Distance between cities › USA › Texas › Castroville, TX › Distance from Castroville to Erwin Book Hotels

Distance from Castroville, TX to Erwin, SD

Distance

1,159 mi

Time

21 hours 10 mins

Gas Cost

$108 - $210

There are 1,048.45 miles from Castroville to Erwin in north direction and 1,159 miles (1,865.23 kilometers) by car, following the I-135 route.

Castroville and Erwin are 21 hours 10 mins far apart, if you drive non-stop .

This is the fastest route from Castroville, TX to Erwin, SD.

Castroville, TX and Erwin, SD are in the same time zone (CDT). Current time in both locations is 4:13 am.

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Lowest Price Rental Cars in Castroville, TX

Planning on renting a car to go from Castroville, TX to Erwin, SD? Here there are some offers to rent a car in Castroville, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Castroville »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 46.54 gallons of gas to cover the route between Castroville, TX and Erwin, SD.

The estimated cost of gas to go from Castroville to Erwin is $151.81.

During the route, an average car will release 911.79 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Castroville, TX and Erwin, SD

If you want to meet halfway between Castroville, TX and Erwin, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 36.739276 and -97.345753, or 36º 44' 21.3936" N, 97º 20' 44.7108" W. This location is 579.41 miles away from Castroville, TX and Erwin, SD and it would take approximately 10 hours 35 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Tonkawa, OK, situated 577 miles from Castroville, TX and 586 miles from Erwin, SD. It would take 10 hours 13 mins to go from Castroville to Tonkawa and 11 hours 7 mins to go from Erwin to Tonkawa.

Major Cities Along the Route

Some major cities along the route include Fort Worth, TX, Norman, OK, Waco, TX, Round Rock, TX, Denton, TX, Wichita, KS, Austin, TX and Oklahoma City, OK.