According to the United States Census Bureau, the CDP covers an area of 32.1 square miles (83.2 km2), 99.99% of it land, and 0.01% of it water.

The Puma Canyon Ecological Reserve (PCER) consists of over 350 acres in Pinon Hills.

The Reserve is home to abundant and dense woodlands of the state candidate species, the Western Joshua tree.

There were 2,996 housing units at an average density of 93.3 per square mile (36.0/km2), of which 1,987 (77.4%) were owner-occupied, and 579 (22.6%) were occupied by renters.

During 2009–2013, Piñon Hills had a median household income of $35,236, with 15.8% of the population living below the federal poverty line.

Kit Galloway was an American video artist and a pioneer in satellite-based telecommunications art.

He worked exclusively with Sherrie Rabinowitz under the moniker Mobile Image from 1977 onwards.

[7] One of the largest Military Simulation Airsoft events in the United States, Operation Lion Claws, is held in the mountains of Piñon Hills, on the Jubilee Boy Scout Ranch.