O'Brien is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

Suwannee County Suwannee County is a county located in the north central portion of the state of Florida. As of the 2020 census, the population was 43,474, up from 41,551 in 2010. Its county seat is Live Oak. Suwannee County was a dry county until August 201 ...

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

, United States, located along

U.S. Route 129 U.S. Route 129 (US 129) is an Auxiliary U.S. Route, auxiliary route of U.S. Route 29, US 29, which it Intersection (road), intersects in Athens, Georgia. US 129 currently runs for from an intersection with U.S. Route 19 in Florid ...

at the intersection of County Road 349, north of Branford. O'Brien has a

post office A post office is a public facility and a retailer that provides mail services, such as accepting letter (message), letters and parcel (package), parcels, providing post office boxes, and selling postage stamps, packaging, and stationery. Post o ...

with ZIP code 32071.ZIP Code Lookup
/ref> O’Brien was established in 1880, and was originally known as OBrien Station as it was on the railroad route between Live Oak and Branford.

References

Unincorporated communities in Suwannee County, Florida Unincorporated communities in Florida Former census-designated places in Florida {{SuwanneeCountyFL-geo-stub