Suburb fuel prices

Cheap Diesel in St Marys New South Wales 1790

5.5c below the New South Wales average — St Marys is 16.9c/L under its 30-day average right now — near the bottom of the cycle.

Prices as of 22 min ago AEST · sourced from FuelCheck

NEW SOUTH WALES state averageAll fuelsU91E10DieselP. DieselP98
St Marys · DieselBelow the state avg

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Diesel in St Marys is cheaper than the New South Wales average

St Marys sits 5.5c below the New South Wales average. St Marys is 16.9c/L under its 30-day average right now — near the bottom of the cycle.

NEW SOUTH WALES average

How it compares

  • New South Wales state avg187c/L-5.5c/L
  • National avg193.2c/L-11.7c/L
  • Wholesale (TGP)170.9c/L+10.6c/L

Top stations

Cheapest Diesel stations in St Marys

Sorted by current Diesel price. Tap a station for grades, directions and price age.

  1. Speedway North St Marys

    Speedway North St Marys

    Cheapest

    4.7 km away · 91 Glossop St, North St Marys

    178.5 c/L

    -3.0 vs avg

  2. Pearl Energy Colyton

    Pearl Energy Colyton

    6.5 km away · 86 GREAT WESTERN HWY, COLYTON

    179.5 c/L

    -2.0 vs avg

  3. Shell Reddy Express St Marys

    Shell Reddy Express St Marys

    3.3 km away · 61-63 CHRISTIE ST, ST MARYS

    182.9 c/L

    +1.4 vs avg

  4. BP St Marys (Forrester Road)

    BP St Marys (Forrester Road)

    4.0 km away · 120-128 Forrester Road, ST MARYS

    184.9 c/L

    +3.4 vs avg

  5. Independent Riverstone

    Independent Riverstone

    9.5 km away · 129 Piccadilly St, Riverstone

    172.7 c/L

    -8.8 vs avg

  6. Metro Marsden Park Truck Stop

    Metro Marsden Park Truck Stop

    5.7 km away · 365 GARFIELD RD WEST, MARSDEN PARK

    173.9 c/L

    -7.6 vs avg

Showing 6 of 18 stations.

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30-day spread · Diesel

St Marys Diesel cycle

St Marys is currently 16.9c/L below its 30-day average — a relatively good time to fill up.

30-day low

178.5c/L

Lowest point in the local spread

30-day average

199.8c/L

30-day high

227.9c/L

Today's average

182.9c/L

178.0203.0228.025 May11 June24 June
Daily averageMin–max spread across St Marys stations

Cheapest Diesel right now

  1. 1Independent RiverstoneIndependent · 9.5 km away172.7 c/L1.0
  2. 2Metro Marsden Park Truck StopMetro · 5.7 km away173.9 c/L3.0
  3. 3Ampol Foodary Marsden ParkAmpol · 6.3 km away176.9 c/L2.0
  4. 4OTR Marsden Park NorthShell · 6.0 km away177.9 c/L2.0
  5. 5Speedway North St MarysSpeedway · 4.7 km away178.5 c/L1.0

Source: Reported Diesel pump prices across St Marys.

7-day outlook

St Marys 7-day Diesel outlook

Falling · -5.5c/L over 7 days

St Marys prices follow the Central Coast cycle, so this outlook takes the Central Coast 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

183.0c/L

Predicted in 7 days

177.5c/L

7-day range

175.4 – 184.4c/L

174.0179.5185.0WedThuFriSatSunMonTue
Predicted price90% confidence band
See full 30-day forecastHow accurate is this?

All fuel types

Fuel prices in St Marys by type

Low, average and high for each fuel type from the 4 stations tracked here.

FuelLowAvgHighStationsCheapest at
E10152.5c153.0c153.9c4Speedway North St Marys
U91154.5c155.0c155.9c4Speedway North St Marys
P98171.5c177.5c182.9c4Speedway North St Marys
DSL178.5c181.5c184.9c4Speedway North St Marys

Nearby suburbs

Suburbs near St Marys

How St Marys compares to neighbouring areas — cheapest first, delta vs the St Marys average.

  1. Bo
    Box HillCheapest

    179.7c

    -1.8vs St Marys
  2. Ma
    Marsden Park

    179.7c

    -1.8vs St Marys
  3. Ri
    Riverstone

    179.7c

    -1.8vs St Marys
  4. Vi
    Vineyard

    179.7c

    -1.8vs St Marys
  5. Ma
    Maraylya

    179.7c

    -1.8vs St Marys
  6. Be
    Berkshire Park

    179.7c

    -1.8vs St Marys
  7. Ne
    Nelson

    179.7c

    -1.8vs St Marys
  8. Oa
    Oakville

    179.7c

    -1.8vs St Marys
  9. St
    St MarysYou

    181.5c

    0.0vs St Marys

At a glance

St Marys fuel prices at a glance

Cheapest Diesel
178.5 c/L
Suburb average
181.5 c/L
Price range
6.4c spread
Stations tracked
4
Brands
4
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 Diesel map.

St Marys snapshot

Live Diesel prices in St Marys

Today's prices

In St Marys, New South Wales, the cheapest E10 today is 152.5c with an area average of 153.0c across 4 listed stations. Other fuels tracked in this suburb include U91 from 154.5c, P98 from 171.5c and DSL from 178.5c.

How it compares

St Marys is currently 5.5c below the New South Wales state average of 187.0c. 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 172.7c), Marsden Park (from 172.7c), Riverstone (from 172.7c), Vineyard (from 172.7c) or Maraylya (from 172.7c) before planning a fill-up.

Brands operating here

4 fuel brands operate stations in St Marys, including Reddy, BP, Speedway and Pearl. Brand loyalty programs and discount apps can shift the cheapest pump by 4–6c/L on any given day.

Frequently asked

St Marys fuel questions

The cheapest Diesel in St Marys is currently at Independent Riverstone for 172.7 c/L.

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