Newcastle, ME Demographics

A map of Newcastle's Population by Race

Newcastle, Maine has an estimated population of 664, a less than 1% change from the 660 recorded in the 2020 Census. The population is 95.3% White, 2.4% Hispanic, 1.8% Multiracial, 0.5% Native American/Other, 0.0% Black, and 0.0% Asian. 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 is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Maine 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 9.1% in 2020 and 9.0% in the most recent ACS estimates.

Newcastle is ranked the 122nd most populous place in Maine, out of 155 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 127th most populous place in the 2020 Census.

Newcastle's White Population

633 residents of Newcastle, or 95.3% of the population, identify as White. The share of White residents in Newcastle is higher than in Maine overall, where 89.9% of the population is White. Newcastle ranks 14th statewide in terms of White residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's White population has remained roughly the same. White residents' share of Newcastle's population has remained roughly unchanged at 95.3%.

Newcastle is more White than neighboring Wiscasset (90.8% White), and Boothbay Harbor (87.5% White). Newcastle is less White than neighboring Damariscotta (98.2% White), Waldoboro (97.3% White), and Richmond (98.9% White).

Newcastle's Black Population

0 residents of Newcastle, or 0.0% of the population, identify as Black. The share of Black residents in Newcastle is comparable to the share in Maine overall, where 1.8% of the population is Black. Newcastle ranks 58th statewide in terms of Black residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's Black population has declined by an estimated 100.0%. Black residents' share of Newcastle's population has decreased from 0.8% to 0.0%.

Newcastle is less Black than neighboring Wiscasset (3.7% Black), and Boothbay Harbor (1.5% Black).

Newcastle's Asian Population

0 residents of Newcastle, or 0.0% of the population, identify as Asian. The share of Asian residents in Newcastle is comparable to the share in Maine overall, where 1.1% of the population is Asian. Newcastle ranks 75th statewide in terms of Asian residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's Asian population has declined by an estimated 100.0%. Asian residents' share of Newcastle's population has decreased from 0.8% to 0.0%.

Newcastle is less Asian than neighboring Wiscasset (1.8% Asian), and Boothbay Harbor (5.7% Asian).

Newcastle's Hispanic Population

16 residents of Newcastle, or 2.4% of the population, identify as Hispanic. The share of Hispanic residents in Newcastle is comparable to the share in Maine overall, where 2.2% of the population is Hispanic. Newcastle ranks 111th statewide in terms of Hispanic residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's Hispanic population has grown by an estimated 100.0%. Hispanic residents' share of Newcastle's population has increased from 1.2% to 2.4%.

Newcastle is more Hispanic than neighboring Damariscotta (0% Hispanic), Wiscasset (0% Hispanic), Waldoboro (0% Hispanic), Boothbay Harbor (1.8% Hispanic), and Richmond (0% Hispanic).

Newcastle's Native American/Other Population

3 residents of Newcastle, or 0.5% 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 Maine overall, where 0.7% of the population is Native American/Other. Newcastle ranks 136th statewide in terms of Native American/Other residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's Native American/Other population has grown by an estimated 50.0%. Native American/Other residents' share of Newcastle's population has remained roughly unchanged at 0.5%.

Newcastle is more Native American/Other than neighboring Wiscasset (0% Native American/Other), Waldoboro (0% Native American/Other), Boothbay Harbor (0.3% Native American/Other), and Richmond (0% Native American/Other). Newcastle is less Native American/Other than neighboring Damariscotta (0.7% Native American/Other).

Newcastle's Multiracial Population

12 residents of Newcastle, or 1.8% of the population, identify as Multiracial. The share of Multiracial residents in Newcastle is slightly lower than in Maine overall, where 4.2% of the population is Multiracial. Newcastle ranks 148th statewide in terms of Multiracial residents as a share of the population, out of 155 places.

Since the 2020 Census, Newcastle's Multiracial population has grown by an estimated 9.1%. Multiracial residents' share of Newcastle's population has remained roughly unchanged at 1.8%.

Newcastle is more Multiracial than neighboring Damariscotta (1.1% Multiracial), and Richmond (1.1% Multiracial). Newcastle is less Multiracial than neighboring Wiscasset (3.8% Multiracial), Waldoboro (2.7% Multiracial), and Boothbay Harbor (3.2% 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.