Addresses (MAF): Seattle Citywide Address Points with Validation Status

Seattle address points from the Master Address File (MAF), containing house numbers, street names, and validation statuses. Attributes include MAILUSECODE for utility billing suitability and DCLUSTAT for address establishment status. Data is refreshed daily by the City of Seattle and was last updated on March 22, 2026.

Use Cases

• Validate mailing addresses for service delivery based on the MAILUSECODE attribute.
• Assess address establishment and lifecycle based on DCLUSTAT status values like 'FIELD VERIFIED' or 'RETIRED'.
• Map citywide address points for spatial analysis, with display rules based on zoom level.
• Integrate address data with utility billing systems using the source agency identifiers (SOURCENAME).

Strengths

• Contains specific validation fields (MAILUSECODE, DCLUSTAT) indicating address suitability and lifecycle.
• Data is refreshed daily, suggesting regular maintenance.
• Includes metadata on source agency (DPD, SPU) and creation dates (DCLUSTATDT).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The DCLUSTAT 'FIELD VERIFIED' status is noted as not reliably assigned or a guaranteed indicator of correctness.

Provenance

Source

City of Seattle, likely from Department of Planning and Development (DPD) and Seattle Public Utilities (SPU).

Collection Method

Aggregated from agency systems (TRANSPO.MAFDAP_PV), with initial records potentially from King County Assessor data.

Time Range

null

Freshness

Data refreshed daily; last updated 2026-03-22.

Geography

City of Seattle, Washington, USA.