Total monthly cost of ownership
Cost to Own a Home in St. Augustine South, Florida
A $319,000 home here costs
$2,457per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,640. The real number is $817 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.
St. Augustine South against St. Johns County and Florida
| Measure | St. Augustine South | St. Johns County |
|---|---|---|
| Median home value | $319,200 | $457,600 |
| Median property tax | $1,852 | $3,547 |
| Effective tax rate | 0.580% | 0.775% |
| Median gross rent | $1,452 | $1,775 |
| Population | 4,864 | 292,243 |
The weather behind that power bill
St. Augustine South sits in St. Johns County, which averages a high of 91.0°F in its hottest month and a low of 47.8°F in its coldest, with 50.64" of precipitation a year and 38% of it in a single three-month stretch. That climate drives 3,079 cooling and 803 heating degree days, which is what sets the $136 electricity line above.
See the full climate breakdown for St. Johns County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in St. Johns County
Full St. Johns County cost breakdown · Every county in Florida
Common questions
How much does it cost to own a home in St. Augustine South?
A $319,000 home in St. Augustine South, Florida costs approximately $2,457 per month with 20% down at 6.66%. That is $1,640 principal and interest, $154 property tax, $193 homeowners insurance, $204 utilities and $266 set aside for maintenance.
What is the property tax rate in St. Augustine South?
St. Augustine South has an effective property tax rate of 0.580%, based on a median home value of $319,200 and median real estate taxes of $1,852. That is lower than the St. Johns County average of 0.775%.
What is the average home price in St. Augustine South?
The median owner-occupied home value in St. Augustine South, Florida is $319,200, against $457,600 across St. Johns County.
Is it cheaper to rent or buy in St. Augustine South?
Median gross rent in St. Augustine South is $1,452 a month, against $2,457 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 St. Augustine South — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Florida.
- 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.