Newcastle, CA Demographics

A map of Newcastle's Population by Race

Newcastle, California has an estimated population of 1,585, a large increase from the 1,321 recorded in the 2020 Census. The population is 76.2% White, 15.8% Hispanic, 6.0% Multiracial, 1.0% Black, 0.8% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Newcastle, with one dot drawn for each person counted by the Census, color-coded by race.

Newcastle has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Newcastle, that probability was 33.3% in 2020 and 39.1% in the most recent ACS estimates.

Newcastle is ranked the 951st most populous place in California, out of 1,618 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Newcastle was ranked the 998th most populous place in the 2020 Census.

Newcastle's White Population

1,208 residents of Newcastle, or 76.2% of the population, identify as White. The share of White residents in Newcastle is significantly higher than in California overall, where 33.8% of the population is White. Newcastle ranks 207th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's White population has grown by an estimated 13.1%. White residents' share of Newcastle's population has decreased from 80.8% to 76.2%.

Newcastle is more White than neighboring Auburn (75.8% White), North Auburn (61.6% White), Loomis (71.8% White), and Granite Bay (74.2% White). Newcastle is less White than neighboring Penryn (80% White).

Newcastle's Black Population

16 residents of Newcastle, or 1.0% of the population, identify as Black. The share of Black residents in Newcastle is slightly lower than in California overall, where 5.2% of the population is Black. Newcastle ranks 1031st statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's Black population has grown by an estimated 128.6%. Black residents' share of Newcastle's population has increased from 0.5% to 1.0%.

Newcastle is more Black than neighboring Penryn (0% Black), Auburn (0.6% Black), North Auburn (0.9% Black), and Loomis (0.1% Black).

Newcastle's Asian Population

12 residents of Newcastle, or 0.8% of the population, identify as Asian. The share of Asian residents in Newcastle is considerably lower than in California overall, where 15.3% of the population is Asian. Newcastle ranks 1072nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's Asian population has declined by an estimated 25.0%. Asian residents' share of Newcastle's population has remained roughly unchanged at 0.8%.

Newcastle is less Asian than neighboring Penryn (2.9% Asian), Auburn (2% Asian), North Auburn (2.8% Asian), Loomis (3.4% Asian), and Granite Bay (9.7% Asian).

Newcastle's Hispanic Population

250 residents of Newcastle, or 15.8% of the population, identify as Hispanic. The share of Hispanic residents in Newcastle is significantly lower than in California overall, where 40.2% of the population is Hispanic. Newcastle ranks 1298th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's Hispanic population has grown by an estimated 106.6%. Hispanic residents' share of Newcastle's population has increased from 9.2% to 15.8%.

Newcastle is more Hispanic than neighboring Penryn (6.8% Hispanic), Auburn (11.6% Hispanic), Loomis (11.1% Hispanic), and Granite Bay (8.7% Hispanic). Newcastle is less Hispanic than neighboring North Auburn (27.1% Hispanic).

Newcastle's Native American/Other Population

4 residents of Newcastle, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Newcastle is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Newcastle ranks 951st statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's Native American/Other population has declined by an estimated 71.4%. Native American/Other residents' share of Newcastle's population has decreased from 1.1% to 0.3%.

Newcastle is more Native American/Other than neighboring Penryn (0% Native American/Other), and Loomis (0.1% Native American/Other). Newcastle is less Native American/Other than neighboring Auburn (0.6% Native American/Other), North Auburn (1.6% Native American/Other), and Granite Bay (1.4% Native American/Other).

Newcastle's Multiracial Population

95 residents of Newcastle, or 6.0% of the population, identify as Multiracial. The share of Multiracial residents in Newcastle is comparable to the share in California overall, where 4.4% of the population is Multiracial. Newcastle ranks 233rd statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Newcastle's Multiracial population has remained roughly the same. Multiracial residents' share of Newcastle's population has decreased from 7.2% to 6.0%.

Newcastle is more Multiracial than neighboring Granite Bay (5% Multiracial). Newcastle is less Multiracial than neighboring Penryn (10.3% Multiracial), Auburn (9.4% Multiracial), and Loomis (13.5% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.