Irish Population in Utah by County : 2025 Ranking & Insights

According to U.S. Census estimates, the Irish population in Utah totals 197,809. Every county in the state reports a non-zero population, with Salt Lake County leading at 73,824, followed by Utah County (33,794) and Davis County (22,066). This demographic analysis ranks all counties in Utah by their Irish population, offering insights into regional distribution patterns and highlighting county-level concentrations across the state.

Top 5 counties with the largest Irish population in Utah

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  • 1
    Salt Lake County
    Irish population in Salt Lake County is 73,824
    6.23% of Salt Lake County population is Irish
  • 2
    Utah County
    Irish population in Utah County is 33,794
    4.94% of Utah County population is Irish
  • 3
    Davis County
    Irish population in Davis County is 22,066
    6.02% of Davis County population is Irish
  • 4
    Weber County
    Irish population in Weber County is 15,958
    6.00% of Weber County population is Irish
  • 5
    Washington County
    Irish population in Washington County is 14,991
    7.90% of Washington County population is Irish

Overview of Irish population in Utah

  • Population Count and Percentage: American Community Survey documents Utah with 197,809 Irish residents (5.9% of 3.3 million total state population), ranking the state at the 22nd percentile nationally among U.S. jurisdictions for Irish demographic representation.
  • Comparison to State and National Averages: U.S. Census surveys show Utah's Irish demographic representation of 5.9% remains below the national average of 9.4%, positioning the state below typical U.S. demographic distribution patterns.
  • Share of Total National Population: Official American Community Survey data indicates Utah contains 197,809 Irish residents, representing less than 1% of the nation's total Irish population of 31.2 million, constituting a minimal fraction of the national demographic community relative to the state's overall population size.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows Utah's density of 2.4 Irish Americans per square mile remains below the national average of 8.8 per square mile, indicating relatively sparse distribution compared to national demographic concentrations.
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29 Counties in Utah Ranked by Irish Population

View Methodology
American Community Survey data [1] show Irish populations across every county in Utah, with demographic distributions ranging from the highest population in Salt Lake County to the lowest in $rank_n_geo_name. 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 Utah ranked by Irish population count
Rank by Irish Population
County
Irish Population
% of Total County Population
% of Total Utah Irish Population
5 Year Rank Trend
1 Salt Lake County 73,824 6.23% 37.32%
2 Utah County 33,794 4.94% 17.08%
3 Davis County 22,066 6.02% 11.16%
4 Weber County 15,958 6.00% 8.07%
5 Washington County 14,991 7.90% 7.58%
6 Cache County 6,717 4.90% 3.40%
7 Iron County 3,642 6.05% 1.84%
8 3,564 4.65% 1.80%
9 3,548 8.31% 1.79%
10 3,289 5.51% 1.66%
11 2,146 5.89% 1.08%
12 2,052 5.73% 1.04%
13 1,503 15.50% 0.76%
14 1,454 4.98% 0.74%
15 1,344 6.74% 0.68%
16 1,341 6.56% 0.68%
17 1,262 5.77% 0.64%
18 867 6.58% 0.44%
19 689 8.62% 0.35%
20 637 6.39% 0.32%
21 594 4.72% 0.30%
22 540 3.73% 0.27%
23 506 7.06% 0.26%
24 489 3.98% 0.25%
25 391 7.56% 0.20%
26 222 8.68% 0.11%
27 165 9.68% 0.08%
28 160 6.18% 0.08%
29 54 7.23% 0.03%
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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 Utah by their Irish population, using the most recent ACS data available.

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

How We Ranked the Data

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

Sources

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