King Ranch
Why it's listed
King Ranch is a vast cattle operation in south Texas, covering parts of Nueces, Kenedy, Kleberg and Willacy Counties, with its business offices in Kingsville. Richard King founded it in 1852 by buying a 75,000-acre Spanish land grant on Santa Gertrudis Creek. After a partnership with Mifflin Kenedy from 1860 to 1868, the ranch passed through Robert J. Kleberg and his son, and later to King Ranch, Inc. Its herd began with Longhorns from Mexico, and Shorthorns and Herefords were added from 1893. Brahma cattle bred with Shorthorns produced the Santa Gertrudis breed. By the mid-20th century the ranch held about 1,225,000 acres, making it the largest in the country. The original headquarters area lies two miles west of Kingsville. The first ranch house burned in 1911, and the present white brick mansion and most nearby structures date from 1912. The 19th-century commissary survives. The ranch remains a working business in private ownership and has a marked loop tour for visitors.
Significance in brief: The nomination ranks King Ranch among the most outstanding and best-known cattle enterprises of the Southwestern cattle frontier. It grew from the original grant to about 1,225,000 acres, the largest ranch in the United States by the mid-20th century. Its breeding work with Shorthorn and Brahma cattle produced the Santa Gertrudis breed.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 66000820, listed October 15, 1966. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | Kingsville and its environs, Kingsville and |
|---|---|
| County | Kenedy County |
| Listed | October 15, 1966 |
| Reference number | 66000820 |
| Resource type | District |
| Areas of significance | Agriculture, Exploration/Settlement |
| Level of significance | National |
| National Historic Landmark | Yes, designated November 5, 1961 |
| Status (as stated in the nomination) | Operating ranch in private ownership; condition rated good in 1958 and excellent in 1981, with the headquarters area maintained and the commissary being restored. A self-guided loop tour is offered to visitors. |
| Acreage | 1225000 |
| Coordinates | 27.52221, -97.90930 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 66000820.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6411977
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.