Edited sentence: All cities and counties are expected to file reports on the above information and sent to Sacramento.California Department of Finance estimates are considered more accurate than US Census Bureau's as they track the state's dynamic and large immigrant population.The population estimates are required by the state budget every year, for allocation purposes.Unlike the Census Bureau, it counts undocumented citizens (detected through elementary school enrollment and drivers license changes), census errors and omissions, city limit changes, new subdivisions, group quarters, in-state and interstate migration, nursing homes, and medi-Cal in addition to all the data the US Census Bureau uses, which include Medicare, birth and death registration, and international migration, and military information