<P> In - N - Out Burger is an American regional chain of fast food restaurants with locations primarily in the American Southwest and Pacific coast . It was founded in Baldwin Park , California in 1948 by Harry Snyder and Esther Snyder . The chain is currently headquartered in Irvine , California and has slowly expanded outside Southern California into the rest of California , as well as into Arizona , Nevada , Utah , Texas , and Oregon . The current owner is Lynsi Snyder , the Snyders ' only grandchild . </P>
<P> In - N - Out Burger is an American regional chain of fast food restaurants with locations primarily in the American Southwest and Pacific coast . It was founded in Baldwin Park , California in 1948 by Harry Snyder and Esther Snyder . The chain is currently headquartered in Irvine , California and has slowly expanded outside Southern California into the rest of California , as well as into Arizona , Nevada , Utah , Texas , and Oregon . The current owner is Lynsi Snyder , the Snyders ' only grandchild . </P>
where did the first in n out open
where did the first in n out open
Baldwin Park , California
Baldwin Park , California