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

Shelby County reports a total of 79 Portuguese residents, with Bartlesville being the only city showing any presence - 78 residents. Copan and Dewey report none. The remaining population appears to reside in unincorporated areas, pointing to a rural demographic distribution outside city boundaries. Further analysis explores this rural dispersion across Oklahoma.

Top 5 cities with the largest Portuguese population in Washington County

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  • 1
    Bartlesville
    Portuguese population in Bartlesville is 78
    0.21% of Bartlesville population is Portuguese
  • 2
    Copan
    Portuguese population in Copan is 0
    - of Copan population is Portuguese
  • 3
    Dewey
    Portuguese population in Dewey is 0
    - of Dewey population is Portuguese
  • 4
    Ramona
    Portuguese population in Ramona is 0
    - of Ramona population is Portuguese

Overview of Portuguese population in Washington County

  • Population Count and Percentage: American Community Survey data document Washington County with 79 Portuguese residents (0.15% of 52,895 total county population), positioning the jurisdiction at the 73rd percentile nationally among counties and 83rd percentile within Oklahoma for Portuguese population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS indicate Washington County's Portuguese population of 0.15% exceeds Oklahoma's state average of 0.14% while remaining below the national average of 0.41%, placing the county above regional demographic benchmarks while below national concentration levels.
  • Share of Total State Population: Official American Community Survey show Washington County's 79 Portuguese residents constitute 1.4% of Oklahoma's total Portuguese population of 5,686.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Washington County's density of 0.19 Portuguese Americans per square mile exceeds Oklahoma's average of 0.083 per square mile by two and one-quarter times, establishing the county as a significant concentration center for Portuguese demographic communities.
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Washington County Cities Ranked by Portuguese Population

View Methodology
American Community Survey data [1] indicate 78 Portuguese population in Bartlesville and zero in Copan and Dewey. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for the three incorporated cities included in this analysis*.
cities in Washington County, OK ranked by Portuguese population count
Rank by Portuguese Population
City
Portuguese Population
% of Total City Population
% of Total Washington County Portuguese Population
5 Year Rank Trend
1 Bartlesville 78 0.21% 98.73%
2 Copan 0 - -
2 Dewey 0 - -
2 Ramona 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 city in Washington County, OK by their Portuguese population, using the most recent ACS data available.

How the Census defines Portuguese 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 Portuguese 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 Portuguese alone, while others identify as Portuguese along with another race (such as Portuguese and German).
  • We’ve used the “Portuguese alone or in any combination” category unless noted otherwise, which gives a broader picture of the Portuguese population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Portuguese 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 Portuguese .
  2. % of Total Washington County Portuguese Population – This tells us how much of the entire U.S. Portuguese 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 Portuguese 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 Portuguese 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 Portuguese populations are most concentrated while keeping the numbers easy to understand.

Sources

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