The seamless, county-wide addresses layer was developed from a combination of sources including official County and City addresses, address aliases assigned by local agencies or the property owner, and common place names assigned by local agencies and/or commonly used by the public. This layer provides point locations, usually associated with known residences or businesses where known, or at the center of a parcel if the address location is unknown. This data may include multiple addresses on a single parcel such as in the case of an apartment building, business complex, or additional units where there would exist multiple units or office spaces on a single parcel each necessitating an individual address. It may also include situations where an address has been assigned, but no structures exist. Each address is assigned by the agency jurisdiction under which the parcel is found, either unincorporated County or incorporated city government. The Information Systems Department/Geographic Information Systems (ISD/GIS) staff obtain address updates, aliases, and common place names from SCPSC and from official notices provided by local jurisdictions. The seamless county-wide addresses layer is updated as notices are received, typically daily, and the seamless place layer is updated and published to the Internet on a weekly basis.

The seamless, county-wide addresses layer was developed from a combination of sources including official County and City addresses, address aliases assigned by local agencies or the property owner, and common place names assigned by local agencies and/or commonly used by the public. This layer provides point locations, usually associated with known residences or businesses where known, or at the center of a parcel if the address location is unknown. This data may include multiple addresses on a single parcel such as in the case of an apartment building, business complex, or additional units where there would exist multiple units or office spaces on a single parcel each necessitating an individual address. It may also include situations where an address has been assigned, but no structures exist. Each address is assigned by the agency jurisdiction under which the parcel is found, either unincorporated County or incorporated city government. The Information Systems Department/Geographic Information Systems (ISD/GIS) staff obtain address updates, aliases, and common place names from SCPSC and from official notices provided by local jurisdictions. The seamless county-wide addresses layer is updated as notices are received, typically daily, and the seamless place layer is updated and published to the Internet on a weekly basis.