Mono County Courthouse
Why it's listed
Mono County's courthouse in Bridgeport is a two-and-one-half-story wooden building finished in white with red trim, topped by a two-story cupola with a rounded dome. Designed by J. R. Roberts and opened in April 1880 at a cost of $31,000, it sits on hand-hewn local granite foundations and retains many original French hand-rolled glass panes, tall oak and walnut doors, and safe doors cast in St. Louis in 1880. Its Italianate detailing includes bracketed window canopies, engaged columns and quoined corners. The building is described as the second oldest operating courthouse in California and continues to serve its original purpose. Its history is also unusual: the county's first seat, Aurora, proved to lie inside Nevada after a boundary survey, so records moved to Bridgeport, where an inn served as courthouse until this building opened. Its design reflects the prosperity that the Bodie gold mines brought to the region.
Significance in brief: The nomination calls it the second oldest operating courthouse in California, still serving its original purpose. It is described as a rare surviving California Italianate courthouse that reflects the wealth of the Bodie gold mines. Mono County is also noted as likely the only county in the United States whose first county seat lay in another county and another state.
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 74000536, listed March 1, 1974. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | Main St., Bridgeport |
|---|---|
| County | Mono County |
| Listed | March 1, 1974 |
| Reference number | 74000536 |
| Resource type | Building |
| Period of significance | 19th Century (opened April 1, 1880) |
| Architect / builder | Designed by J. R. Roberts; contract sold at auction July 3, 1880 to Charles Anton, Samuel Hopkins and James Cain |
| Architectural style | Victorian; described by architectural historian David Gebhard as California Italianate |
| Areas of significance | Politics/Government, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Good condition; occupied, in government use and still serving as the county courthouse; altered (early lighting fixtures removed). |
| Acreage | 1.5 |
| Coordinates | 38.25610, -119.22846 (NPS GIS) |
What listing means for this property
For a publicly owned building or structure, listing mainly matters when federal funds, permits or licences are involved: projects then go through Section 106 review so effects on the property are considered. Listing also strengthens applications for preservation grants and, for leased income-producing uses, can enable the federal rehabilitation tax credit.
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 74000536.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q15255233
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.