Newcastle, WY Demographics

A map of Newcastle's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	2,913	2,893	87.0%	85.7%
Hispanic	217	225	6.5%	6.7%
Multiracial	128	129	3.8%	3.8%
Native American/Other	89	87	2.7%	2.6%
Black	1	22	0.0%	0.7%
Asian	0	18	0.0%	0.5%

Newcastle, Wyoming has an estimated population of 3,348, a less than 1% change from the 3,374 recorded in the 2020 Census. The population is 87.0% White, 6.5% Hispanic, 3.8% Multiracial, 2.7% 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 has become less racially diverse since the 2020 Census. It is considerably less diverse than Wyoming 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 25.8% in 2020 and 23.7% in the most recent ACS estimates.

Newcastle is ranked the 24th most populous place in Wyoming, out of 205 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 24th most populous place in the 2020 Census.

Newcastle's White Population

2,913 residents of Newcastle, or 87.0% of the population, identify as White. The share of White residents in Newcastle is higher than in Wyoming overall, where 81.4% of the population is White. Newcastle ranks 123rd statewide in terms of White residents as a share of the population, out of 205 places.

Since the 2020 Census, Newcastle's White population has remained roughly the same. White residents' share of Newcastle's population has increased from 85.7% to 87.0%.

Newcastle is more White than neighboring Hill View Heights (76.7% White), Upton (84.5% White), and Custer (86.4% White). Newcastle is less White than neighboring Osage (100% White), and Sundance (94.6% White).

Newcastle's Black Population

1 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 Wyoming overall, where 0.8% of the population is Black. Newcastle ranks 33rd statewide in terms of Black residents as a share of the population, out of 205 places.

Since the 2020 Census, Newcastle's Black population has declined by an estimated 95.5%. Black residents' share of Newcastle's population has decreased from 0.7% to 0.0%.

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 Wyoming overall, where 0.8% of the population is Asian. Newcastle ranks 67th statewide in terms of Asian residents as a share of the population, out of 205 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 0.5% to 0.0%.

Newcastle is less Asian than neighboring Custer (1.2% Asian).

Newcastle's Hispanic Population

217 residents of Newcastle, or 6.5% of the population, identify as Hispanic. The share of Hispanic residents in Newcastle is slightly lower than in Wyoming overall, where 10.7% of the population is Hispanic. Newcastle ranks 83rd statewide in terms of Hispanic residents as a share of the population, out of 205 places.

Since the 2020 Census, Newcastle's Hispanic population has declined by an estimated 3.6%. Hispanic residents' share of Newcastle's population has remained roughly unchanged at 6.5%.

Newcastle is more Hispanic than neighboring Osage (0% Hispanic), Sundance (0.5% Hispanic), and Custer (2.2% Hispanic). Newcastle is less Hispanic than neighboring Hill View Heights (13.3% Hispanic), and Upton (8% Hispanic).

Newcastle's Native American/Other Population

89 residents of Newcastle, or 2.7% 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 Wyoming overall, where 2.4% of the population is Native American/Other. Newcastle ranks 25th statewide in terms of Native American/Other residents as a share of the population, out of 205 places.

Since the 2020 Census, Newcastle's Native American/Other population has grown by an estimated 2.3%. Native American/Other residents' share of Newcastle's population has remained roughly unchanged at 2.7%.

Newcastle is more Native American/Other than neighboring Hill View Heights (0% Native American/Other), Osage (0% Native American/Other), Upton (1.9% Native American/Other), and Sundance (0.3% Native American/Other). Newcastle is less Native American/Other than neighboring Custer (3.2% Native American/Other).

Newcastle's Multiracial Population

128 residents of Newcastle, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Newcastle is comparable to the share in Wyoming overall, where 4% of the population is Multiracial. Newcastle ranks 91st statewide in terms of Multiracial residents as a share of the population, out of 205 places.

Since the 2020 Census, Newcastle's Multiracial population has remained roughly the same. Multiracial residents' share of Newcastle's population has remained roughly unchanged at 3.8%.

Newcastle is more Multiracial than neighboring Osage (0% Multiracial). Newcastle is less Multiracial than neighboring Hill View Heights (10% Multiracial), Upton (5.6% Multiracial), Sundance (4.5% Multiracial), and Custer (6.9% 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.