Data Scientist Salary in Wales
Official ONS earnings for Wales.
Median salary — Wales
£35,806
gross, per year
▲ 30.7% change on the previous year
Mean
£35,629
What most data scientists actually earn
Half of data scientists across the UK earn between £30,000 and £46,152. Earning above £46,152 puts you in the top quarter of the profession.
This range is UK-wide — ONS publishes no regional breakdown of the spread for this occupation.
The full pay range
Each bar is the salary at that percentile — the 25th means a quarter of data scientists earn less than this.
Where this figure comes from
- ONS occupation group
- Data analysts
- SOC 2020 code
- 3544
- Measure
- Gross annual pay, all employees
- Edition
- ONS Annual Survey of Hours and Earnings, 2025 provisional
ONS doesn't measure “data scientist” as its own category. These figures are for the wider group “Data analysts”, which includes this role alongside others. ONS has no separate data scientist group; 3544 Data analysts is the closest.
Source: Office for National Statistics, Annual Survey of Hours and Earnings. Contains public sector information licensed under the Open Government Licence v3.0. Figures are estimates from a survey of PAYE jobs and are not financial advice.
Data Scientist salary FAQs
What is the average Data Scientist salary in Wales?
The median is £35,806 a year and the mean is £35,629, according to the ONS Annual Survey of Hours and Earnings.
What is a good Data Scientist salary?
Half of data scientists earn between £30,000 and £46,152. Anything above £46,152 is in the top quarter for the role.
Is this figure official?
Yes. It comes from the ONS Annual Survey of Hours and Earnings, an accredited official statistic based on employer PAYE records.
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