Gas prices in Round Rock, TX today
Updated Jun 14, 2026, 8:50 AM
Price by chain — today
cheapest
Refuel
$3.72
— no change
1 station nearby
QuikTrip
$3.72
— no change
5 stations nearby
Murphy USA
$3.74
— no change
2 stations nearby
Walmart
$3.75
— no change
1 station nearby
7-Eleven
$3.76
— no change
5 stations nearby
Circle K
$3.77
— no change
4 stations nearby
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Stations sorted by price
Gas prices in Round Rock, Williamson County are updated hourly.
Round Rock is a city of 119,468 residents in Central Texas.
The cheapest regular unleaded today is $3.720/gal at Refuel — filling a 15-gallon tank costs $55.80.
Compared to the Texas state average of $3.624/gal, Round Rock drivers pay close to the statewide average.
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gas price
Price per gallon
Murphy USA · Regular
$2.79
Passengers
1
2
3
4
5
6
Distance
239 mi
Houston → Dallas
Total fuel cost
—
Per person
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Nearby cities
Fuel prices & local data — Round Rock, TX ⛽
8:50 AM CT
Williamson CountyAustin MetroI-35 corridor119,468 residents719 ft elevation
Round Rock hosts Dell Technologies' corporate HQ — the city's single largest employer — and serves as the northern anchor of the Austin tech corridor.
119K
population
2.1
vehicles / household
17%
truck ownership
~$312
est. monthly fuel
What is the cheapest gas station in Round Rock, TX right now?
Refuel is currently the cheapest at $3.72/gal for regular unleaded. Prices last updated Jun 14, 2026, 8:50 AM.
Source: GasBuddy via Apify, updated Jun 14, 2026, 8:50 AM CT
How much does a full tank cost in Round Rock, TX?
At current prices, filling a 15-gallon tank costs $55.80 at Refuel. A 20-gallon tank costs $74.40.
Source: GasBuddy via Apify, updated Jun 14, 2026, 8:50 AM CT
How do Round Rock, TX gas prices compare to the Texas state average?
The Texas state average for regular is $3.62/gal. Round Rock, TX drivers pay close to the statewide average — choose Refuel to pay below average. Round Rock commuters flood I-35 south into Austin each morning; I-35 through Round Rock is one of the most congested stretches in Texas.
Source: GasBuddy via Apify, updated Jun 14, 2026, 8:50 AM CT