Castle Rock, WA Demographics
A map of Castle Rock's Population by Race
Castle Rock, Washington has an estimated population of 2,217, a decrease from the 2,446 recorded in the 2020 Census. The population is 89.3% White, 3.7% Native American/Other, 2.8% Hispanic, 2.4% Multiracial, 1.4% Asian, and 0.4% Black. This demographic dot map shows the population of Castle Rock, with one dot drawn for each person counted by the Census, color-coded by race.
Castle Rock has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Castle Rock, that probability was 28.3% in 2020 and 20.0% in the most recent ACS estimates.
Castle Rock is ranked the 300th most populous place in Washington, out of 639 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). Castle Rock was ranked the 289th most populous place in the 2020 Census.
Castle Rock's White Population
1,979 residents of Castle Rock, or 89.3% of the population, identify as White. The share of White residents in Castle Rock is significantly higher than in Washington overall, where 63.1% of the population is White. Castle Rock ranks 167th statewide in terms of White residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's White population has declined by an estimated 3.9%. White residents' share of Castle Rock's population has increased from 84.2% to 89.3%.
Castle Rock is more White than neighboring Lexington (86.9% White), Beacon Hill (78.3% White), Longview Heights (74.1% White), Longview (77.2% White), and Vader (85.8% White).
Castle Rock's Black Population
9 residents of Castle Rock, or 0.4% of the population, identify as Black. The share of Black residents in Castle Rock is slightly lower than in Washington overall, where 3.8% of the population is Black. Castle Rock ranks 330th statewide in terms of Black residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's Black population has declined by an estimated 35.7%. Black residents' share of Castle Rock's population has remained roughly unchanged at 0.4%.
Castle Rock is more Black than neighboring Lexington (0% Black), Beacon Hill (0% Black), Longview Heights (0% Black), and Vader (0% Black). Castle Rock is less Black than neighboring Longview (0.6% Black).
Castle Rock's Asian Population
31 residents of Castle Rock, or 1.4% of the population, identify as Asian. The share of Asian residents in Castle Rock is lower than in Washington overall, where 9.7% of the population is Asian. Castle Rock ranks 494th statewide in terms of Asian residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's Asian population has grown by an estimated 158.3%. Asian residents' share of Castle Rock's population has increased from 0.5% to 1.4%.
Castle Rock is more Asian than neighboring Beacon Hill (0% Asian), and Vader (0.3% Asian). Castle Rock is less Asian than neighboring Lexington (3.1% Asian), Longview Heights (2% Asian), and Longview (1.7% Asian).
Castle Rock's Hispanic Population
63 residents of Castle Rock, or 2.8% of the population, identify as Hispanic. The share of Hispanic residents in Castle Rock is considerably lower than in Washington overall, where 14.4% of the population is Hispanic. Castle Rock ranks 384th statewide in terms of Hispanic residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's Hispanic population has declined by an estimated 58.8%. Hispanic residents' share of Castle Rock's population has decreased from 6.3% to 2.8%.
Castle Rock is less Hispanic than neighboring Lexington (4.4% Hispanic), Beacon Hill (20.1% Hispanic), Longview Heights (13.8% Hispanic), Longview (12.6% Hispanic), and Vader (5.4% Hispanic).
Castle Rock's Native American/Other Population
81 residents of Castle Rock, or 3.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Castle Rock is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Castle Rock ranks 162nd statewide in terms of Native American/Other residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's Native American/Other population has grown by an estimated 14.1%. Native American/Other residents' share of Castle Rock's population has increased from 2.9% to 3.7%.
Castle Rock is more Native American/Other than neighboring Lexington (0% Native American/Other), Beacon Hill (0% Native American/Other), Longview (1.1% Native American/Other), and Vader (0.3% Native American/Other). Castle Rock is less Native American/Other than neighboring Longview Heights (4% Native American/Other).
Castle Rock's Multiracial Population
54 residents of Castle Rock, or 2.4% of the population, identify as Multiracial. The share of Multiracial residents in Castle Rock is slightly lower than in Washington overall, where 6.8% of the population is Multiracial. Castle Rock ranks 410th statewide in terms of Multiracial residents as a share of the population, out of 639 places.
Since the 2020 Census, Castle Rock's Multiracial population has declined by an estimated 60.3%. Multiracial residents' share of Castle Rock's population has decreased from 5.6% to 2.4%.
Castle Rock is more Multiracial than neighboring Beacon Hill (1.6% Multiracial). Castle Rock is less Multiracial than neighboring Lexington (5.6% Multiracial), Longview Heights (6.2% Multiracial), Longview (6.8% Multiracial), and Vader (8.3% 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.