Lincoln Acres is an unincorporated community of San Diego County located wholly within the boundaries of the incorporated city of National City. It has a population of approximately 2,100 residents, and residents may keep livestock. Lincoln Acres has a fire station and library. The community relies on the San Diego County Sheriff's Department to provide police protection. Sheriff Deputies from the Imperial Beach station police the neighborhood. Even though it has a post office, it shares its ZIP code, 91950, with National City. However the United States Postal Service lists the zip code 91947 as being located within Lincoln Acres for P.O. Box use. The community is in area code 619. History Lincoln Acres was first settled during the Great Depression, mainly by farmers from the Midwest, to have small farms. It was named after Abraham Lincoln. Over time the farms became residential homes, and the population became mostly Mexican Americans. During World War II, there was one combat casualty from Lincoln Acres, Jerry Lee O'Hagen. In 1967, there was an unsuccessful attempt to annex Lincoln Acres into National City for zoning and sewer system purposes. In 1981, the community was considered as a potential location for adult businesses displaced by redevelopment of downtown National City to relocate. By 1975, the community had largely expanded to its limits, and only saw an 11% growth of population from 1975 to 1995. In 2019, a county commissioned approved the annexation of a quarter acre, adjacent to the Interstate 805 and California State Route 54 interchange, of Lincoln Acres into the City of National City. Significant organizations and properties La Vista Cemetery The largest plot of land in Lincoln Acres is filled by the La Vista Cemetery. The cemetery has a large section that is considered an endowed cemetery, meaning money is set aside for regular maintenance and upkeep, and a non-endowed side, known as Rest Haven, where no money is set aside for maintenance, and therefore the families of those buried there are responsible for maintaining their grave sites. This means that in the Rest Haven side, there are tilted headstones and old, off-kilter wooden crosses marking the graves. People construct their own headstones for the inexpensive plots, creating a personal, individual experience for family and friends of those interred there. Library The first library in the community began in 1940. Lincoln Acres is served by a branch of the San Diego