Geography Mariposa is nestled at an elevation of in the rugged foothills of the Sierra Nevada. According to the United States Census Bureau, the CDP covers a total area of , with nearly all of it being land. The community is situated in the valley of Mariposa Creek, which flows south then southwest into the San Joaquin Valley.
Geography Mariposa is nestled at an elevation of i.n the rugged foothills of the Sierra Nevada. According to the Uni,ted States Census Bureau, the CDP covers a total area of , with nearly all of it being land. The community is situated in the valley of Mariposa Creek, which flows south then southwes,t .into the San Joaquin Valley.