancorp, Los Angeles, which has a large franchise in  western states besides California, enjoyed loan growth of 18.5% last year. 
  
In contrast, Wells Fargo & Co., San Francisco, which has few operations  outside California, had no net loan growth for 1994, though a pickup was   clearly apparent in the fourth quarter.   
Such numbers have helped lure investors and also spurred purchases of  banks in the mountain region by banking companies from slower-growth   states. Colorado, in particular, emerged as such a hot spot for   acquisitions that it no longer has major independent banks.     
But if the outflow of people and businesses from California is indeed  slackening - as indicators such as new driver's licenses now hint - the   still sparsely populated mountain region is itself likely headed for less   spectacular growth.     
  
Economist David Hensley at Salomon Brothers Inc., thinks population  growth in the Rocky Mountain states peaked last year after California's   economy finally hit bottom and its housing prices stabilized.   
"The states most vulnerable to a California recovery are Nevada,  Colorado, and Utah," he said. Oregon, Washington, Idaho, New Mexico,   Montana, and Wyoming will also feel the effects.   
Indeed, because it was in the doldrums so long, California may gather  momentum as other areas cool down from the effects of Federal Reserve   interest rate increases over the past year.   
"I think California is in a countercyclical kind of recovery right now,"  said Carl E. Reichardt Jr., an analyst at Montgomery Securities, San   Francisco.   
  
"Obviously, sharply higher rates would hurt the state, but assuming they  go up less this year than last year, we think the state's momentum will   continue to build," he said.   
"We're as optimistic now as we have been since the recession here  began," he said. "Payroll jobs are growing some, building permits have   come back, and household incomes are growing in relation to home prices,   which have fallen for four years."     
From 1990 to 1993, California lost 4.8% of its job base, shattering its  postwar image as virtually recession-proof. A string of disasters,   including severe earthquakes and a riot in Los Angeles, deepened the gloom.   
The result was an outflow of disillusioned Californians and sharply  lower inflow to California from elsewhere in the United States, blunting   historical migration trends.   
Mr. Hensley noted that population in the mountain states surged 3% last  year, triple the national gain of 1%, according to U.S. Census Bureau data.   About two-thirds of the region's growth came from domestic migration from   the rest of the United States.     
By comparison, California's population grew just 0.7% last year,  compared with a long-term trend forecast for the state of 1.6%. 
And that growth was principally from births and international  immigration. Net domestic migration to the Golden State was negative   426,000 last year, the economist noted.   
Mr. Hen  sley was the director of the highly regarded Business   Forecasting Project at the University of California at Los Angeles before   migrating eastward himself, to New York.     
But long-term trends are reasserting themselves. California is expected  to return a growth pace faster than the national average in the remainder   of the decade, but not as fast as during the 1980s because of its high   costs.