Delta, IA Demographics

A map of Delta's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	312	248	86.0%	93.9%
Hispanic	24	9	6.6%	3.4%
Multiracial	18	6	5.0%	2.3%
Black	8	1	2.2%	0.4%
Native American/Other	1	0	0.3%	0.0%
Asian	0	0	0.0%	0.0%

Delta, Iowa has an estimated population of 363, a dramatic increase from the 264 recorded in the 2020 Census. The population is 86.0% White, 6.6% Hispanic, 5.0% Multiracial, 2.2% Black, 0.3% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Delta, with one dot drawn for each person counted by the Census, color-coded by race.

Delta has become considerably 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 Delta, that probability was 11.6% in 2020 and 25.4% in the most recent ACS estimates.

Delta is ranked the 556th 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). Delta was ranked the 615th most populous place in the 2020 Census.

Delta's White Population

312 residents of Delta, or 86.0% of the population, identify as White. The share of White residents in Delta is slightly higher than in Iowa overall, where 82.3% of the population is White. Delta ranks 404th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's White population has grown by an estimated 25.8%. White residents' share of Delta's population has decreased from 93.9% to 86.0%.

Delta is more White than neighboring Thornburg (83.6% White). Delta is less White than neighboring What Cheer (92.4% White), Hayesville (100% White), Sigourney (99.5% White), and Rose Hill (99.3% White).

Delta's Black Population

8 residents of Delta, or 2.2% of the population, identify as Black. The share of Black residents in Delta is comparable to the share in Iowa overall, where 3.8% of the population is Black. Delta ranks 449th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's Black population has grown by an estimated 700.0%. Black residents' share of Delta's population has increased from 0.4% to 2.2%.

Delta is more Black than neighboring What Cheer (0.9% Black), Hayesville (0% Black), Sigourney (0.5% Black), Thornburg (0% Black), and Rose Hill (0% Black).

Delta's Asian Population

0 residents of Delta, or 0.0% of the population, identify as Asian. The share of Asian residents in Delta is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Delta ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's Asian population has grown from 0 to an estimated 0. Asian residents' share of Delta's population has remained roughly unchanged at 0.0%.

Delta's Hispanic Population

24 residents of Delta, or 6.6% of the population, identify as Hispanic. The share of Hispanic residents in Delta is comparable to the share in Iowa overall, where 7.3% of the population is Hispanic. Delta ranks 370th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's Hispanic population has grown by an estimated 166.7%. Hispanic residents' share of Delta's population has increased from 3.4% to 6.6%.

Delta is more Hispanic than neighboring What Cheer (3.6% Hispanic), Hayesville (0% Hispanic), Sigourney (0% Hispanic), and Rose Hill (0% Hispanic). Delta is less Hispanic than neighboring Thornburg (16.4% Hispanic).

Delta's Native American/Other Population

1 residents of Delta, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Delta is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Delta ranks 637th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's Native American/Other population has grown from 0 to an estimated 1. Native American/Other residents' share of Delta's population has remained roughly unchanged at 0.3%.

Delta is more Native American/Other than neighboring What Cheer (0% Native American/Other), Hayesville (0% Native American/Other), Sigourney (0% Native American/Other), Thornburg (0% Native American/Other), and Rose Hill (0% Native American/Other).

Delta's Multiracial Population

18 residents of Delta, or 5.0% of the population, identify as Multiracial. The share of Multiracial residents in Delta is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Delta ranks 629th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Delta's Multiracial population has grown by an estimated 200.0%. Multiracial residents' share of Delta's population has increased from 2.3% to 5.0%.

Delta is more Multiracial than neighboring What Cheer (3.1% Multiracial), Hayesville (0% Multiracial), Sigourney (0.1% Multiracial), Thornburg (0% Multiracial), and Rose Hill (0.7% 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.