Total monthly cost of ownership
Cost to Own a Home in Southlake, Texas
A $958,000 home here costs
$7,407per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $4,925. The real number is $2,481 higher every month — 50% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Southlake against Tarrant County and Texas
| Measure | Southlake | Tarrant County |
|---|---|---|
| Median home value | $957,500 | $294,100 |
| Median property tax | $10,001 | $5,211 |
| Effective tax rate | 1.044% | 1.772% |
| Median gross rent | $3,501 | $1,447 |
| Population | 31,044 | 2,135,743 |
Southlake extends across 2 counties. Figures here use Tarrant County, where most of its housing sits.
The weather behind that power bill
Southlake sits in Tarrant County, which averages a high of 97.1°F in its hottest month and a low of 37.9°F in its coldest, with 38.32" of precipitation a year and 30% of it in a single three-month stretch. That climate drives 3,125 cooling and 1,992 heating degree days, which is what sets the $148 electricity line above.
See the full climate breakdown for Tarrant County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Tarrant County
Common questions
How much does it cost to own a home in Southlake?
A $958,000 home in Southlake, Texas costs approximately $7,407 per month with 20% down at 6.66%. That is $4,925 principal and interest, $833 property tax, $634 homeowners insurance, $216 utilities and $798 set aside for maintenance.
What is the property tax rate in Southlake?
Southlake has an effective property tax rate of 1.044%, based on a median home value of $957,500 and median real estate taxes of $10,001. That is lower than the Tarrant County average of 1.772%.
What is the average home price in Southlake?
The median owner-occupied home value in Southlake, Texas is $957,500, against $294,100 across Tarrant County.
Is it cheaper to rent or buy in Southlake?
Median gross rent in Southlake is $3,501 a month, against $7,407 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Southlake — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Texas.
- Electricity price — EIA Electric Power Monthly Table 5.6.A.
- Mortgage rate — Freddie Mac PMMS, refreshed weekly.
- Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.