Sumner, IA Demographics

A map of Sumner's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	2,028	1,916	96.3%	94.4%
Multiracial	38	48	1.8%	2.4%
Black	18	2	0.9%	0.1%
Hispanic	17	53	0.8%	2.6%
Native American/Other	5	5	0.2%	0.2%
Asian	0	6	0.0%	0.3%

Sumner, Iowa has an estimated population of 2,106, an increase from the 2,030 recorded in the 2020 Census. The population is 96.3% White, 1.8% Multiracial, 0.9% Black, 0.8% Hispanic, 0.2% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Sumner, with one dot drawn for each person counted by the Census, color-coded by race.

Sumner has become 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 Sumner, that probability was 10.8% in 2020 and 7.2% in the most recent ACS estimates.

Sumner is ranked the 162nd 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). Sumner was ranked the 167th most populous place in the 2020 Census.

Sumner's White Population

2,028 residents of Sumner, or 96.3% of the population, identify as White. The share of White residents in Sumner is considerably higher than in Iowa overall, where 82.3% of the population is White. Sumner ranks 354th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sumner's White population has grown by an estimated 5.8%. White residents' share of Sumner's population has increased from 94.4% to 96.3%.

Sumner is more White than neighboring Westgate (86.5% White), Fredericksburg (88.8% White), Tripoli (88.3% White), Hawkeye (90.7% White), and Readlyn (95.2% White).

Sumner's Black Population

18 residents of Sumner, or 0.9% of the population, identify as Black. The share of Black residents in Sumner is slightly lower than in Iowa overall, where 3.8% of the population is Black. Sumner ranks 589th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sumner's Black population has grown by an estimated 800.0%. Black residents' share of Sumner's population has increased from 0.1% to 0.9%.

Sumner is more Black than neighboring Fredericksburg (0% Black), Tripoli (0% Black), and Readlyn (0% Black). Sumner is less Black than neighboring Westgate (7.9% Black), and Hawkeye (2.1% Black).

Sumner's Asian Population

0 residents of Sumner, or 0.0% of the population, identify as Asian. The share of Asian residents in Sumner is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Sumner ranks 410th statewide in terms of Asian residents as a share of the population, out of 1,026 places.

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

Sumner is less Asian than neighboring Readlyn (0.1% Asian).

Sumner's Hispanic Population

17 residents of Sumner, or 0.8% of the population, identify as Hispanic. The share of Hispanic residents in Sumner is lower than in Iowa overall, where 7.3% of the population is Hispanic. Sumner ranks 495th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sumner's Hispanic population has declined by an estimated 67.9%. Hispanic residents' share of Sumner's population has decreased from 2.6% to 0.8%.

Sumner is more Hispanic than neighboring Westgate (0% Hispanic). Sumner is less Hispanic than neighboring Fredericksburg (6.5% Hispanic), Tripoli (1.4% Hispanic), Hawkeye (2.3% Hispanic), and Readlyn (3.4% Hispanic).

Sumner's Native American/Other Population

5 residents of Sumner, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sumner is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Sumner ranks 532nd statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sumner's Native American/Other population has remained roughly the same. Native American/Other residents' share of Sumner's population has remained roughly unchanged at 0.2%.

Sumner is more Native American/Other than neighboring Westgate (0% Native American/Other), and Hawkeye (0% Native American/Other). Sumner is less Native American/Other than neighboring Fredericksburg (3.2% Native American/Other), Tripoli (1.6% Native American/Other), and Readlyn (0.3% Native American/Other).

Sumner's Multiracial Population

38 residents of Sumner, or 1.8% of the population, identify as Multiracial. The share of Multiracial residents in Sumner is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Sumner ranks 604th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Sumner's Multiracial population has declined by an estimated 20.8%. Multiracial residents' share of Sumner's population has decreased from 2.4% to 1.8%.

Sumner is more Multiracial than neighboring Fredericksburg (1.5% Multiracial), and Readlyn (1% Multiracial). Sumner is less Multiracial than neighboring Westgate (5.6% Multiracial), Tripoli (8.7% Multiracial), and Hawkeye (5% 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.