My 2025 AncestryDNA Origins Update: The Biggest Ethnicity Update Yet

AncestryDNA’s 2025 ethnicity update introduced over 3,600 global regions—see how my results changed!

Ancestry has just rolled out its biggest ethnicity update ever—and like many other users, I was eager (and a little nervous!) to see how my results would change this time around. Their last major update was in July 2024, and I received my newly updated AncestryDNA Origins (Ancestral Regions) results on October 9, 2025.
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Let’s just say—Ancestry definitely shook things up!

My 2025 AncestryDNA Results

Here’s a look at my brand-new 2025 results, which now include 11 ancestral regions:

My Ancestry 2025 DNA Origins Update, 1

My Ancestry 2025 DNA Origins Update, 1-2

​You’ll notice that my English regions are now far more specific, broken into multiple new areas, while my Celtic and Gaelic regions—especially Scotland and Ireland—grew significantly.

Comparing 2024 vs. 2025: What Changed?

Ancestry’s new update completely reshuffled several of my regions. Here’s a quick comparison:

My Ancestry Ethnicity Update 2024-2025 Comparison Chart

This year’s update replaced many of the broad continental or country-level regions with more precise subregions. For example, “England & Northwestern Europe” was broken down into Southeastern England, Northern Wales & North West England, East Midlands, North East England, and West Midlands. Similarly, “Germanic Europe” was divided into more refined zones like Southern Germanic Europe.

My Reactions: Interesting, but a Little Off

While I always appreciate the increasing detail in these updates, I have to admit—some of my new results made me pause.

The surge in Scottish and Irish percentages felt a bit overestimated, especially since my paternal side has no known Scottish or Irish ancestry. My paternal great-grandparents were from Mexico and Germany (both families rooted there for many generations), and my other paternal great-grandparent line descends primarily from Germany and England. Although, who's to say where they were thousands of years ago, right?

There is Irish and Scottish ancestry on my mother’s side, but this new update seems to have assigned some of it to my father’s line as well—where it doesn’t belong.

Still, it’s a good reminder that DNA ethnicity estimates are just that--estimates. They’re based on evolving databases, shifting scientific models, and complex patterns of shared DNA that can cross regional borders.

What’s New in the 2025 Update

According to Ancestry, this update is “the most exciting and detailed one yet,” introducing over 3,600 global regions (up from about 2,200 last year) and powered by an expanded reference panel of more than 185,000 DNA samples.

A few highlights of the science behind this update:

• 68 new and updated European regions were added for greater granularity.
• Broader regions (like Ireland, England, and Germany) were divided into smaller, more localized regions—for instance, Ireland now includes Connacht, Donegal, Leinster, and Munster.
• Ancestry’s scientists combined DNA data from users with detailed family trees and those with no trees but similar genetic patterns to build a more comprehensive reference base.
• Results are now organized into larger “macro-regions” (such as Celtic & Gaelic, Nordic, or Western Europe), making it easier to see related groupings at a glance.

In short, Ancestry has moved from a broad-strokes view of Europe to something much more detailed and regionally specific.

What This Means for Genealogists

For genealogists and family historians, these updates can be both exciting and confusing. The increased detail can help narrow down migration patterns and regional origins, but it can also raise new questions—especially when percentages shift dramatically.

When you see unexpected results:

• Compare your new regions to your known family tree to spot inconsistencies.
• Look at the geographic areas on the map in each region—Ancestry emphasizes that these are often broader than the region name suggests.
• Look at the ranges, not just the absolute estimates, using the information icon next to the estimate percentage.
• Check which side of your family likely contributes to each region by reviewing your matches under each ethnicity category.

Remember, DNA results complement your research—they don’t replace it.

Tracing My AncestryDNA Updates Through the Years

It’s always fascinating to look back and see how much AncestryDNA’s ethnicity estimates have evolved over time. From the early, broad regional groupings to today’s ultra-detailed breakdowns, these updates tell as much about the advancement of DNA science as they do about our ancestral origins.

2014 to Summer 2018: The Early Years (Few Changes)
From 2014 through mid-2018, my ethnicity results remained nearly identical. Ancestry made only one small adjustment in 2018, changing Italy/Greece to the broader region of Europe South. Other than that, there were no real differences for several years—until the first major overhaul later that same year.

*Click to view

My AncestryDNA “Ethnicity” Results 2014, 2015, 2016 & 2017 (No Changes)

My AncestryDNA “Ethnicity” Results – Summer 2018 (Basically the Same)

September 2018 to 2025: Major Updates and Refinements
Ancestry rolled out its first significant ethnicity update in late 2018, which completely reshaped many users’ results—including mine. From that point forward, Ancestry continued refining and expanding its reference panels almost every year, introducing more precise regions and new tools along the way.

Each update has reflected both technological advances and a growing database of DNA samples—culminating in the biggest update ever in October 2025.

*Click to view 

My AncestryDNA “Ethnicity” Results – September 2018 (Big Change)

My AncestryDNA “Ethnicity” Results – July 2021 (Reshuffling)

My AncestryDNA “Ethnicity” Results by Parent – April 2022 (Introduction of Split by Parent)

My Ancestry DNA "Ethnicity" Results by Parent 2024

My AncestryDNA “Ethnicity” Results – October 2024

My AncestryDNA “Ethnicity” Results – October 2019 (Basically the Same)

My AncestryDNA “Ethnicity” Results – July 2020 (Significant Change)

My AncestryDNA “Ethnicity” Results – June 2022 (The “Best Estimate”)

My AncestryDNA “Ethnicity” Results – 2023 (Basically the Same)

My AncestryDNA “Ethnicity” Results – October 2025 (Their “Biggest Update Ever”)

My AncestryDNA “Ethnicity” Results by Parent – 2025

Final Thoughts

I love seeing how Ancestry’s science continues to evolve, and I’m always fascinated by how my results shift with each major update. Even though some of this year’s changes don’t quite align with my documented family lines, I’ll be exploring them further—particularly the English subregions, which now offer much more specificity.
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As always, I recommend saving your screenshots from each version of your ethnicity results, so you can track how your ancestry story evolves over time.

More about DNA "Ethnicity results

To learn more about DNA "ethnicity" results, check out my post: Genealogy DNA Testing: Understanding Your Real DNA Ethnicity Results. 

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Find more DNA genealogy resources, tips, news, and updates under the Genetic Genealogy and DNA Category.

​More Ancestry and Genealogy Resources

Learn about more Ancestry updates, tips, tools, and features and other family history and genealogy resources under the Ancestry.com and the Genealogy Resources categories of my blog and on my dedicated Genealogy Resources page.