Gwynedd crime in September: 1,029 offences reported, down 19% on August

Police recorded 1,029 crimes and anti-social behaviour incidents across 71 Gwynedd neighbourhoods in September 2026, down 19% on August (1,278).

Deiniol had the most reports (85), followed by Peblig (Caernarfon) (48) and Cadnant (45). City-centre neighbourhoods usually top the table because of shops, nightlife and footfall, not because residents there are more at risk.

The sharpest rise was in Menai (Caernarfon), up 50% on August, while Gerlan was down 73% on August.

Neighbourhood by neighbourhood

Neighbourhood	September	August	Change
Deiniol	85	127	−42
Peblig (Caernarfon)	48	41	+7
Cadnant	45	54	−9
Seiont	43	59	−16
Penrhyndeudraeth	40	19	+21
Barmouth	37	46	−9
Nefyn	34	14	+20
Pwllheli North	33	30	+3
Dewi	31	53	−22
Menai (Caernarfon)	30	20	+10
Ogwen	28	43	−15
Menai (Bangor)	28	24	+4
Marchog	27	34	−7
Pentir	26	28	−2
Tywyn	22	22	0
Dolgellau South	19	18	+1
Llanystumdwy	18	15	+3
Porthmadog East	18	19	−1
Hendre	17	12	+5
Hirael	17	20	−3
Penygroes	17	9	+8
Porthmadog-Tremadog	17	20	−3
Bala	16	13	+3
Bowydd and Rhiw	15	42	−27
Dyffryn Ardudwy	14	15	−1
Dolgellau North	14	8	+6
Porthmadog West	13	24	−11
Garth	12	7	+5
Deiniolen	12	9	+3
Waunfawr	12	12	0
Corris/Mawddwy	12	11	+1
Arllechwedd	11	15	−4
Glyder	11	12	−1
Llanllyfni	11	8	+3
Llanaelhaearn	10	8	+2
Llanbedr	10	10	0
Tregarth and Mynydd Llandygai	9	15	−6
Teigl	9	23	−14
Llanrug	8	8	0
Groeslon	8	23	−15
Llanberis	8	23	−15
Abersoch	8	16	−8
Criccieth	8	7	+1
Y Felinheli	7	20	−13
Talysarn	7	11	−4
Llanbedrog	7	14	−7
Abererch	7	8	−1
Harlech	7	11	−4
Aberdovey	7	14	−7
Gerlan	6	22	−16
Morfa Nefyn	6	17	−11
Diffwys and Maenofferen	6	6	0
Dolbenmaen	5	11	−6
Pwllheli South	5	9	−4
Trawsfynydd	5	11	−6
Bryn-crug/Llanfihangel	5	3	+2
Llanwnda	4	8	−4
Llanengan	4	14	−10
Llandderfel	4	7	−3
Llanuwchllyn	4	12	−8
Llangelynin	4	11	−7
Bethel	3	7	−4
Cwm-y-Glo	3	1	+2
Efail-newydd/Buan	3	2	+1
Brithdir and Llanfachreth/Ganllwyd/Llanelltyd	3	5	−2
Bontnewydd	2	3	−1
Aberdaron	2	4	−2
Penisarwaun	1	5	−4
Botwnnog	1	0	new
Clynnog	0	4	−4
Tudweiliog	0	2	−2
Gwynedd total	1,029	1,278	−249

Figures are from North Wales Police street-level data on data.police.uk, published monthly about two months in arrears. They count reports, not convictions, and can be revised.