Rio Grande, OH Demographics

A map of Rio Grande's Population by Race

Rio Grande, Ohio has an estimated population of 739, a slight increase from the 724 recorded in the 2020 Census. The population is 87.1% White, 7.0% Multiracial, 3.1% Hispanic, 2.6% Black, 0.1% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Rio Grande, with one dot drawn for each person counted by the Census, color-coded by race.

Rio Grande has become less racially diverse since the 2020 Census. It is considerably less diverse than Ohio overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Rio Grande, that probability was 26.8% in 2020 and 23.4% in the most recent ACS estimates.

Rio Grande is ranked the 764th most populous place in Ohio, out of 1,265 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). Rio Grande was ranked the 758th most populous place in the 2020 Census.

Rio Grande's White Population

644 residents of Rio Grande, or 87.1% of the population, identify as White. The share of White residents in Rio Grande is considerably higher than in Ohio overall, where 75.8% of the population is White. Rio Grande ranks 1001st statewide in terms of White residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Rio Grande's White population has grown by an estimated 4.4%. White residents' share of Rio Grande's population has increased from 85.2% to 87.1%.

Rio Grande is more White than neighboring Bidwell (83.3% White), and Vinton (76.9% White). Rio Grande is less White than neighboring Centerville (Thurman) (100% White), Oak Hill (93.7% White), and Gallipolis (89.5% White).

Rio Grande's Black Population

19 residents of Rio Grande, or 2.6% of the population, identify as Black. The share of Black residents in Rio Grande is lower than in Ohio overall, where 12% of the population is Black. Rio Grande ranks 165th statewide in terms of Black residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Rio Grande's Black population has declined by an estimated 56.8%. Black residents' share of Rio Grande's population has decreased from 6.1% to 2.6%.

Rio Grande is more Black than neighboring Centerville (Thurman) (0% Black). Rio Grande is less Black than neighboring Bidwell (10.6% Black), Vinton (15.5% Black), Oak Hill (3.7% Black), and Gallipolis (2.9% Black).

Rio Grande's Asian Population

0 residents of Rio Grande, or 0.0% of the population, identify as Asian. The share of Asian residents in Rio Grande is slightly lower than in Ohio overall, where 2.5% of the population is Asian. Rio Grande ranks 353rd statewide in terms of Asian residents as a share of the population, out of 1,265 places.

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

Rio Grande is less Asian than neighboring Gallipolis (1.3% Asian).

Rio Grande's Hispanic Population

23 residents of Rio Grande, or 3.1% of the population, identify as Hispanic. The share of Hispanic residents in Rio Grande is comparable to the share in Ohio overall, where 4.8% of the population is Hispanic. Rio Grande ranks 520th statewide in terms of Hispanic residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Rio Grande's Hispanic population has grown by an estimated 35.3%. Hispanic residents' share of Rio Grande's population has increased from 2.3% to 3.1%.

Rio Grande is more Hispanic than neighboring Centerville (Thurman) (0% Hispanic), Bidwell (0.3% Hispanic), Vinton (2% Hispanic), Oak Hill (0% Hispanic), and Gallipolis (1.9% Hispanic).

Rio Grande's Native American/Other Population

1 residents of Rio Grande, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Rio Grande is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Rio Grande ranks 27th statewide in terms of Native American/Other residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Rio Grande's Native American/Other population has declined by an estimated 93.3%. Native American/Other residents' share of Rio Grande's population has decreased from 2.1% to 0.1%.

Rio Grande is more Native American/Other than neighboring Centerville (Thurman) (0% Native American/Other), Bidwell (0% Native American/Other), Vinton (0% Native American/Other), and Gallipolis (0% Native American/Other).

Rio Grande's Multiracial Population

52 residents of Rio Grande, or 7.0% of the population, identify as Multiracial. The share of Multiracial residents in Rio Grande is slightly higher than in Ohio overall, where 4.3% of the population is Multiracial. Rio Grande ranks 801st statewide in terms of Multiracial residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Rio Grande's Multiracial population has grown by an estimated 108.0%. Multiracial residents' share of Rio Grande's population has increased from 3.5% to 7.0%.

Rio Grande is more Multiracial than neighboring Centerville (Thurman) (0% Multiracial), Bidwell (5.8% Multiracial), Vinton (5.6% Multiracial), Oak Hill (2.5% Multiracial), and Gallipolis (4.3% 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.