Round Rock, TX
6 stations
LiveUpdated Jun 21Gas prices near 78681
Round Rock, TX · TX average $3.45/gal
Stations near you
Gas Price Check
Round Rock, TX · 78681
- Cheapest
- $3.28/gal
- Area avg
- $3.45/gal
You save17¢/gal
Keep exploring
Track current gas prices in the 78681 ZIP code serving Round Rock, Texas. Fuel costs here reflect regional market conditions influenced by Gulf Coast refinery operations and local demand. Station prices shift regularly throughout the day, so checking current rates before filling up helps you find the best available prices in your area.
Today’s lowest gas prices in 78681
- 1. Texaco at 2255 CR-172 offers regular at $3.28/gal (2.2 mi away).
- 2. Murphy USA at 1600 Round Rock Ave. offers regular at $3.29/gal (0.5 mi away).
- 3. Circle K at 1515 Round Rock Ave offers regular at $3.29/gal (0.5 mi away).
- 4. Circle K at 15900 UR-620 N offers regular at $3.49/gal (2.2 mi away).
- 5. Shell at 2400 N IH-35 offers regular at $3.49/gal (3.0 mi away).
Prices are aggregated from station-level data and refreshed daily.
Nearby ZIP codes in Round Rock, TX
How to save more on gas in Round Rock
1. Use warehouse clubs
Costco and Sam’s Club typically price 15-25 cents per gallon below nearby stations. Membership pays for itself within a few fill-ups.
2. Fill up early in the week
Stations often raise prices Thursday for weekend demand. Fill up Monday through Wednesday to avoid the lift.
3. Keep tires properly inflated
Properly inflated tires improve fuel economy by up to 3 percent at current prices. Check pressure once a month.
4. Check back tomorrow
Prices can shift 10-20 cents overnight during volatile markets. A quick check before you leave home avoids paying yesterday’s spike.
5. Pay cash at split-pricing stations
Stations with cash and credit split pricing typically save an average of 10 cents per gallon when you pay cash.
Related guides
Deep-dives on US gas-price topics relevant to this area.
Brand
Buc-ee's gas prices
29 travel-stop locations across Texas and 8 Southeast states.
Brand
H-E-B gas prices in Texas
Texas-only chain with fuel stations across Houston, San Antonio, Austin, and more.
Research
Why gas prices rise faster than they fall
Asymmetric pass-through in US retail gasoline (rockets and feathers).
Directory
US gas station brands directory
Reference for 39 major US gas station chains.
About gas prices in Texas
Texas runs one of the lowest gas tax rates in the country at 20 cents per gallon, and its location next to the Gulf Coast refining belt (which produces roughly 40 percent of US refined fuel) keeps prices consistently below the national average. Buc-ee's, Costco, and Sam's Club draw the cheapest pump prices across Houston, Dallas, Austin, and San Antonio metros, while HEB Fuel and Kroger Fuel are competitive grocery options. Watch for noticeable Friday afternoon hikes in Houston, Dallas, and Austin during peak summer driving season, when local demand briefly outpaces supply.