Town · 12,715 residents
Good · better than 1 in 10 towns
Check Local Score out of 100 · 60 is typical for the country
Each arc is a topic, coloured by its score
Map outline: Official built-up area
Mountain Ash scores 55/100 overall, which the scorecard rates as good — 60 is typical for the country.
No topic reaches "very good" (70+); its best is affordability (68).
It scores lowest on food & drink (38).
Scores come from official data on safety, schools, transport, prices, health, food & drink and the local environment, for Mountain Ash in Wales, each measured against the national average.
Terraced rows climb the valley sides here in long Victorian streets, the kind of streetscape that tells you this was built for coal and never quite rebuilt itself around anything else. It's a town of narrow high street shops, chapels turned into whatever chapels get turned into, and a skyline that's more hillside than skyscraper. You notice the age of the building stock before you notice much else — solid, terraced, unmistakably valleys.
The number that matters most for the practical stuff is the price: a median house sale around £102,500, against a Welsh average nearer £208,000, and even against Rhondda Cynon Taf itself you're looking at homes selling for close to 17% less than the county norm. Almost everything that changes hands is a freehold terrace — 68 of the 84 recent sales — so a For Sale board here is nearly always advertising the same thing: a two-up two-down with no service charge and no leasehold small print. Getting around doesn't depend on a car alone; Mountain Ash has its own station along with Fernhill and Penrhiwceiber close by on the same line, useful if you're commuting toward Cardiff. Schooling is dominated by primaries — Caegarw, Darrenlas, Miskin, Pengeulan, Glenboi and Penrhiwceibr among them — feeding into Mountain Ash Comprehensive, a genuinely large secondary at over 900 pupils, so there's no shortage of school places even if the individual Estyn judgements aren't part of this picture.
Green space is generously provided for a town this size — 37 separate spaces adding up to nearly 29 hectares, well above the Welsh average per head — so the hills and valley paths are doing real work for anyone who wants to walk rather than drive. What's harder to ignore is the crime picture: violence and sexual offences alone account for nearly half of all recorded crime, and the overall rate sits substantially higher than the Rhondda Cynon Taf average. That's the one grade that breaks the pattern — an area that scores well on health, environment and schools, yet only mid-table on safety. It's worth sitting with that contrast rather than skating past it: this isn't a place that feels unsafe to walk through, by most accounts, but the numbers say something the streetscape doesn't.
Income and deprivation figures place Mountain Ash toward the harder end nationally — Wales's second most deprived decile, bottom decile for income — which shows up not in shabbiness so much as low property prices and a rental market that, at £754 a month, tracks the Welsh average almost exactly despite the far cheaper homes. This suits people who want space and a house of their own for relatively little outlay, who don't mind a former industrial town's rhythms over a city's, and who are comfortable weighing genuinely strong green space and school provision against a crime rate that asks more questions than the rest of the picture answers.
Data last updated: 19 October 2026
Pick another area to line them up side by side — the verdict, both Check Local Scores, and what actually separates them.