Japanese Population in Amador County, CA by City : 2025 Ranking & Insights

The Japanese population in Amador County, CA is reported at 230 residents, according to recent U.S. Census estimates. In Amador County, three cities - Ione, Sutter Creek, and Jackson - show significant Japanese populations. Plymouth reports none. The total county figure of 230 suggests that some population lives in rural or unincorporated parts of the county. Insights below highlight this mixed distribution.

Top 5 cities with the largest Japanese population in Amador County

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  • 1
    Ione
    Japanese population in Ione is 82
    1.55% of Ione population is Japanese
  • 2
    Sutter Creek
    Japanese population in Sutter Creek is 52
    1.94% of Sutter Creek population is Japanese
  • 3
    Jackson
    Japanese population in Jackson is 6
    0.12% of Jackson population is Japanese
  • 4
    Plymouth
    Japanese population in Plymouth is 0
    - of Plymouth population is Japanese

Overview of Japanese population in Amador County

  • Population Count and Percentage: American Community Survey data document Amador County with 230 Japanese residents (0.56% of 41,029 total county population), positioning the jurisdiction at the 82nd percentile nationally among counties and 20th percentile within California for Japanese population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents Amador County's Japanese demographic representation of 0.56%, exceeding the national average of 0.49% while remaining below California's elevated state average of 1.2%, placing the county above national concentration levels while below state demographic averages.
  • Share of Total State Population: Official American Community Survey data indicates Amador County contains 230 Japanese residents, representing less than 1% of California's total Japanese population of 480,944.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey documents Amador County with 0.39 Japanese Americans per square mile, below California's average of 3.1 per square mile, placing the county among the least concentrated jurisdictions within the state.
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Amador County Cities Ranked by Japanese Population

View Methodology
ACS demographic data [1] document 230 Japanese residents across three of four cities in Amador County, CA included in this analysis* — Ione, Sutter Creek, and Jackson. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on Census Bureau data.
cities in Amador County, CA ranked by Japanese population count
Rank by Japanese Population
City
Japanese Population
% of Total City Population
% of Total Amador County Japanese Population
5 Year Rank Trend
1 Ione 82 1.55% 35.65%
2 Sutter Creek 52 1.94% 22.61%
3 Jackson 6 0.12% 2.61%
4 Plymouth 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 Amador County, CA 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 Amador 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.