Birmingham-based Saga 105.7fm is celebrating after turning around a recent dip in fortunes to claim 25,000 extra listeners.
The number of people tuning in on an average week - known as weekly reach - increased in the second quarter from 390,000 to 415,000.
And the Radio Joint Audience Research (RAJAR) figures showed the station's audience was up by 9,000 year-on-year.
Saga targets listeners aged between 50 and 69 as its core audience.
Phil Dixon, managing director of the Hagley Road operation, accepted the figures marked a change in fortunes.
He said: "It's difficult to know what you are going to get with RAJAR sometimes and certainly we did not think the last two sets of results really reflected what we were trying to do."
The latest figures for the quarter to June 25 were "a healthy increase on the last quarter".
He said: "They reflect the kind of very positive feedback we have been getting from listeners. We have recently made changes to our daytime programming and I expect these will increase our audience even further."
BBC WM (Birmingham and Black Country) has seen its weekly reach rise over recent RAJAR results.
It continued its upwards march with a quarter-on-quarter increase from 324,000 to 353,000.
Keith Beech, managing editor, said: "This is the third increase for us in a row and it is encouraging our audience has grown over the past year even though the market has become more competitive."
Chrysalis-owned 100.7 Heart fm, based on Birmingham's Broad Street, was a top weekly reach performer in the previous set of RAJAR figures - but took a knock by comparison in the latest round.
The station shed 20,000 listeners with the latest total standing at 820,000 from 840,000.
Listening hours grew by three per cent from 7.9 million to 8.1 million per week.
Andrew Robson, programme director, said: "We have spent a lot of time asking potential listeners what they'd love to hear. We've made a number of changes to the line-up, the music and the imaging of the station within the last 12 months and this is, without doubt, paying off."
Sister station Galaxy Birmingham enjoyed a boost in its weekly reach figures, up from 311,000 to 348,000.
Gcap's BRMB saw its reach drop to 519,000 from 532,000.
Programme controller Adam Bridge said: "It's an interesting RAJAR this time - broader remit stations such as ourselves seem to have lost on reach but gained in hours. We're far from downhearted. We've seen reach grow for five RAJARs in a row before this blip, and year-on-year the figure's up 66,000."
Emap owned-guitar rock station Kerrang! 105.2 was launched in Birmingham in 2004 and has been on a steady march upwards.
However the latest set of figures show a dip in weekly reach of 3,000.