Creator
- San Mateo County (Calif.)2
- Santa Clara County (Calif.)2
- Alameda County Registrar of Voters 1
- Butte County (Calif.) -- Geographic Information Systems1
- Fresno County (Calif.). Department of Public Works and Planning1
- Napa County (Calif.)1
- Santa Cruz County (Calif.) -- Assessor's Office1
- Shasta County Assessor Department1
- Solano County1
- Stanislaus LAFCO1