Buffalo, IA Demographics

A map of Buffalo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	950	1,038	86.6%	88.3%
Hispanic	69	70	6.3%	6.0%
Native American/Other	60	1	5.5%	0.1%
Multiracial	10	53	0.9%	4.5%
Black	8	8	0.7%	0.7%
Asian	0	6	0.0%	0.5%

Buffalo, Iowa has an estimated population of 1,097, a decrease from the 1,176 recorded in the 2020 Census. The population is 86.6% White, 6.3% Hispanic, 5.5% Native American/Other, 0.9% Multiracial, 0.7% Black, and 0.0% Asian. This demographic dot map shows the population of Buffalo, with one dot drawn for each person counted by the Census, color-coded by race.

Buffalo has become more racially diverse since the 2020 Census. It is considerably less diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Buffalo, that probability was 21.5% in 2020 and 24.3% in the most recent ACS estimates.

Buffalo is ranked the 268th most populous place in Iowa, out of 1,026 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). Buffalo was ranked the 248th most populous place in the 2020 Census.

Buffalo's White Population

950 residents of Buffalo, or 86.6% of the population, identify as White. The share of White residents in Buffalo is slightly higher than in Iowa overall, where 82.3% of the population is White. Buffalo ranks 821st statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Buffalo's White population has declined by an estimated 8.5%. White residents' share of Buffalo's population has decreased from 88.3% to 86.6%.

Buffalo is more White than neighboring Blue Grass (84.8% White). Buffalo is less White than neighboring Andalusia (91.3% White), Taylor Ridge (100% White), Edgington (100% White), and Montpelier (100% White).

Buffalo's Black Population

8 residents of Buffalo, or 0.7% of the population, identify as Black. The share of Black residents in Buffalo is slightly lower than in Iowa overall, where 3.8% of the population is Black. Buffalo ranks 302nd statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Buffalo's Black population has remained roughly the same. Black residents' share of Buffalo's population has remained roughly unchanged at 0.7%.

Buffalo is more Black than neighboring Andalusia (0% Black), Blue Grass (0.2% Black), Taylor Ridge (0% Black), Edgington (0% Black), and Montpelier (0% Black).

Buffalo's Asian Population

0 residents of Buffalo, or 0.0% of the population, identify as Asian. The share of Asian residents in Buffalo is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Buffalo ranks 284th statewide in terms of Asian residents as a share of the population, out of 1,026 places.

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

Buffalo is less Asian than neighboring Blue Grass (0.2% Asian).

Buffalo's Hispanic Population

69 residents of Buffalo, or 6.3% of the population, identify as Hispanic. The share of Hispanic residents in Buffalo is comparable to the share in Iowa overall, where 7.3% of the population is Hispanic. Buffalo ranks 184th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Buffalo's Hispanic population has declined by an estimated 1.4%. Hispanic residents' share of Buffalo's population has remained roughly unchanged at 6.3%.

Buffalo is more Hispanic than neighboring Andalusia (4% Hispanic), Taylor Ridge (0% Hispanic), Edgington (0% Hispanic), and Montpelier (0% Hispanic). Buffalo is less Hispanic than neighboring Blue Grass (10.1% Hispanic).

Buffalo's Native American/Other Population

60 residents of Buffalo, or 5.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Buffalo is slightly higher than in Iowa overall, where 0.6% of the population is Native American/Other. Buffalo ranks 630th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Buffalo's Native American/Other population has grown by an estimated 5900.0%. Native American/Other residents' share of Buffalo's population has increased from 0.1% to 5.5%.

Buffalo is more Native American/Other than neighboring Andalusia (0% Native American/Other), Blue Grass (0.7% Native American/Other), Taylor Ridge (0% Native American/Other), Edgington (0% Native American/Other), and Montpelier (0% Native American/Other).

Buffalo's Multiracial Population

10 residents of Buffalo, or 0.9% of the population, identify as Multiracial. The share of Multiracial residents in Buffalo is slightly lower than in Iowa overall, where 3.5% of the population is Multiracial. Buffalo ranks 162nd statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Buffalo's Multiracial population has declined by an estimated 81.1%. Multiracial residents' share of Buffalo's population has decreased from 4.5% to 0.9%.

Buffalo is more Multiracial than neighboring Taylor Ridge (0% Multiracial), Edgington (0% Multiracial), and Montpelier (0% Multiracial). Buffalo is less Multiracial than neighboring Andalusia (4.7% Multiracial), and Blue Grass (4.1% 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.