Blood & Biohazard Cleanup Near Downtown Bootjack Bootjack, CA

Bootjack is an unincorporated community and census-designated place in Mariposa County, in the western Sierra Nevada foothills of California.

The 2020 United States census reported Bootjack's population as 661.

Bootjack's counted population has fallen sharply across recent censuses — 1,588 in 2000 and 960 in 2010 — largely because the Census Bureau reduced the area of the CDP, which shrank from 7.06 square miles in 2010 to 3.86 square miles in 2020.

By the late 20th century, Bootjack was one of the more populous areas of Mariposa County despite never incorporating, and in 2000 its population actually surpassed that of Mariposa, the county seat.

Mariposa County is one of only three counties in California with no incorporated cities or towns at all, so Bootjack is governed entirely by the county.

Bootjack's median resident age was 49.2 years in the 2010 census, older than the California average.

Bootjack does not have its own ZIP code — it shares 95338 with Mariposa — and it is served by Mariposa County Fire Department Company 37, the Bootjack station.