Sigourney, IA Demographics

A map of Sigourney's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	1,944	1,881	99.5%	93.9%
Black	9	17	0.5%	0.8%
Multiracial	1	62	0.1%	3.1%
Asian	0	4	0.0%	0.2%
Hispanic	0	38	0.0%	1.9%
Native American/Other	0	2	0.0%	0.1%

Sigourney, Iowa has an estimated population of 1,954, a slight decrease from the 2,004 recorded in the 2020 Census. The population is 99.5% White, 0.5% Black, 0.1% Multiracial, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Sigourney, with one dot drawn for each person counted by the Census, color-coded by race.

Sigourney has become considerably less 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 Sigourney, that probability was 11.8% in 2020 and 1.0% in the most recent ACS estimates.

Sigourney is ranked the 171st 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). Sigourney was ranked the 171st most populous place in the 2020 Census.

Sigourney's White Population

1,944 residents of Sigourney, or 99.5% of the population, identify as White. The share of White residents in Sigourney is significantly higher than in Iowa overall, where 82.3% of the population is White. Sigourney ranks 415th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's White population has grown by an estimated 3.3%. White residents' share of Sigourney's population has increased from 93.9% to 99.5%.

Sigourney is more White than neighboring Webster (81.3% White), Keswick (96.5% White), Delta (86% White), and Harper (94.2% White). Sigourney is less White than neighboring Hayesville (100% White).

Sigourney's Black Population

9 residents of Sigourney, or 0.5% of the population, identify as Black. The share of Black residents in Sigourney is slightly lower than in Iowa overall, where 3.8% of the population is Black. Sigourney ranks 240th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's Black population has declined by an estimated 47.1%. Black residents' share of Sigourney's population has remained roughly unchanged at 0.5%.

Sigourney is more Black than neighboring Hayesville (0% Black), Keswick (0% Black), and Harper (0% Black). Sigourney is less Black than neighboring Webster (0.7% Black), and Delta (2.2% Black).

Sigourney's Asian Population

0 residents of Sigourney, or 0.0% of the population, identify as Asian. The share of Asian residents in Sigourney is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Sigourney ranks 473rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's Asian population has declined by an estimated 100.0%. Asian residents' share of Sigourney's population has remained roughly unchanged at 0.0%.

Sigourney's Hispanic Population

0 residents of Sigourney, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Sigourney is lower than in Iowa overall, where 7.3% of the population is Hispanic. Sigourney ranks 638th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Sigourney's population has decreased from 1.9% to 0.0%.

Sigourney is less Hispanic than neighboring Webster (17.9% Hispanic), Keswick (3.5% Hispanic), Delta (6.6% Hispanic), and Harper (2.6% Hispanic).

Sigourney's Native American/Other Population

0 residents of Sigourney, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sigourney is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Sigourney ranks 625th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Sigourney's population has remained roughly unchanged at 0.0%.

Sigourney is less Native American/Other than neighboring Delta (0.3% Native American/Other).

Sigourney's Multiracial Population

1 residents of Sigourney, or 0.1% of the population, identify as Multiracial. The share of Multiracial residents in Sigourney is slightly lower than in Iowa overall, where 3.5% of the population is Multiracial. Sigourney ranks 391st statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sigourney's Multiracial population has declined by an estimated 98.4%. Multiracial residents' share of Sigourney's population has decreased from 3.1% to 0.1%.

Sigourney is more Multiracial than neighboring Hayesville (0% Multiracial), Webster (0% Multiracial), and Keswick (0% Multiracial). Sigourney is less Multiracial than neighboring Delta (5% Multiracial), and Harper (3.2% 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.