Rochester, WA Demographics

A map of Rochester's Population by Race

Rochester, Washington has an estimated population of 5,834, a decrease from the 6,064 recorded in the 2020 Census. The population is 69.5% White, 20.3% Hispanic, 3.7% Multiracial, 3.3% Asian, 3.3% Native American/Other, and 0.0% Black. This demographic dot map shows the population of Rochester, with one dot drawn for each person counted by the Census, color-coded by race.

Rochester has become considerably more 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 Rochester, that probability was 37.7% in 2020 and 47.3% in the most recent ACS estimates.

Rochester is ranked the 185th 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). Rochester was ranked the 177th most populous place in the 2020 Census.

Rochester's White Population

4,054 residents of Rochester, or 69.5% of the population, identify as White. The share of White residents in Rochester is higher than in Washington overall, where 63.1% of the population is White. Rochester ranks 337th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's White population has declined by an estimated 14.0%. White residents' share of Rochester's population has decreased from 77.8% to 69.5%.

Rochester is more White than neighboring Grand Mound (61% White). Rochester is less White than neighboring Fords Prairie (79.5% White), Centralia (72.4% White), Oakville (70.3% White), and Chehalis (76.6% White).

Rochester's Black Population

0 residents of Rochester, or 0.0% of the population, identify as Black. The share of Black residents in Rochester is slightly lower than in Washington overall, where 3.8% of the population is Black. Rochester ranks 351st statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's Black population has declined by an estimated 100.0%. Black residents' share of Rochester's population has decreased from 0.5% to 0.0%.

Rochester is less Black than neighboring Grand Mound (1.6% Black), Fords Prairie (1.1% Black), Centralia (1.1% Black), Oakville (0.3% Black), and Chehalis (1% Black).

Rochester's Asian Population

193 residents of Rochester, or 3.3% of the population, identify as Asian. The share of Asian residents in Rochester is lower than in Washington overall, where 9.7% of the population is Asian. Rochester ranks 381st statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's Asian population has grown by an estimated 206.3%. Asian residents' share of Rochester's population has increased from 1.0% to 3.3%.

Rochester is more Asian than neighboring Grand Mound (1.1% Asian), Centralia (1.6% Asian), Oakville (0.9% Asian), and Chehalis (0.5% Asian). Rochester is less Asian than neighboring Fords Prairie (3.5% Asian).

Rochester's Hispanic Population

1,182 residents of Rochester, or 20.3% of the population, identify as Hispanic. The share of Hispanic residents in Rochester is higher than in Washington overall, where 14.4% of the population is Hispanic. Rochester ranks 209th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's Hispanic population has grown by an estimated 76.9%. Hispanic residents' share of Rochester's population has increased from 11.0% to 20.3%.

Rochester is more Hispanic than neighboring Fords Prairie (9% Hispanic), Centralia (19.7% Hispanic), Oakville (9.5% Hispanic), and Chehalis (14.6% Hispanic). Rochester is less Hispanic than neighboring Grand Mound (26.8% Hispanic).

Rochester's Native American/Other Population

190 residents of Rochester, or 3.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Rochester is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Rochester ranks 243rd statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's Native American/Other population has grown by an estimated 39.7%. Native American/Other residents' share of Rochester's population has increased from 2.2% to 3.3%.

Rochester is more Native American/Other than neighboring Fords Prairie (1.4% Native American/Other), Centralia (1.7% Native American/Other), and Chehalis (1.4% Native American/Other). Rochester is less Native American/Other than neighboring Grand Mound (5.7% Native American/Other), and Oakville (6.7% Native American/Other).

Rochester's Multiracial Population

215 residents of Rochester, or 3.7% of the population, identify as Multiracial. The share of Multiracial residents in Rochester is slightly lower than in Washington overall, where 6.8% of the population is Multiracial. Rochester ranks 162nd statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Rochester's Multiracial population has declined by an estimated 52.2%. Multiracial residents' share of Rochester's population has decreased from 7.4% to 3.7%.

Rochester is more Multiracial than neighboring Centralia (3.6% Multiracial). Rochester is less Multiracial than neighboring Fords Prairie (5.5% Multiracial), Oakville (12.3% Multiracial), and Chehalis (5.9% 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.