What does it really cost to live in San Marcos? A college town between Austin and San Antonio, San Marcos offers a cost of living near or below the national average — one of the more affordable spots in the fast-growing Austin corridor. This local guide breaks down the honest cost-of-living picture in San Marcos — housing, everyday expenses, and how to budget — plus how to get real numbers from people who actually live here. (Costs change constantly; use this as a framework and check current listings and data for exact figures.)

Is San Marcos expensive? The honest picture

San Marcos is relatively affordable — near or below the national average, and notably cheaper than Austin, driven partly by its student population (Texas State University) and location between two metros. Texas has no state income tax. Rapid I-35-corridor growth has raised costs, but it remains a value.

Housing costs in San Marcos

Housing is comparatively attainable — San Marcos offers lower home and rental prices than Austin, though student demand keeps rentals tight near campus and prices have risen with the corridor’s growth. It’s a value relative to Austin and San Antonio. For how prices vary by area, see our guide to the best neighborhoods in San Marcos.

Everyday costs in San Marcos

Everyday costs are near or below the national average, and there’s no state income tax. As a college town, some costs (student housing) run tight, but overall San Marcos is budget-friendly. It’s car-oriented, though downtown and campus are walkable.

How to budget for San Marcos

Budget housing as attainable relative to Austin, with student-rental competition near campus. No state income tax helps; San Marcos is a leading affordability play in the booming Austin–San Antonio corridor. If you’re relocating, our guide to moving to San Marcos covers the practical side.

What San Marcos locals say it really costs

Online cost calculators average away the details that actually matter — which neighborhoods are worth it, where the hidden costs hide, and how far a paycheck really goes. The most honest answers come from people living it. On Neighborhood Nurturers’ San Marcos community, real San Marcos neighbors talk candidly about what life here actually costs. Join your San Marcos neighbors free and get honest cost-of-living answers →

The headline: this is one of the affordable ones

After several very expensive cities, San Marcos is a genuine relief.

According to the Council for Community and Economic Research, the cost of living here is 10% below the national average and 2% below the Texas average — which makes it a genuinely affordable option in the Texas Hill Country, on a corridor where affordability is disappearing fast.

Average home value: about $310,919 (Zillow), down 4.1% over the past year. Median home prices are quoted around $325,000, with median sale prices in the $310,000 to $330,000 range.

For context: that is roughly a fifth of what a comparable figure buys in San Jose, and less than a quarter of San Francisco. Half an hour from Austin.

The income figure, and why it misleads

This is the number that trips people up, and it needs explaining rather than reporting.

Median household income in San Marcos is $51,281 — substantially below the Texas average and well below the national figure. Taken at face value, that suggests a poor town.

It is not that simple. Texas State University sits in the middle of this city, and a very large share of San Marcos households are student households — people aged 18 to 22, working part-time or not at all, sharing rentals near campus, and counted in the median like everyone else.

A median that includes tens of thousands of students describes the student population as much as it describes working households. It is a real number and it is not a useful proxy for what a working family here earns. Treat any analysis built on it — including third-party “affordability” and school ratings — with that in mind.

The corridor effect on housing

The single biggest factor in what happens next to these numbers.

San Marcos sits at the midpoint of the Austin–San Antonio corridor, and the population has gone from 68,199 at the 2020 census to an estimated 91,082 on 1 January 2026 — up 17.02%, growing at about 2.54% a year, with projections near 110,000 by 2035.

That growth is driven substantially by people priced out of Austin. It is the reason housing here is still affordable relative to the region and the reason that will not last indefinitely. The 4.1% year-over-year dip in average values is a pause in a longer upward trend, not a reversal of it.

Texas taxes: the trade

Texas levies no state personal income tax, and funds itself substantially through property tax instead. Hays County property tax rates are meaningful, and they should be modelled rather than assumed when comparing an offer here against an income-tax state.

At San Marcos price levels the arithmetic is generally favourable — a property tax bill on a $310,000 home is a very different proposition from one on a $1.4 million home in California — but run the number rather than trusting the headline.

What the money buys

The river. A spring-fed river at 72 degrees all year, running through the middle of town, free to swim in. There is nothing comparable at this price anywhere in the region.

Proximity. Austin about half an hour north, San Antonio about half an hour south. Two major job markets and two major music cities within commuting distance.

The Hill Country on the doorstep, and Purgatory Creek Natural Area on the edge of town.

A university, with everything that brings — dual enrolment, cultural programming, and a young population.

Reading these numbers properly

The income figure is distorted by students. This is the most important caveat on the page.

Housing is affordable now and rising structurally. The corridor is not going to stop growing.

Model the property tax, not just the price.

Sources disagree on home values by $15,000 or more, which at this price level is a meaningful percentage.

Every figure here will age. Verify before deciding.

Where the money goes each month

A few San Marcos specifics worth anticipating beyond the housing number.

You will drive. Outside downtown and the square, this town assumes a car, and many households run two. Fuel, insurance and Texas registration are a real recurring line.

The I-35 commute is a cost. If you work in Austin or San Antonio, budget the time as well as the fuel. Corridor traffic is the most common complaint residents have about living here.

Cooling, not heating. Summers are hot and long, winters mild. Air conditioning is the seasonal expense; heating is negligible.

Recreation is close to free. The river, Purgatory Creek and the square cost nothing, and in a town this size that covers most weekends.

Rental competition swings with the academic year. Looking for a lease in July is a different market from looking in January.

Who San Marcos works for

It works for people priced out of Austin who still want access to it, for anyone connected to the university, for households who want a river and Hill Country access at a price that no longer exists further north, and for buyers rather than renters at the moment.

It works less well for anyone who wants a walkable car-free life outside the small downtown, for anyone who needs a large varied city on the doorstep rather than half an hour away, and for anyone who will find a student-dominated town wearing.

That is a real fit rather than a universal one — and at these prices, on this corridor, it is a fit a lot of people are currently making.

A closing caution: because San Marcos sits on the corridor where Austin’s growth is currently landing, the numbers on this page are moving faster than in a stable market. Verify before deciding, and expect anything more than a year old to understate the housing figure.

For most people the summary is simple: San Marcos is the last genuinely affordable place on this stretch of the corridor, and that is exactly why it is filling up.

Frequently asked questions

Is San Marcos, Texas affordable?

Relatively — near or below the national average and notably cheaper than Austin, one of the more affordable spots in the Austin–San Antonio corridor, with no state income tax.

Is San Marcos cheaper than Austin?

Yes — San Marcos generally offers lower housing costs than Austin, a big part of its appeal, though corridor growth has raised prices.

What do locals say it costs to live in San Marcos?

San Marcos neighbors share candid, current cost-of-living experiences — housing, student rentals, and daily costs — in our community.