---
title: "List Covered Counties"
method: GET
path: "/api/v1/internal/parcel-coverage/"
tags: ["internal", "parcel-coverage"]
---

# List Covered Counties

`GET /api/v1/internal/parcel-coverage/`

Return every covered county for the internal coverage map.

## Response `200`

Successful Response

- ParcelCoverageResponse — Every covered county, for the internal coverage choropleth.
  - `counties` CoveredCounty[], required
    - `geoid` string, required
    - `statefp` string, required
    - `countyfp` string, required
    - `name` string, nullable
    - `owning_source` string, nullable
    - `source_kind` 'arcgis_curated' | 'geoparquet_native' | 'socrata' | 'statewide_arcgis' | 'statewide_bulk' | 'bq_state_export' — Provenance of a county's parcels — which producer owns it. The first five are *supplement* kinds (per-county gov pulls / statewide layers), which drive the supplement source set + every source fence; ``bq_state_export`` is the default 50-state BigQuery bulk (Regrid) ingest, which the runtime serves directly (not a supplement) and the fences ignore. A typo'd value would mis-fence and double-source, so it's CHECK-constrained to fail closed.
    - `source_class` 'authoritative' | 'regrid' | 'no_geometry' | 'point_fallback' — Geometry-provenance tier in the coverage lattice, independent of join quality (that's the match rates). ``REGRID`` / ``NO_GEOMETRY`` describe the classes a county could be parked at, and give the coverage recorder's cross-county views a uniform column. ``POINT_FALLBACK`` is the disclosed floor for a must-pay county: its parcels land as address points from the property-record delivery (``source_kind`` NULL — that delivery is not a geometry source, and NULL keeps the county invisible to the supplement/fence readers).
    - `batchdata_match_rate` number, nullable
    - `apn_match_rate` number, nullable
    - `spatial_match_rate` number, nullable
    - `bd_rows` integer, nullable
    - `measured_at` string, date-time, nullable
    - `last_refreshed_at` string, date-time, nullable

---

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