Comal market analysis
Comal County's numbers put it squarely in appreciation territory, but the appreciation case is thin right now. The gross rent-to-price ratio sits at 0.43%, annualizing to roughly 5.2%, and the modeled cap rate comes in at 2.81%. At a $431,172 median purchase price with a 6.85% mortgage, the investment model spits out a monthly cash flow of negative $1,249 and a cash-on-cash return of -15.11%. Prices are also down 1.04% year-over-year, so you're not getting compensated with near-term appreciation to offset that carry loss. The affordability index of 38 signals that a meaningful share of the local population is priced out of ownership, which theoretically supports rental demand, but median rent of $1,555 cannot service the debt on a $431,000 asset at today's rates. This is a market where the math simply does not work for a conventional leveraged buy-and-hold at current prices and financing costs.
The investor profile that makes any sense here is a patient, low-leverage appreciation buyer who believes the San Antonio metro's long-run growth story will eventually close the price-to-rent gap. A cash-flow buyer has no business underwriting at these numbers: negative $1,249 per month is not a rounding error, it's a structural deficit baked into the price-income relationship. A value-add operator faces the same ceiling because rent upside is constrained by the local affordability index of 38, so even aggressive repositioning is unlikely to move the needle enough to turn positive carry. If you're buying here, you're making a call on price appreciation recovering from the current -1.04% trend, and you need either a very long hold period or a substantially larger down payment to neutralize the cash drain.
Tax and insurance costs deserve serious attention on any underwrite for this county. The state-average effective property tax rate in Texas is 1.80%, flagged here as high, and on a $431,172 asset that translates to $7,761 annually in property taxes alone. Combined with estimated annual insurance of $2,156, the monthly tax-and-insurance burden is $826 before you touch mortgage principal and interest, management fees, maintenance, or vacancy reserves. At 1.80%, the rate is high enough to deserve its own line on your underwrite, and you should verify the actual Comal County and township rate directly before closing, since the 1.80% figure is a state-average estimate from Tax Foundation 2024 and local rates can deviate materially in either direction.
The concentration risk here is geographic and price-point specific. Comal is a growth suburb of San Antonio, and its investment performance is highly correlated with the broader metro's ability to keep absorbing population at price points above $400,000. With home prices down year-over-year and an affordability index of 38, the market is showing early signs of demand hesitation at current levels. There are no vacancy or crime statistics in the provided data to cite, but the combination of a thin cap rate, negative cash flow, and declining prices is a risk cluster that warrants conservative underwriting assumptions on vacancy and rent growth.
Compared to the neighboring counties in the dataset, Comal's overall score of 42 is roughly in line, but its $431,172 median price is dramatically higher than every neighbor shown. Bandera County is the closest comparable at $329,463 with an overall score of 44, meaning it scores slightly better while carrying $100,000 less price exposure. Shackelford County ($148,074, score 44) and Willacy County ($169,393, score 42) both score at or above Comal at a fraction of the price, though those markets represent entirely different economic profiles and investor use cases. Hardeman and Cochran counties at $62,124 and $46,534 respectively are deep-value, low-liquidity markets that don't compete with Comal on any metric an appreciation buyer cares about. The honest comparison is Bandera: if you're drawn to the Hill Country growth corridor and can tolerate thin yields, Bandera delivers a comparable score with meaningfully lower price risk per door. Choose Comal over its neighbors only if you have a specific thesis about New Braunfels or the I-35 corridor that you believe is not yet priced into Bandera, and even then, run the numbers at 20-25% down to understand what it takes to approach breakeven carry.
Scenario comparison
| Scenario | Purchase price | Monthly cash flow | Cap rate | Cash-on-cash |
|---|---|---|---|---|
75% of median value-add or distressed | $323,379 | -$684/mo | 3.8% | -11.0% |
Median typical MLS deal | $431,172 | -$1,249/mo | 2.8% | -15.1% |
125% of median newer / premium | $538,965 | -$1,814/mo | 2.3% | -17.6% |
Price History
Median Home Price
Median Rent
Historical data from Zillow ZHVI/ZORI
Quick Investment Calculator
Purchase
Monthly Cash Flow
* Based on county median values. 35% expenses include taxes, insurance, maintenance, vacancy, and property management. Actual results vary by property.
Score Breakdown
Based on 4.33% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.
Based on -1.0% YoY price growth. Moderate growth (3-8%) scores highest.
Population data not available.
Based on price relative to estimated local incomes.
Scores are calculated using real Zillow home value and rent data, Census population data, and economic indicators. The weighted average produces the overall investment score. Markets with missing rent data use estimated values based on regional averages.
Investment Outlook
Strengths
- +Complete rent data available
Challenges
- -Below-average rent-to-price ratio (4.33%)
- -Declining home values (-1.0% YoY)
- -Negative cash flow at typical financing (-$1,249/mo)
- -Negative leverage (cap rate 2.8% < mortgage rate 6.9%)
Economic Indicators
Who this market fits
- +All-cash buyers: removing debt service flips the cap rate to actual yield
- −You need positive cash flow on day one at typical leverage
- −You can't tolerate negative leverage (cap rate below mortgage rate today)
- −You expect appreciation to carry the deal, but prices have declined year over year
- −You rely on FHA-style financing: prices are stretched relative to local incomes
Compare to Nearby Counties
The Bottom Line
Comal County in Texas scores 42/100, ranking #731 of 1,000 US counties (top 93%). At 20% down and current rates, a median-priced rental loses about $1249/month; the 4.33% gross rent-to-price ratio doesn't survive debt service. The thesis here is appreciation, value-add, house hacking, or all-cash.