Hillsborough, Residential town in San Mateo County, California, US
Hillsborough extends across 6.2 square miles of land on the San Francisco Peninsula, bordered by Burlingame, San Mateo, and Interstate 280.
The territory, part of Rancho San Mateo granted to Cayetano Arenas in 1846, was purchased by William Davis Merry Howard before incorporation in 1910.
The town remained exclusively residential with no commercial zones, maintaining strict zoning laws requiring minimum half-acre lots and 2,500-square-foot houses.
The Town Hall at 1600 Floribunda Avenue operates Monday through Thursday from 8:00 am to 5:00 pm and Friday from 8:00 am to noon.
Three streams flow through the area: San Mateo Creek, Cherry Canyon Creek, and Sanchez Creek, supporting California oak woodlands and San Mateo woolly sunflowers.
Location: San Mateo County
Website: https://hillsborough.net
GPS coordinates: 37.56028,-122.35639
Latest update: May 26, 2025 20:52
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