Japanese Population in Washington County, OK by City : 2025 Ranking & Insights

The Japanese population in Washington County, OK is reported at 70 residents, according to recent U.S. Census estimates. Two cities in Washington County, OK - Bartlesville and Copan - account for most of the Japanese population. The rest of the population, beyond 32 and 2, appears in rural or unincorporated areas. The cities Dewey and Ramona show no presence. This spread suggests a partially rural demographic distribution. The analysis below breaks it down further.

Top 5 cities with the largest Japanese population in Washington County

View All
  • 1
    Bartlesville
    Japanese population in Bartlesville is 32
    0.09% of Bartlesville population is Japanese
  • 2
    Copan
    Japanese population in Copan is 2
    0.26% of Copan population is Japanese
  • 3
    Dewey
    Japanese population in Dewey is 0
    - of Dewey population is Japanese
  • 4
    Ramona
    Japanese population in Ramona is 0
    - of Ramona population is Japanese

Overview of Japanese population in Washington County

  • Population Count and Percentage: American Community Survey data document Washington County with 70 Japanese residents (0.13% of 52,895 total county population), positioning the jurisdiction at the 68th percentile nationally among counties and 75th percentile within Oklahoma for Japanese population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data indicate Washington County's Japanese population of 0.13% remains below Oklahoma's state average of 0.22% and the national average of 0.49%, placing the county below demographic benchmarks across multiple geographic scales.
  • Share of Total State Population: Official American Community Survey data indicates Washington County contains 70 Japanese residents, representing less than 1% of Oklahoma's total Japanese population of 8,795.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey shows Washington County maintains 0.17 Japanese Americans per square mile compared to Oklahoma's average of 0.13, indicating higher demographic concentration relative to state averages.
  • Need additional overviews? Extended research data available for purchase and license. ➔

Washington County Cities Ranked by Japanese Population

View Methodology
American Community Survey data [1] indicate 32 Japanese population in Bartlesville, 2 in Copan and zero in Dewey and Ramona. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for the four incorporated cities included in this analysis*.
cities in Washington County, OK ranked by Japanese population count
Rank by Japanese Population
City
Japanese Population
% of Total City Population
% of Total Washington County Japanese Population
5 Year Rank Trend
1 Bartlesville 32 0.09% 45.71%
2 Copan 2 0.26% 2.86%
3 Dewey 0 - -
3 Ramona 0 - -
Need the complete table? Full rankings and the underlying data sets for California and other locations are available for purchase or license.

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 city in Washington County, OK 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 city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Japanese .
  2. % of Total Washington County 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.
  • City 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.