Japanese Population in Ohio by County : 2025 Ranking & Insights

According to the latest U.S. Census estimates, the Japanese population in Ohio totals 24,066. Franklin County contains the largest Japanese community with 5,927 residents, followed by Cuyahoga County (2,302), Hamilton County (1,788), and others contributing to this statewide total. This demographic analysis ranks all counties in Ohio by their Japanese populations, offering insights into local community distribution and broader settlement trends.

Top 5 counties with the largest Japanese population in Ohio

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  • 1
    Franklin County
    Japanese population in Franklin County is 5,927
    0.45% of Franklin County population is Japanese
  • 2
    Cuyahoga County
    Japanese population in Cuyahoga County is 2,302
    0.18% of Cuyahoga County population is Japanese
  • 3
    Hamilton County
    Japanese population in Hamilton County is 1,788
    0.22% of Hamilton County population is Japanese
  • 4
    Warren County
    Japanese population in Warren County is 1,286
    0.52% of Warren County population is Japanese
  • 5
    Montgomery County
    Japanese population in Montgomery County is 1,103
    0.21% of Montgomery County population is Japanese

Overview of Japanese population in Ohio

  • Population Count and Percentage: American Community Survey data indicate Ohio contains 24,066 Japanese residents (0.2% of 11.8 million total state population), positioning the state at the 72nd percentile nationally among U.S. states for Japanese population concentrations.
  • Comparison to State and National Averages: U.S. Census surveys show Ohio's Japanese demographic representation of 0.2% remains below the national average of 0.49%, positioning the state below typical U.S. demographic distribution patterns.
  • Share of Total National Population: Official American Community Survey document Ohio's 24,066 Japanese residents constitute 1.5% of the nation's total Japanese population of 1.6 million, providing the state with a measurable but modest share of the national demographic community.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data show Ohio maintains 0.59 Japanese Americans per square mile compared to the national average of 0.46, indicating higher demographic concentration relative to national averages.
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88 Counties in Ohio Ranked by Japanese Population

View Methodology
American Community Survey data [1] show Japanese population in Ohio distributed across multiple counties, led by Franklin County, Cuyahoga County, Hamilton County, and Warren County, while several other counties recorded no residents identified as Americans of Japanese ancestry. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for all counties included in this analysis*.
counties in Ohio ranked by Japanese population count
Rank by Japanese Population
County
Japanese Population
% of Total County Population
% of Total Ohio Japanese Population
5 Year Rank Trend
1 Franklin County 5,927 0.45% 24.63%
2 Cuyahoga County 2,302 0.18% 9.57%
3 Hamilton County 1,788 0.22% 7.43%
4 Warren County 1,286 0.52% 5.34%
5 Montgomery County 1,103 0.21% 4.58%
6 Miami County 991 0.90% 4.12%
7 Delaware County 894 0.40% 3.71%
8 794 0.15% 3.30%
9 723 0.43% 3.00%
10 630 0.16% 2.62%
11 473 0.26% 1.97%
12 469 0.11% 1.95%
13 453 0.14% 1.88%
14 378 0.10% 1.57%
15 377 0.58% 1.57%
16 375 0.18% 1.56%
17 363 0.20% 1.51%
18 306 0.32% 1.27%
19 264 0.12% 1.10%
20 248 0.15% 1.03%
21 239 0.18% 0.99%
22 236 0.32% 0.98%
23 229 0.55% 0.95%
24 228 0.11% 0.95%
25 200 0.09% 0.83%
25 200 0.34% 0.83%
26 184 0.15% 0.76%
27 166 0.38% 0.69%
28 150 0.52% 0.62%
29 145 0.15% 0.60%
29 145 0.35% 0.60%
30 132 0.08% 0.55%
31 114 0.24% 0.47%
32 112 0.24% 0.47%
33 103 0.17% 0.43%
33 103 0.17% 0.43%
34 88 0.09% 0.37%
35 85 0.31% 0.35%
35 85 0.06% 0.35%
36 68 0.07% 0.28%
37 60 0.08% 0.25%
37 60 0.05% 0.25%
38 56 0.10% 0.23%
38 56 0.10% 0.23%
39 52 0.08% 0.22%
39 52 0.08% 0.22%
40 50 0.14% 0.21%
41 47 0.05% 0.20%
42 45 0.06% 0.19%
43 44 0.07% 0.18%
44 38 0.10% 0.16%
44 38 0.09% 0.16%
45 31 0.11% 0.13%
46 27 0.05% 0.11%
47 26 0.06% 0.11%
48 22 0.06% 0.09%
49 21 0.05% 0.09%
49 21 0.05% 0.09%
50 20 0.07% 0.08%
50 20 0.03% 0.08%
51 19 0.04% 0.08%
52 18 0.05% 0.07%
52 18 0.08% 0.07%
53 15 0.04% 0.06%
54 13 0.05% 0.05%
55 8 0.01% 0.03%
55 8 0.03% 0.03%
56 6 0.05% 0.02%
56 6 0.01% 0.02%
57 4 0.01% 0.02%
57 4 0.01% 0.02%
58 3 0.01% 0.01%
59 2 0.00% 0.01%
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
60 0 - -
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks county in Ohio by their Japanese population, using the most recent ACS data available.

How the Census defines Japanese population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Japanese ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Japanese alone, while others identify as Japanese along with another race (such as Japanese and German).
  • We’ve used the “Japanese alone or in any combination” category unless noted otherwise, which gives a broader picture of the Japanese population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Japanese alone or in combination in county. To provide additional context, we’ve also included two key percentages:
  1. % of Total County Population – This shows what percentage of the total state population identifies as Japanese .
  2. % of Total Ohio Japanese Population – This tells us how much of the entire U.S. Japanese population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Japanese populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • County that don’t have any reported Japanese population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Japanese populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.