Tucked up in the foothills, the City of Altadena is in Los Angeles County, California. As an unincorporated and census-designated place, the city is approximately 14 miles from Downtown Los Angeles. Altadena is also north of the City of Pasadena – and as of the 2010 census – has a population of 42,777 residents. The L.A. County Sherriff’s Department operates the Altadena Station in the city. Similarly, the California Highway Patrol also has an office on Windsor Drive in Altadena. The Los Angeles County Department of Health Services operates the Monrovia Health Center, which primarily services Altadena residents.