Merthyr Tydfil population, 2001–2025
Merthyr Tydfil has an estimated population of 58,362 (mid-2025), up 3.8% since 2001. Official ONS mid-year estimates for the Merthyr Tydfil local authority area. The newest year is provisional: when ONS published mid-2025 it revised the mid-2024 figure for 348 of the 361 UK authorities, so read the last point on any of these charts as the current best estimate rather than a settled number.
58,362
population, mid-2025
+3.8%
since 2001
-1.0%
last 10 years
2018
peak year (59,349)
Year by year
| Year | Population | Change |
|---|---|---|
| 2025 | 58,362 | -0.6% |
| 2024 | 58,722 | -0.0% |
| 2023 | 58,735 | -0.2% |
| 2022 | 58,866 | -0.0% |
| 2021 | 58,869 | -0.5% |
| 2020 | 59,194 | -0.1% |
| 2019 | 59,255 | -0.2% |
| 2018 | 59,349 | +0.0% |
| 2017 | 59,337 | +0.2% |
| 2016 | 59,247 | +0.6% |
| 2015 | 58,922 | +0.1% |
| 2014 | 58,859 | +0.1% |
| 2013 | 58,791 | -0.1% |
| 2012 | 58,869 | +0.0% |
| 2011 | 58,851 | +0.6% |
| 2010 | 58,493 | +0.6% |
| 2009 | 58,156 | +0.8% |
| 2008 | 57,688 | +0.9% |
| 2007 | 57,173 | +1.0% |
| 2006 | 56,627 | +0.7% |
| 2005 | 56,259 | +0.4% |
| 2004 | 56,020 | +0.1% |
| 2003 | 55,955 | -0.1% |
| 2002 | 55,996 | -0.4% |
| 2001 | 56,207 | — |
High street businesses
Merthyr Tydfil has 35 hairdressers and beauty salons, 30 pubs and bars, 10 licensed restaurants, 45 takeaways on the ONS business register (2025). Compare across the UK.
Rounded to the nearest 5, which is how ONS protects individual businesses from being identified.
Figures are ONS mid-year population estimates for the Merthyr Tydfil local authority area (code W06000024), which can differ from the population of a town of the same name. Sources & method.
Common questions
What is the population of Merthyr Tydfil?
58,362, on the ONS mid-2025 estimate for the Merthyr Tydfil local authority area. This page charts the full annual series back to 2001, so the figure sits in its twenty-year context rather than alone.
Is Merthyr Tydfil growing or shrinking?
Growing: up 3.8% since 2001, from 56,207 to 58,362. The peak year in the series so far is 2018. Year-by-year figures and the chart are on this page.