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A report [pdf] released Friday by the Demographic Research Unit of the California Department of Finance shows that California's population growth dropped to one of its lowest rates, 0.54 percent, for the period from July 1, 2017 to July 1, 2018. The state added 215,000 people to total 39.8 million, still shy of the 40 million figure that it had been projected to reach this summer.
Discrepancy with Census data
The Census Bureau also released data on Friday for the same period showing a national growth rate of 0.62 percent, an 80-year low. However, the Census Bureau uses different methods to collect their data, so their findings differ significantly
The Census reported California's population increase as 157,696 to total 39,399,349, a growth rate of 0.40 percent, meaning California's growth rate was more than 35 percent slower than the national average.
State data found:
Sticking with state, as opposed to Census, data, the demographic unit's May 1 report [pdf] for calendar year 2017 (posted here) showed a growth of 0.78 percent and a "0.86-percent annualized growth rate since the 2010 Census."
Even more than usual, growth was driven largely by natural increase. Births minus deaths accounted for 90.2 percent of the growth, or 194,000 new residents.
Birth rates declined at faster pace than previous years and reached their third lowest level since the beginning of the state vital statistics registration system in 1905. As the baby boomer generation advances towards retirement ages, the death rate has slowly increased.
Two years ago the demographic unit reported that the birth rate had dropped to its lowest in history, but the growth rate was 0.75 percent, compared to 0.54 percent this year.
Net migration, which includes domestic and international movement of both legal and unauthorized residents, added 21,000 people, accounting for less than 10 percent of the growth.
A Legislative Analyst's Office report released Feb. 21, analyzing only domestic migration, found that more Californians moved to other states than arrived here from other states every year since 1990. What's kept net migration a positive number is the net movement of people to the state from other countries, but that could slow due to the Trump administration's reversal of U.S. immigration policies.
Additional signs of slowing population growth could be seen from the large number of counties losing residents. Among the states 58 counties:
The counties with the largest numeric growth were largely in Southern California, led by Riverside, San Diego, Los Angeles, San Bernardino and Sacramento, while Central Valley counties saw the largest rates of increase.
Is shrinkage in California's future?
The slowing growth rate supports a column last summer by Joe Mathews of Zócalo Public Square who surmised "that our era of population growth is nearly over — and that shrinkage could be our future," and by Los Angeles Times political columnist, George Skelton, who warned last January that California may lose a Congressional seat after the 2020 census, although he attributed that possibility to the "citizenship question" on the Census.