Quick Answer: Loop 1604 San Antonio is the city's outer beltway, a roughly 95-mile loop that circles the metro and carries traffic past UTSA, La Cantera, and The Rim. The northern stretch of Loop 1604 in San Antonio is now a modern freeway anchored by the tallest highway flyover ramp in Texas.
Few roads shape daily life in the Alamo City like Loop 1604 San Antonio. It rings the entire metro, connects the fastest-growing suburbs to jobs and campuses, and now holds a record-setting interchange on its northwest side. If you're weighing a move to the northwest side, Onyx at Oslo sits right in the heart of this corridor, minutes from UTSA and the La Cantera shopping district.
What Is Loop 1604 in San Antonio?
Loop 1604 is the outer of San Antonio's two beltways, wrapping about 95 miles around Bexar County. State records name it the Charles W. Anderson Loop, after a former county judge who pushed for an outer ring in the 1950s. The inner loop, I-410, sits closer to downtown.
The northern arc does the heavy lifting. From US 90 on the far west side around to I-35 in the northeast, TxDOT has rebuilt Loop 1604 in San Antonio into a controlled-access freeway, while the southern half still runs as a quieter two-lane and divided highway through rural Bexar County. That northern freeway is where most residents, students, and shoppers spend their time.
San Antonio is one of the fastest-growing large cities in the country, and that growth keeps pushing new neighborhoods, schools, and shopping outward toward the loop. For a lot of families, students, and commuters, Loop 1604 San Antonio is simply where the new part of the city lives.
The Texas 1604 Loop vs the 410 Loop
Locals often mix up the two rings. Here's how the Texas 1604 Loop compares to Loop 410 at a glance:
| Feature | Loop 1604 (Anderson Loop) | Loop 410 |
|---|---|---|
| Position | Outer beltway | Inner beltway |
| Approximate length | About 95 miles | About 36 miles |
| Character | Freeway north, rural south | Fully urban freeway |
| Key destinations | UTSA, La Cantera, The Rim, Six Flags | Airport, central neighborhoods |
| Newest feature | Five-level "Fiesta Stack" at I-10 | Older cloverleaf interchanges |
Both loops matter, but Loop 1604 is the one drawing new development, and it carries the corridor's marquee project.
What Makes the Tallest Highway Ramp in San Antonio (TxDOT) So Notable?
The tallest highway ramp in San Antonio (TxDOT built it) is the record-breaking flyover at the I-10 and Loop 1604 interchange. As of 2025, its tallest direct connector rises about 128 feet above the ground, roughly 13 stories, edging out Dallas's High Five to become the tallest highway flyover ramp in Texas.
Nicknamed the Fiesta Stack, this five-level Texas stack replaced an aging 1980s cloverleaf that could not keep up with today's traffic. It sits right beside The Shops at La Cantera and Six Flags Fiesta Texas, and it forms the centerpiece of the wider TxDOT Loop 1604 North Expansion, a $1.4 billion project widening the corridor from Bandera Road to I-35.
Crews began work in 2022 and opened the connectors in phases through 2025, with landscaping and frontage-road changes wrapping up later. Underneath the stack, TxDOT built an unusual four-roundabout frontage layout that engineers nicknamed the fidget spinner. For drivers new to the area, give the ramps extra room while the last pieces are finished.
There's a practical payoff behind the eye-catching height. TxDOT estimates the finished expansion will cut peak travel times on this corridor by a wide margin, a real gain on what was long ranked among the most congested roads in the state. Until every ramp opens, though, expect shifting lane patterns near UTSA Boulevard, Vance Jackson, and the La Cantera exits.
Is San Antonio a Good Place to Live on the 1604 Corridor?
For most budgets, yes. San Antonio pairs big-city amenities with costs well under the national average, which is a large part of why people ask whether San Antonio is a good place to live before relocating. As of 2026, RentCafe pegs the metro's overall cost of living roughly 9% below the U.S. average, with housing about 25% cheaper.
The northwest corridor along Loop 1604 is one of the metro's most convenient pockets. UTSA's 600-acre main campus sits right off the freeway at La Cantera Parkway, surrounded by the Medical Center, USAA, Valero, and major retail. That means a walkable neighborhood near campus puts class, work, and weekend plans within a short drive.
Affordability is the headline, but be realistic about the fine print. Texas has no state income tax, yet Bexar County property taxes run higher than in many states, and summer electric bills climb with the heat. Renters sidestep property taxes entirely, which is one reason apartment living near Loop 1604 appeals to students and newcomers testing out the area.
Living in San Antonio: Pros and Cons
Every city has trade-offs. Here's an honest look at living in San Antonio pros and cons for anyone eyeing the corridor:
- Lower costs: Housing, utilities, and groceries generally run below national benchmarks, and Texas charges no state income tax.
- Strong job base: Joint Base San Antonio, USAA, H-E-B, Toyota, and a large medical sector anchor employment.
- Outdoor lifestyle: Mild winters, the River Walk, and Hill Country trails support year-round time outside.
- Hot summers: Temperatures regularly top 100 degrees, so reliable air conditioning is a must.
- Car-dependent: Public transit is limited, so most trips along the 1604 corridor happen by car.
Renters who want the upside without the guesswork tend to look for move-in-ready homes near campus. Living in San Antonio Texas on this side of town means quick access to shopping and the freeway, plus modern studio, one, and two-bedroom floor plans and resort-style community amenities built for that lifestyle.
Frequently Asked Questions
1. How long is Loop 1604 around San Antonio?
Loop 1604 runs roughly 95 miles around Bexar County, making it the longer of the city's two beltways. The northern half is a full freeway, while much of the southern half remains a two-lane or divided highway. TxDOT continues to widen southern segments over time.
2. Where is the tallest highway ramp in San Antonio?
It sits at the I-10 and Loop 1604 interchange on the northwest side, near La Cantera and Six Flags Fiesta Texas. The tallest connector reaches about 128 feet, the highest highway flyover ramp in Texas, and it is part of TxDOT's Loop 1604 North Expansion.
3. Is the 1604 San Antonio area good for UTSA students?
Yes. The 1604 San Antonio corridor puts UTSA's main campus, jobs, and shopping within a short drive of nearby apartments. Students often choose this side of town for the balance of campus access, retail, and newer housing. Check current availability directly with any community you consider.
4. What are the biggest pros and cons of living in San Antonio?
The trade-offs come down to a few points:
- Pro: Low cost of living and no state income tax.
- Pro: Steady jobs across military, healthcare, and tech.
- Con: Long, very hot summers.
- Con: Limited public transit, so you will likely drive.
5. Is San Antonio a good place to live for first-time renters?
For budget-minded renters, San Antonio is a good place to live thanks to lower rents than Austin or Dallas and a growing job market. Costs still vary by neighborhood and provider, so compare current pricing and tour a few communities before signing. Property taxes and summer utility bills are worth factoring in.
Conclusion
Loop 1604 San Antonio is more than a highway. It's the spine of the city's fastest-growing side, home to a record-setting interchange and a corridor packed with campuses, jobs, and retail. For students and young professionals who want to live close to UTSA and La Cantera, this stretch of the metro is hard to beat. Explore the neighborhood, compare floor plans, and see current pricing directly before you choose your next home near the 1604 corridor.
