Olin, IA Demographics

A map of Olin's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	635	623	76.5%	95.7%
Multiracial	100	12	12.0%	1.8%
Black	76	11	9.2%	1.7%
Asian	8	0	1.0%	0.0%
Native American/Other	6	0	0.7%	0.0%
Hispanic	5	5	0.6%	0.8%

Olin, Iowa has an estimated population of 830, a large increase from the 651 recorded in the 2020 Census. The population is 76.5% White, 12.0% Multiracial, 9.2% Black, 1.0% Asian, 0.7% Native American/Other, and 0.6% Hispanic. This demographic dot map shows the population of Olin, with one dot drawn for each person counted by the Census, color-coded by race.

Olin has become considerably more racially diverse since the 2020 Census. It is considerably more 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 Olin, that probability was 8.3% in 2020 and 39.2% in the most recent ACS estimates.

Olin is ranked the 338th 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). Olin was ranked the 397th most populous place in the 2020 Census.

Olin's White Population

635 residents of Olin, or 76.5% of the population, identify as White. The share of White residents in Olin is lower than in Iowa overall, where 82.3% of the population is White. Olin ranks 212th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Olin's White population has grown by an estimated 1.9%. White residents' share of Olin's population has decreased from 95.7% to 76.5%.

Olin is less White than neighboring Morley (100% White), Stanwood (93.1% White), Center Junction (100% White), Clarence (98% White), and Mechanicsville (94% White).

Olin's Black Population

76 residents of Olin, or 9.2% of the population, identify as Black. The share of Black residents in Olin is higher than in Iowa overall, where 3.8% of the population is Black. Olin ranks 115th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Olin's Black population has grown by an estimated 590.9%. Black residents' share of Olin's population has increased from 1.7% to 9.2%.

Olin is more Black than neighboring Morley (0% Black), Stanwood (2.3% Black), Center Junction (0% Black), Clarence (1.1% Black), and Mechanicsville (0% Black).

Olin's Asian Population

8 residents of Olin, or 1.0% of the population, identify as Asian. The share of Asian residents in Olin is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Olin ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Olin's Asian population has grown from 0 to an estimated 8. Asian residents' share of Olin's population has increased from 0.0% to 1.0%.

Olin is more Asian than neighboring Morley (0% Asian), Stanwood (0% Asian), Center Junction (0% Asian), Clarence (0% Asian), and Mechanicsville (0% Asian).

Olin's Hispanic Population

5 residents of Olin, or 0.6% of the population, identify as Hispanic. The share of Hispanic residents in Olin is lower than in Iowa overall, where 7.3% of the population is Hispanic. Olin ranks 876th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Olin's Hispanic population has remained roughly the same. Hispanic residents' share of Olin's population has remained roughly unchanged at 0.6%.

Olin is more Hispanic than neighboring Morley (0% Hispanic), and Center Junction (0% Hispanic). Olin is less Hispanic than neighboring Mechanicsville (4.5% Hispanic).

Olin's Native American/Other Population

6 residents of Olin, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Olin is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Olin 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, Olin's Native American/Other population has grown from 0 to an estimated 6. Native American/Other residents' share of Olin's population has increased from 0.0% to 0.7%.

Olin is more Native American/Other than neighboring Morley (0% Native American/Other), Stanwood (0% Native American/Other), Center Junction (0% Native American/Other), Clarence (0% Native American/Other), and Mechanicsville (0.1% Native American/Other).

Olin's Multiracial Population

100 residents of Olin, or 12.0% of the population, identify as Multiracial. The share of Multiracial residents in Olin is higher than in Iowa overall, where 3.5% of the population is Multiracial. Olin ranks 735th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Olin's Multiracial population has grown by an estimated 733.3%. Multiracial residents' share of Olin's population has increased from 1.8% to 12.0%.

Olin is more Multiracial than neighboring Morley (0% Multiracial), Stanwood (4.1% Multiracial), Center Junction (0% Multiracial), Clarence (0.3% Multiracial), and Mechanicsville (1.5% 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.