Newcastle is a CDP located in Placer County, California. Newcastle has a 2026 population of 1,679. Newcastle is currently growing at a rate of 1.7% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median household income in Newcastle is $108,750 with a poverty rate of 12.43%. The median age in Newcastle is 42.3 years: 40.3 years for males, and 53.1 years for females. For every 100 females there are 104.8 males.
Data after 2023 is projected based on recent change
Overall: 42.3 years
Female: 53.1 years
Male: 40.3 years
There are 1,301 adults, (434 of whom are seniors) in Newcastle.
Female: 774 (48.8%)
Male: 811 (51.2%)
The racial composition of Newcastle includes 88.08% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,396 | 88.08% |
| Two or more races | 128 | 8.08% |
| Other race | 24 | 1.51% |
| Black or African American | 16 | 1.01% |
| Asian | 12 | 0.76% |
| Native American | 9 | 0.57% |
Newcastle 's average per capita income is $59,680. Household income levels show a median of $108,750. The poverty rate stands at 12.43%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $180,536 | - |
| Families | $173,404 | $176,558 |
| Households | $108,750 | $128,955 |
| Non Families | $36,875 | $43,827 |
Average Income
Median Household Income
Poverty Rate