Datasets / Texas county clerk index

Texas county clerk index

The recorded instrument index for Texas counties: what was recorded, when, between whom and against what land description.

Index rows: 93,880,858
Coverage: Texas, 144 counties
Latest file date: 2026-10-01
Offered: by county, on request

What it is

An index row is the clerk record of an instrument: type, file date, book and page or instrument number, grantors and grantees, and the land description as indexed. It is what a title search starts from, delivered as rows rather than a search screen.

Offered county by county on request, under use terms in the written scope. Party names are personal data; deliveries of index rows carry use limits.

Delivery

API: filter by county in your scope, file date, instrument type or update date; JSON pages with a cursor.
Bulk files: Parquet, CSV or JSONL, one file set per county in your scope, with a manifest of row counts and checksums.
Agent endpoint: a search tool limited to the counties in your scope, keyed per agent.

All three are set up for you after the scope is agreed. Read the docs.

Coverage by state

93,880,858 index rows across 14 era tables of ds9_courthouse_enhancedclerks, Texas only. The oldest era table covers the 1800s to 1977. 69,534 rows carry a file date before 1859 or after 2026-10-07 (keying errors in the source) and are left out of the date range. The newest era table was last built 2026-10-06.

Texas county clerk index, measured 2026-10-07
State	Index rows	Counties	File dates
Texas	93,880,858	144	1800s to 2026-10-01

Source: our DS9 silver lakehouse (Enverus feeds of state regulatory and county clerk records), measured 2026-10-07.

County names and per-county counts are not published here. Some counties are held back and are not offered; the written scope names what you can receive.

Sample record and response

SYNTHETIC record. Made-up county, parties and numbers in the real field layout. No real index row is shown on this site.

{
  "County": "SAMPLE COUNTY (TX)",
  "State": "TX",
  "InstrumentNumber": "SYN-2024-000123",
  "FileDate": "2024-03-14",
  "InstrumentDate": "2024-02-28",
  "InstrumentType": "MINERAL DEED",
  "BookType": "OPR",
  "Volume": "9999",
  "Page": "101",
  "Grantor": [
    "EXAMPLE, PAT (SYNTHETIC)"
  ],
  "Grantee": [
    "SAMPLE MINERALS LLC (SYNTHETIC)"
  ],
  "LandDescriptions": [
    {
      "AbstractNumber": "A-0000",
      "Survey": "SAMPLE SURVEY",
      "Section": null,
      "Block": null,
      "Acres": 80.0
    }
  ],
  "PriorReferences": [
    {
      "Volume": "9998",
      "Page": "55"
    }
  ],
  "RecordId": "synthetic-0001"
}

Response shape you receive (available on request; no public endpoint answers today). All values synthetic.

GET /v1/county-index?county=SAMPLE%20COUNTY%20(TX)&file_date_from=2024-01-01

{
  "dataset": "county-index",
  "query": {
    "county": "SAMPLE COUNTY (TX)",
    "file_date_from": "2024-01-01",
    "instrument_type": "MINERAL DEED"
  },
  "as_of": {
    "view_built": "2026-10-06T07:18:07Z",
    "latest_file_date": "2026-10-01"
  },
  "coverage": {
    "state": "TX",
    "county": "SAMPLE COUNTY (TX)",
    "status": "in_scope"
  },
  "provenance": {
    "lakehouse_view": "ds9_courthouse_enhancedclerks",
    "upstream": "Enverus enhanced county clerk index",
    "image": "not delivered; ask in scope"
  },
  "data": [
    {
      "County": "SAMPLE COUNTY (TX)",
      "State": "TX",
      "InstrumentNumber": "SYN-2024-000123",
      "FileDate": "2024-03-14",
      "InstrumentDate": "2024-02-28",
      "InstrumentType": "MINERAL DEED",
      "BookType": "OPR",
      "Volume": "9999",
      "Page": "101",
      "Grantor": [
        "EXAMPLE, PAT (SYNTHETIC)"
      ],
      "Grantee": [
        "SAMPLE MINERALS LLC (SYNTHETIC)"
      ],
      "LandDescriptions": [
        {
          "AbstractNumber": "A-0000",
          "Survey": "SAMPLE SURVEY",
          "Section": null,
          "Block": null,
          "Acres": 80.0
        }
      ],
      "PriorReferences": [
        {
          "Volume": "9998",
          "Page": "55"
        }
      ],
      "RecordId": "synthetic-0001"
    }
  ],
  "next_cursor": "opaque-cursor"
}

Fields in a standard delivery

Standard fields; the view holds more, ask for any by name.
Field	Type	Meaning
`County, State`	text	County name with state suffix, as SAMPLE COUNTY (TX)
`RecordId`	text	Primary key, one row per indexed instrument
`InstrumentNumber, BookType, Volume, Page`	text	Recording reference
`FileDate, InstrumentDate`	date	Recording date and date of the instrument
`InstrumentType`	text	Clerk type label; labels differ by county and era
`Grantor, Grantee`	list	Party names as indexed
`LandDescriptions`	list	Abstract, survey, section, block, lot, subdivision, acres as indexed
`PriorReferences`	list	Earlier instruments the clerk cross-referenced

Known limits

Index rows only: images and OCR text are not part of a standard delivery.
Party lists in an index can be partial; the instrument itself is the authority.
Type labels drift by county and by year; a count by label is not a count of legal effect.
Texas only today. Some Texas counties are held back.

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Name the states, the fields and how often you need a refresh. We reply with a written scope.

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