Town comparison
Cardiff vs St Athan
Which is better to live in? 11.9 miles apart — compared on house prices, crime, schools, broadband and more.
The verdict
When it comes to cost of living, St Athan wins on house prices with a 36% gap. St Athan has the lower crime rate of the two.
Avg House Price
Cardiff
£334,109
St Athan
£245,325
Crime Rate
Cardiff
96.8
St Athan
63.1
Top-Two School Inspection Bands
Cardiff
N/A
St Athan
N/A
Avg Download Speed
Cardiff
483.3
St Athan
467.1
EPC Rating
Cardiff
73.7
St Athan
70.7
Median Income
Cardiff
£31,540
St Athan
£32,675
House Prices (2025)
Most affordable in WalesProperty in Cardiff commands an average of £334,109, compared with £245,325 in St Athan – a difference of 36%. The most affordable entry point in Cardiff is a flat at £173,611, while in St Athan it is a terraced at £160,726.
Average Price by Property Type (2025)
Biggest gap: terraced homes are 74% pricier in Cardiff (£278,958 vs £160,726).
Price Trend (11 Years)
Over the last 9 years, Cardiff prices grew faster — 27% vs -38%.
Crime & Safety
Safest in WalesResidents of St Athan experience less crime overall, with a rate of 63.1 per 1,000 versus 96.8 per 1,000 in Cardiff. The most common crime category in Cardiff is violent-crime, while in St Athan it is violent-crime.
Crime Rate by Category (per 1,000 residents)
Both towns share the same top crime category: violent crime.
Schools & Education
Best for schools in WalesSchool quality data is not fully available for both Cardiff and St Athan. Cardiff has 0 schools and St Athan has 0 schools.
Cardiff School Inspection Breakdown
St Athan School Inspection Breakdown
| Metric | Cardiff | St Athan |
|---|---|---|
| Total Schools | 0 | 0 |
| Primary | 0 | 0 |
| Secondary | 0 | 0 |
| % Top two bands | N/A | N/A |
Broadband & Connectivity
Average broadband speeds are 483.3 Mbps in Cardiff and 467.1 Mbps in St Athan. Superfast coverage (30 Mbps+) reaches 98.6% of premises in Cardiff and 96.9% in St Athan. Gigabit availability stands at 95.2% in Cardiff and 92.4% in St Athan.
Cardiff is the faster of the two by 3% on average download speed (483 vs 467 Mbps).
Energy Efficiency & Running Costs
Cardiff leads on energy efficiency with an average EPC score of 73.7 (C), while St Athan averages 70.7 (C). Estimated annual energy costs average £944 in Cardiff and £1,270 in St Athan. 73.5% of homes in Cardiff have an EPC rating of C or above, compared to 62.2% in St Athan.
Cardiff has more energy-efficient housing — 73.5% reach band C or above, vs 62.2% in the other.
Demographics & Economy
Median household income is £32,675 in St Athan and £31,540 in Cardiff. The median age is 39 in Cardiff and 45.1 in St Athan. Owner-occupancy is 58% in Cardiff versus 71.9% in St Athan. Employment rates stand at 54.1% in Cardiff and 55.8% in St Athan.
| Indicator | Cardiff | St Athan |
|---|---|---|
| Population | 347,880 | 3,108 |
| Median Age | 39 | 45.1 |
| Median Household Income | £31,540 | £32,675 |
| Employment Rate | 54.1% | 55.8% |
| Owner Occupied | 58% | 71.9% |
| Degree-Level Qualified | 40% | 37.3% |
Location
Common questions
Frequently asked questions
How far apart are Cardiff and St Athan?
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