ZIP Code 95658
About Newcastle
Newcastle is an unincorporated community and census-designated place (CDP) in Placer County, California. Nestled in the Sierra Nevada foothills, Newcastle is located 8 miles (12.9 km) northeast of Rocklin and 31 miles northeast of Sacramento. Newcastle generally has moderate winters and warm summers.
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Area Profile
US Census (ACS 5-year · Gazetteer)
6,197
population
$128,472
median household income
266
people / sq mi
$814,300
median home value
$1,529
median gross rent
48.4
median age
2,511
housing units
2,332
households
23.3
land area (sq mi)