The California Employment Development Department (EDD) provides estimates of employment, by place of employment, for California counties. The Bureau of Labor Statistics (BLS) provides estimates of employment for metropolitan areas outside of the Bay Area. Annual employment data are derived from non-seasonally adjusted monthly estimates and thus reflect “annual average employment.” Employment estimates include part-time jobs. If an individual holds two wage and salaried jobs, the estimate will include both jobs. Employment estimates exclude business owners, self-employed people, unpaid workers, and private household workers. Employment estimates outside of the Bay Area do not include farm employment. For the metropolitan area comparison, farm employment was removed from Bay Area employment totals. Both EDD and BLS data report only wage and salary jobs, not the self-employed.
For measuring jobs below the county level, Vital Signs assigns collections of incorporated cities and towns to sub-county areas. For example, the cities of East Palo Alto, Menlo Park, Portola Valley, Redwood City and Woodside are considered South San Mateo County. Because Bay Area counties differ in footprint, the number of sub-counties within each county also vary. For example, San Francisco, Marin, and Napa counties are each treated as a single area while Santa Clara County has four sub-county areas. These sub-county areas differ from sub-regional study areas (SSAs) in Projections 2013 from the Association of Bay Area Governments in several important ways: (1) SSAs typically include one city and expand the boundaries of the city to include adjacent, unincorporated areas; and (2) SSAs disaggregate unincorporated areas of Sonoma County into nine sub-areas.
Estimates for sub-county areas are the sums of city-level estimates from Longitudinal Employer-Household Dynamics (LEHD) data. To correct for limitations in LEHD estimates, the 2014 estimates were increased to 2015 values preserving the spatial distribution of jobs calculated from LEHD. County employment data from EDD was used to adjust the LEHD estimates.
The following incorporated cities and towns are included in each sub-county area:
North Alameda County – Alameda, Albany, Berkeley, Emeryville, Oakland, Piedmont
East Alameda County – Dublin, Livermore, Pleasanton
South Alameda County – Fremont, Hayward, Newark, San Leandro, Union City
Central Contra Costa County – Clayton, Concord, Danville, Lafayette, Martinez, Moraga, Orinda, Pleasant Hill, San Ramon, Walnut Creek
East Contra Costa County – Antioch, Brentwood, Oakley, Pittsburg
West Contra Costa County – El Cerrito, Hercules, Pinole, Richmond, San Pablo
Marin – all incorporated cities and towns
Napa – all incorporated cities and towns
San Francisco – San Francisco
North San Mateo – Brisbane, Colma, Daly City, Millbrae, Pacifica, San Bruno, South San Francisco
Central San Mateo – Belmont, Burlingame, Foster City, Half Moon Bay, Hillsborough, San Carlos, San Mateo
South San Mateo – East Palo Alto, Menlo Park, Portola Valley, Redwood City, Woodside
North Santa Clara – Los Altos, Los Altos Hills, Milpitas, Mountain View, Palo Alto, Santa Clara, Sunnyvale
San Jose – San Jose
Southwest Santa Clara – Campbell, Cupertino, Los Gatos, Monte Sereno, Saratoga
South Santa Clara – Gilroy, Morgan Hill
East Solano – Dixon, Fairfield, Rio Vista, Suisun City, Vacaville
South Solano – Benicia, Vallejo
North Sonoma – Cloverdale, Healdsburg, Windsor
South Sonoma – Cotati, Petaluma, Rohnert Park, Santa Rosa, Sebastopol, Sonoma