Suburb fuel prices
Cheap Premium Diesel in St Marys New South Wales 1790
2.6c above the New South Wales average — St Marys is 23.3c/L under its 30-day average right now — near the bottom of the cycle.
Prices as of 24 min ago AEST · sourced from FuelCheck
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P. Diesel in St Marys is dearer than the New South Wales average
St Marys sits 2.6c above the New South Wales average. St Marys is 23.3c/L under its 30-day average right now — near the bottom of the cycle.
How it compares
- New South Wales state avg183.3c/L+2.6c/L
- National avg188.3c/L-2.4c/L
- Wholesale (TGP)170.9c/L+15c/L
Top stations
Cheapest P. Diesel stations in St Marys
Sorted by current P. Diesel price. Tap a station for grades, directions and price age.
Metro St Marys
Cheapest5.8 km away · 516-526 GREAT WESTERN HWY, ST MARYS
179.5 c/L
-6.4 vs avg
Pearl Energy Colyton
6.5 km away · 86 GREAT WESTERN HWY, COLYTON
179.5 c/L
-6.4 vs avg
OTR Ropes Crossing
1.5 km away · 306 WIANAMATTA PWY, ROPES CROSSING
179.9 c/L
-6.0 vs avg
BP St Marys
4.6 km away · 76 Glossop Street, St Marys
185.9 c/L
0.0 vs avg
7-Eleven St Marys
3.2 km away · Corner Forrester Road & Christie Street, St Marys
186.9 c/L
+1.0 vs avg
7-Eleven St Marys
6.6 km away · Corner Mamre Road & Wilson Street, St Marys
186.9 c/L
+1.0 vs avg
Showing 6 of 56 stations.
30-day spread · P. Diesel
St Marys P. Diesel cycle
St Marys is currently 23.3c/L below its 30-day average — a relatively good time to fill up.
30-day low
179.5c/L
Lowest point in the local spread
30-day average
203.2c/L
30-day high
227.9c/L
Today's average
179.9c/L
Cheapest P. Diesel right now
- 1Costco Marsden Park (Members only)Costco · 5.8 km away170.7 c/L4.0
- 2Independent RiverstoneIndependent · 9.5 km away172.7 c/L1.0
- 37-Eleven Minchinbury7-Eleven · 7.2 km away173.9 c/L12.0
- 4Metro Marsden Park Truck StopMetro · 5.7 km away174.3 c/L3.2
- 5Metro LondonderryMetro · 9.4 km away175.5 c/L2.0
Source: Reported P. Diesel pump prices across St Marys.
7-day outlook
St Marys 7-day P. Diesel outlook
St Marys prices follow the Central Coast cycle, so this outlook takes the Central Coast P. Diesel forecast and adjusts it to St Marys's own price level using 90 days of local history. You can see the Central Coast benchmark alongside the local estimate below.
Central Coast is in the falling phase of its current cycle.
Central Coast today
185.2c/L
Predicted in 7 days
179.6c/L
7-day range
177.5 – 186.6c/L
All fuel types
Fuel prices in St Marys by type
Low, average and high for each fuel type from the 9 stations tracked here.
| Fuel | Low | Avg | High | Stations | Cheapest at |
|---|---|---|---|---|---|
| E10 | 151.9c | 156.3c | 173.9c | 8 | OTR Ropes Crossing |
| U91 | 153.9c | 158.4c | 175.9c | 8 | OTR Ropes Crossing |
| P95 | 171.9c | 173.9c | 176.9c | 5 | OTR Ropes Crossing |
| PDSL | 179.5c | 185.9c | 199.9c | 9 | Metro St Marys |
| P98 | 171.5c | 182.5c | 201.9c | 9 | Metro St Marys |
Nearby suburbs
Suburbs near St Marys
How St Marys compares to neighbouring areas — cheapest first, delta vs the St Marys average.
- BoBox HillCheapest
181.3c
-4.6vs St Marys - MaMarsden Park
181.3c
-4.6vs St Marys - RiRiverstone
181.3c
-4.6vs St Marys - ViVineyard
181.3c
-4.6vs St Marys - MaMaraylya
181.3c
-4.6vs St Marys - BeBerkshire Park
181.3c
-4.6vs St Marys - NeNelson
181.3c
-4.6vs St Marys - OaOakville
181.3c
-4.6vs St Marys - HaHassall Grove
185.3c
-0.6vs St Marys - DeDean Park
185.3c
-0.6vs St Marys - StSt MarysYou
185.9c
0.0vs St Marys
At a glance
St Marys fuel prices at a glance
- Cheapest P. Diesel
- 179.5 c/L
- Suburb average
- 185.9 c/L
- Price range
- 20.4c spread
- Stations tracked
- 9
- Brands
- 5
- Postcode
- 1790
- Last updated
- 24 June 2026, 3:11 pm AEST
Explore the area
Browse fuel prices around St Marys
Step up to the city and state, compare neighbouring suburbs, or open the live P. Diesel map.
St Marys snapshot
Live P. Diesel prices in St Marys
Today's prices
In St Marys, New South Wales, the cheapest E10 today is 151.9c with an area average of 156.3c across 8 listed stations. Other fuels tracked in this suburb include U91 from 153.9c, P95 from 171.9c and PDSL from 179.5c.
How it compares
St Marys is currently 2.6c above the New South Wales state average of 183.3c. Open the live fuel map to see how individual stations spread within St Marys.
Compare neighbouring suburbs
Cheaper fuel may be nearby — compare Box Hill (from 170.7c), Marsden Park (from 170.7c), Riverstone (from 170.7c), Vineyard (from 170.7c) or Maraylya (from 170.7c) before planning a fill-up.
Frequently asked
St Marys fuel questions
The cheapest Premium Diesel in St Marys is currently at Costco Marsden Park (Members only) for 170.7 c/L.
FuelRadar app
Keep St Marys fuel prices in your pocket
Track St Marys prices, watch the local cycle and get an alert before the next jump — from your phone.
