Ottawa, OH Demographics

A map of Ottawa's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,624	3,675	81.6%	82.5%
Hispanic	632	609	14.2%	13.7%
Multiracial	80	102	1.8%	2.3%
Black	71	39	1.6%	0.9%
Asian	22	23	0.5%	0.5%
Native American/Other	12	8	0.3%	0.2%

Ottawa, Ohio has an estimated population of 4,441, a less than 1% change from the 4,456 recorded in the 2020 Census. The population is 81.6% White, 14.2% Hispanic, 1.8% Multiracial, 1.6% Black, 0.5% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Ottawa, with one dot drawn for each person counted by the Census, color-coded by race.

Ottawa has become more racially diverse since the 2020 Census. It is considerably less diverse than Ohio overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Ottawa, that probability was 30.0% in 2020 and 31.3% in the most recent ACS estimates.

Ottawa is ranked the 314th most populous place in Ohio, out of 1,265 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). Ottawa was ranked the 315th most populous place in the 2020 Census.

Ottawa's White Population

3,624 residents of Ottawa, or 81.6% of the population, identify as White. The share of White residents in Ottawa is higher than in Ohio overall, where 75.8% of the population is White. Ottawa ranks 1065th statewide in terms of White residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's White population has declined by an estimated 1.4%. White residents' share of Ottawa's population has decreased from 82.5% to 81.6%.

Ottawa is more White than neighboring West Leipsic (75.9% White), and Leipsic (48.1% White). Ottawa is less White than neighboring Glandorf (98% White), Columbus Grove (82.5% White), and Pandora (84.7% White).

Ottawa's Black Population

71 residents of Ottawa, or 1.6% of the population, identify as Black. The share of Black residents in Ottawa is considerably lower than in Ohio overall, where 12% of the population is Black. Ottawa ranks 584th statewide in terms of Black residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's Black population has grown by an estimated 82.1%. Black residents' share of Ottawa's population has increased from 0.9% to 1.6%.

Ottawa is more Black than neighboring Glandorf (0.5% Black), West Leipsic (0% Black), and Columbus Grove (0.1% Black). Ottawa is less Black than neighboring Pandora (2.4% Black), and Leipsic (2.1% Black).

Ottawa's Asian Population

22 residents of Ottawa, or 0.5% of the population, identify as Asian. The share of Asian residents in Ottawa is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Ottawa ranks 515th statewide in terms of Asian residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's Asian population has declined by an estimated 4.3%. Asian residents' share of Ottawa's population has remained roughly unchanged at 0.5%.

Ottawa is more Asian than neighboring Pandora (0% Asian), and Leipsic (0.4% Asian). Ottawa is less Asian than neighboring West Leipsic (3.2% Asian), and Columbus Grove (0.7% Asian).

Ottawa's Hispanic Population

632 residents of Ottawa, or 14.2% of the population, identify as Hispanic. The share of Hispanic residents in Ottawa is higher than in Ohio overall, where 4.8% of the population is Hispanic. Ottawa ranks 31st statewide in terms of Hispanic residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's Hispanic population has grown by an estimated 3.8%. Hispanic residents' share of Ottawa's population has increased from 13.7% to 14.2%.

Ottawa is more Hispanic than neighboring Glandorf (0.3% Hispanic), Columbus Grove (7.6% Hispanic), and Pandora (10.9% Hispanic). Ottawa is less Hispanic than neighboring West Leipsic (18.1% Hispanic), and Leipsic (47% Hispanic).

Ottawa's Native American/Other Population

12 residents of Ottawa, 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 Ottawa is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Ottawa ranks 957th statewide in terms of Native American/Other residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's Native American/Other population has grown by an estimated 50.0%. Native American/Other residents' share of Ottawa's population has remained roughly unchanged at 0.3%.

Ottawa is more Native American/Other than neighboring Glandorf (0.2% Native American/Other), West Leipsic (0% Native American/Other), Pandora (0% Native American/Other), and Leipsic (0% Native American/Other). Ottawa is less Native American/Other than neighboring Columbus Grove (6.7% Native American/Other).

Ottawa's Multiracial Population

80 residents of Ottawa, or 1.8% of the population, identify as Multiracial. The share of Multiracial residents in Ottawa is slightly lower than in Ohio overall, where 4.3% of the population is Multiracial. Ottawa ranks 1087th statewide in terms of Multiracial residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Ottawa's Multiracial population has declined by an estimated 21.6%. Multiracial residents' share of Ottawa's population has remained roughly unchanged at 1.8%.

Ottawa is more Multiracial than neighboring Glandorf (0.5% Multiracial). Ottawa is less Multiracial than neighboring West Leipsic (2.8% Multiracial), Columbus Grove (2.4% Multiracial), Pandora (2% Multiracial), and Leipsic (2.4% 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.