The cleanest - and the dirtiest - streets in Wales have been revealed in a new survey released by Keep Wales Tidy.

Every year, staff from the charity survey thousands of streets in every corner of Wales.

And officials hope the the independent results allow local authorities target problem hot spots as well as specific issues - such as fly-tipping or dog fouling.

The annual survey gives streets of each county an "overall cleanliness grade" based on how much litter and dog fouling is present, ranking from A (cleanest) to D.

It report found that the streets in Anglesey are the cleanest, while Newport had the dirtiest.

A spokeswoman for Newport City Council said: "While the council has seen a slight reduction in performance compared with last year, the statistics show than the majority of streets have good standards in relation to levels of litter.

"The council is targeting additional litter enforcement, a review of existing litter bin provision, raising awareness with residents about the environmental damage caused by litter and the continued support of volunteer litter-picking groups.

"During 2019/2020, efforts will be concentrated on areas where standards are lower.  Everyone living and working in the city deserve to have a pleasant environment and the changes we will shortly be introducing will provide a much more consistent level of cleansing throughout the entire city."

Anglesey was the only one in the whole of Wales to have 100% of streets surveyed graded B or above, Newport with 89.6% graded B or above.

Denbighshire was awarded second place, with a total of 98.7% of streets achieving grade B or higher.

And North Wales had five of the six counties in the region listed in the top ten.

WalesOnline held its first beach clean in association with Keep Wales Tidy at Aberavon beach

However, results took a dip down south with Newport having the lowest score for cleanliness (64) as well as the lowest percentage (89.6%) for clean streets as well. 

Carmarthenshire, which was was second from the bottom, with 91.2% getting a minimum grade B.

During the survey, they measured the quality of the local environment by recording:

• Street cleanliness grade based on how much litter and dog fouling is present

• Types and sources of litter present

• Amount of graffiti, vandalism, fly-posting, dog fouling, weeds, detritus and chewing gum staining visible.

According to the study, smoking-related litter - such as discarded cigarette butts - is still the most common type of litter in Wales.

Confectionery litter, however, has seen a more significant decline over time, now recorded on just over half of our streets.

Levels of dog mess found on the streets remained at just under 10% - similar to levels seen in the last few surveys.

A spokesman said: "We are encouraged by the improvement seen in many issues included as part of our surveys this year, with some achieving their best results recorded to date.

"However, many everyday items such as those relating to smoking, eating and drinking continue to be commonly recorded on our streets. Not only does this litter spoil our enjoyment of our towns and countryside, but they pose a threat to our fragile environment and precious wildlife."

Keep Wales Tidy Survey Results 2018-19

Local Authority Cleanliness Indicator Score % of Streets Graded B and Above
Anglesey 74.6 100
Blaenau Gwent 64.9 94.1
Bridgend 67.7 96.7
Caerphilly 68.2 97.9
Cardiff 67.3 96
Carmarthenshire 77.9 91.2
Ceredigion 83.6 97.8
Conwy 72.3 97.5
Denbighshire 74 98.7
Flintshire 70.6 95.8
Gwynedd 73.6 98.6
Merthyr Tydfil 66.3 95.5
Monmouthshire 67.4 95.8
Neath Port Talbot 65.9 93.8
Newport 64 89.6
Pembrokeshire 83.2 94.6
Powys 66.4 94.6
Rhondda Cynon Taf 66.7 97.6
Swansea 67.1 96.4
Torfaen 67.4 96.6
Vale of Glamorgan 69.4 96.1
Wrexham 70.0 97.4

Keep Wales Tidy surveyed a total of 3,216 streets across Wales between April 2018 and March 2019.

You can read the full report here .

Newport and Carmarthenshire councils have both been asked to comment.