Williamson, IA Demographics

A map of Williamson's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	177	114	93.2%	95.0%
Hispanic	12	3	6.3%	2.5%
Asian	1	0	0.5%	0.0%
Black	0	0	0.0%	0.0%
Native American/Other	0	0	0.0%	0.0%
Multiracial	0	3	0.0%	2.5%

Williamson, Iowa has an estimated population of 190, a dramatic increase from the 120 recorded in the 2020 Census. The population is 93.2% White, 6.3% Hispanic, 0.5% Asian, 0.0% Black, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Williamson, with one dot drawn for each person counted by the Census, color-coded by race.

Williamson 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 Williamson, that probability was 9.6% in 2020 and 12.8% in the most recent ACS estimates.

Williamson is ranked the 707th 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). Williamson was ranked the 819th most populous place in the 2020 Census.

Williamson's White Population

177 residents of Williamson, or 93.2% of the population, identify as White. The share of White residents in Williamson is considerably higher than in Iowa overall, where 82.3% of the population is White. Williamson ranks 297th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Williamson's White population has grown by an estimated 55.3%. White residents' share of Williamson's population has decreased from 95.0% to 93.2%.

Williamson is more White than neighboring Chariton (91.3% White), and Lacona (92.1% White). Williamson is less White than neighboring Russell (97.1% White), Melcher-Dallas (93.5% White), and Lucas (93.8% White).

Williamson's Black Population

0 residents of Williamson, or 0.0% of the population, identify as Black. The share of Black residents in Williamson is slightly lower than in Iowa overall, where 3.8% of the population is Black. Williamson ranks 600th statewide in terms of Black residents as a share of the population, out of 1,026 places.

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

Williamson is less Black than neighboring Chariton (0.6% Black).

Williamson's Asian Population

1 residents of Williamson, or 0.5% of the population, identify as Asian. The share of Asian residents in Williamson is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Williamson ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Williamson's Asian population has grown from 0 to an estimated 1. Asian residents' share of Williamson's population has increased from 0.0% to 0.5%.

Williamson is more Asian than neighboring Russell (0% Asian), Melcher-Dallas (0% Asian), and Lacona (0% Asian). Williamson is less Asian than neighboring Chariton (1.5% Asian), and Lucas (1.4% Asian).

Williamson's Hispanic Population

12 residents of Williamson, or 6.3% of the population, identify as Hispanic. The share of Hispanic residents in Williamson is comparable to the share in Iowa overall, where 7.3% of the population is Hispanic. Williamson ranks 518th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Williamson's Hispanic population has grown by an estimated 300.0%. Hispanic residents' share of Williamson's population has increased from 2.5% to 6.3%.

Williamson is more Hispanic than neighboring Chariton (5% Hispanic), Russell (0.2% Hispanic), Melcher-Dallas (4.8% Hispanic), Lacona (2.5% Hispanic), and Lucas (0% Hispanic).

Williamson's Native American/Other Population

0 residents of Williamson, 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 Williamson is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Williamson 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, Williamson's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Williamson's population has remained roughly unchanged at 0.0%.

Williamson is less Native American/Other than neighboring Russell (0.2% Native American/Other).

Williamson's Multiracial Population

0 residents of Williamson, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Williamson is slightly lower than in Iowa overall, where 3.5% of the population is Multiracial. Williamson ranks 562nd statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Williamson's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Williamson's population has decreased from 2.5% to 0.0%.

Williamson is less Multiracial than neighboring Chariton (1.6% Multiracial), Russell (2.6% Multiracial), Melcher-Dallas (1.7% Multiracial), Lacona (5.4% Multiracial), and Lucas (4.8% 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.