Japanese Population in Allegheny County, PA by City : 2025 Ranking & Insights

The Japanese population in Allegheny County, PA is reported at 2,696 residents, according to recent U.S. Census estimates. Most cities in Allegheny County - including Pittsburgh, O'Hara township, McCandless township, and others - report some Japanese presence. With a total matching the county''s, this suggests a fully urbanized footprint for the group. The section below compares this even spread with similar counties in Pennsylvania.

Top 5 cities with the largest Japanese population in Allegheny County

View All
  • 1
    Pittsburgh
    Japanese population in Pittsburgh is 1,072
    0.35% of Pittsburgh population is Japanese
  • 2
    O'Hara township
    Japanese population in O'Hara township is 332
    3.63% of O'Hara township population is Japanese
  • 3
    McCandless township
    Japanese population in McCandless township is 264
    0.90% of McCandless township population is Japanese
  • 4
    Mount Lebanon township
    Japanese population in Mount Lebanon township is 92
    0.27% of Mount Lebanon township population is Japanese
  • 5
    Aspinwall
    Japanese population in Aspinwall is 65
    2.27% of Aspinwall population is Japanese

Overview of Japanese population in Allegheny County

  • Population Count and Percentage: American Community Survey data document Allegheny County with 2,696 Japanese residents (0.22% of 1.2 million total county population), positioning the jurisdiction at the 97th percentile nationally among counties and 97th percentile within Pennsylvania for Japanese population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS indicate Allegheny County's Japanese population of 0.22% exceeds Pennsylvania's state average of 0.15% while remaining below the national average of 0.49%, placing the county above regional demographic benchmarks while below national concentration levels.
  • Share of Total State Population: Official American Community Survey indicate Allegheny County's 2,696 Japanese residents constitute 14.2% of Pennsylvania's total Japanese population of 18,993, placing the county among jurisdictions with the highest demographic concentrations, with 14.2% of all Pennsylvania Japanese Americans residing within county boundaries.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey document Allegheny County with 3.7 Japanese Americans per square mile, eight and three-quarters times Pennsylvania's average density of 0.42 per square mile, placing the county among the most densely concentrated jurisdictions within the state.
  • Need additional overviews? Extended research data available for purchase and license. ➔

122 Cities in Allegheny County Ranked by Japanese Population

View Methodology
ACS data [1] show Japanese populations distributed across multiple cities in the county, led by Pittsburgh, O'Hara township, McCandless township, and Mount Lebanon township. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 122 incorporated cities included in this analysis*.
cities in Allegheny County, PA ranked by Japanese population count
Rank by Japanese Population
City
Japanese Population
% of Total City Population
% of Total Allegheny County Japanese Population
5 Year Rank Trend
1 Pittsburgh 1,072 0.35% 39.76%
2 O'Hara township 332 3.63% 12.31%
3 McCandless township 264 0.90% 9.79%
4 Mount Lebanon township 92 0.27% 3.41%
5 Aspinwall 65 2.27% 2.41%
6 Millvale 61 1.83% 2.26%
7 Monroeville 56 0.20% 2.08%
8 54 0.16% 2.00%
9 44 0.21% 1.63%
10 40 0.40% 1.48%
11 36 0.29% 1.34%
12 34 1.10% 1.26%
13 32 0.48% 1.19%
14 31 2.05% 1.15%
15 27 0.18% 1.00%
16 26 1.35% 0.96%
17 25 0.14% 0.93%
18 24 0.40% 0.89%
18 24 0.09% 0.89%
19 20 0.13% 0.74%
20 18 0.22% 0.67%
20 18 0.15% 0.67%
20 18 0.21% 0.67%
21 17 0.17% 0.63%
21 17 0.11% 0.63%
22 16 0.22% 0.59%
22 16 0.05% 0.59%
22 16 0.11% 0.59%
23 15 0.91% 0.56%
23 15 0.24% 0.56%
24 14 0.05% 0.52%
25 13 0.06% 0.48%
25 13 0.56% 0.48%
25 13 0.42% 0.48%
26 11 0.11% 0.41%
26 11 1.47% 0.41%
26 11 0.36% 0.41%
27 10 0.11% 0.37%
28 9 0.45% 0.33%
28 9 0.14% 0.33%
28 9 0.11% 0.33%
29 7 0.04% 0.26%
30 6 0.07% 0.22%
30 6 0.10% 0.22%
31 5 0.26% 0.19%
31 5 0.29% 0.19%
31 5 0.20% 0.19%
31 5 0.05% 0.19%
32 3 0.27% 0.11%
32 3 0.19% 0.11%
33 2 0.14% 0.07%
34 1 0.00% 0.04%
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 0 - -
35 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 Allegheny County, PA 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 Allegheny 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.