Flemington Costco Gas Prices

2A Walter E Foran Blvd N, Flemington, New Jersey, 8822

(908) 905-7210 Directions

Latest prices

  • Regular
    $4.219

    USD per gallon

    Last updated 18 hours ago
  • Premium
    $4.939

    USD per gallon

    Last updated 18 hours ago
  • Diesel
    N/A

Compared with the New Jersey average (Sep 20)

  • Regular: $4.219 vs $4.426 state average — $0.207 below
  • Premium: $4.939 vs $5.268 state average — $0.329 below

State averages are published by AAA for all stations in New Jersey, in US dollars per gallon. Both figures use the same measurement basis; nothing is converted.

Price trends & fill-up guidance

Latest recorded

$4.219 Last updated 3 days ago

Change since previous price

−$0.040from $4.259

30-day range

$3.849 – $4.259latest price is near the high end of this range

Direction over 30 days

RisingTypical change $0.060 about every 1 days

Best day to fill up

No consistent cheaper weekday found. Weekday comparison needs at least 8 well-covered weeks in the last 90 days; this station has 2.

Next 24 hours

Not enough consistent data for a reliable forecast.

Recorded regular prices, last 30 days (US dollars per gallon)

This station New Jersey average (AAA)

Breaks in the line are periods with no recorded observation. Missing days are left blank rather than assumed unchanged.

View recorded prices (14)
  • 2026-09-17 04:07 UTC$4.219
  • 2026-09-16 04:07 UTC$4.259
  • 2026-09-15 04:08 UTC$4.099
  • 2026-09-13 04:07 UTC$4.219
  • 2026-09-12 04:08 UTC$4.199
  • 2026-09-11 04:07 UTC$4.139
  • 2026-09-10 04:07 UTC$4.119
  • 2026-09-06 04:08 UTC$4.059
  • 2026-09-04 20:42 UTC$3.999
  • 2026-09-03 04:11 UTC$3.939
  • 2026-09-01 17:07 UTC$3.959
  • 2026-08-31 04:06 UTC$3.899
  • 2026-08-27 07:20 UTC$3.859
  • 2026-08-24 21:12 UTC$3.849
How this is calculated

Figures use this station's own recorded observations in US dollars per gallon; prices are never converted between currencies or units, and records with a different measurement basis are excluded. Repeated recordings of an unchanged price are counted as checks, not as new price observations, so frequently scraped days do not carry extra weight. Weekday comparisons use one value per local day in the station's timezone and compare weekdays within the same week, so a general rise or fall over time does not create a false pattern; they are published only with at least 8 weeks covering 5+ days each, the weekday present in at least 6 of them, and a difference that survives a resampling check over whole weeks. An outlook is published only when a simple trend model beats an unchanged-price baseline on at least 30 rolling chronological holdout forecasts, each scored against a real later observation within 12 hours of the horizon. Missing observations are never filled in.