Newcastle is a CDP located in Placer County, California. Newcastle has a 2025 population of 1,570 . Newcastle is currently growing at a rate of 1.49% annually and its population has increased by 15.44% since the most recent census, which recorded a population of 1,360 in 2020.
The average household income in Newcastle is $126,036 with a poverty rate of 12.11%. The median age in Newcastle is 42.7 years: 40.5 years for males, and 50 years for females. For every 100 females there are 102.5 males.
Data after 2023 is projected based on recent change
The racial composition of Newcastle includes 89.02% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
White (89.02%)
Two or more races (6.52%)
Black or African American (1.38%)
Other race (1.25%)
Asian (1.19%)
Native American (0.63%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,419 | 89.02% |
| Two or more races | 104 | 6.52% |
| Black or African American | 22 | 1.38% |
| Other race | 20 | 1.25% |
| Asian | 19 | 1.19% |
| Native American | 10 | 0.63% |
Married
Widowed
Divorced
Separated
Never Married
Newcastle's average per capita income is $57,007. Household income levels show a median of $110,446. The poverty rate stands at 12.11%.
Name | Median | Mean |
|---|---|---|
| Families | $167,813 | $165,980 |
| Married Families | $138,542 | - |
| Households | $110,446 | $126,036 |
| Non Families | $38,828 | $54,806 |
Average Income
Median Household Income
Poverty Rate