Cost to Own
United States › South Carolina › Charleston County › Summerville Population 51,262 Data vintage ACS 2023 5-Year Rates updated 2026-10-15
Before you budget for Summerville FEMA rates natural hazard risk in Charleston County Relatively High, with coastal flooding its highest-ranked hazard against other US counties. It shapes what insurers charge here. See what threatens homes in this county

Total monthly cost of ownership

Cost to Own a Home in Summerville, South Carolina

A $296,000 home here costs

$2,412

per month, all in, with 20% down at today's 7.40% 30-year fixed rate. By the 28% rule that takes a household income of about $103,500 a year.

P&I 68%Tax 6%Insurance 6%Utilities 10%Upkeep 10%

A standard mortgage calculator would have told you $1,640. The real number is $772 higher every month, 47% more than the payment most buyers budget for.

Compare Charleston County with anywhere in America · full county breakdown

Summerville median: $295,700
Under 20% adds PMI
Freddie Mac PMMS
SC average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $236,800 borrowed $1,640
Property tax0.618% effective rate for Summerville itself $152
Homeowners insuranceSouth Carolina averages $1,432/yr (NAIC), or 0.578% of home value $143
Electricity15.47ยข/kWh, South Carolina residential average, EIA $162
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $247
Total monthly $2,412

Summerville against Charleston County and South Carolina

MeasureSummervilleCharleston County
Median home value$295,700$450,800
Median property tax$1,826$1,864
Effective tax rate0.618%0.413%
Median gross rent$1,414$1,506
Population51,262414,711

Summerville extends across 3 counties. Figures here use Charleston County, where most of its housing sits.

The weather behind that power bill

Summerville sits in Charleston County, which averages a high of 87.5°F in its hottest month and a low of 43.6°F in its coldest, with 44.26" of precipitation a year and 37% of it in a single three-month stretch. That climate drives 2,448 cooling and 1,623 heating degree days, which is what sets the $162 electricity line above.

See the full climate breakdown for Charleston County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Charleston County

Full Charleston County cost breakdown · Every county in South Carolina

Talk to someone who works this market

These are Summerville averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Summerville every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Summerville I already own here and may sell

Common questions

How much does it cost to own a home in Summerville?

A $296,000 home in Summerville, South Carolina costs approximately $2,412 per month with 20% down at 7.4%. That is $1,640 principal and interest, $152 property tax, $143 homeowners insurance, $230 utilities and $247 set aside for maintenance.

What is the property tax rate in Summerville?

Summerville has an effective property tax rate of 0.618%, based on a median home value of $295,700 and median real estate taxes of $1,826. That is higher than the Charleston County average of 0.413%.

What is the average home price in Summerville?

The median owner-occupied home value in Summerville, South Carolina is $295,700, against $450,800 across Charleston County.

Is it cheaper to rent or buy in Summerville?

Median gross rent in Summerville is $1,414 a month, against $2,412 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Summerville?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Summerville, South Carolina at today's rate takes a household income of roughly $103,500 a year. That covers the full $2,412 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Summerville, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for South Carolina.
  • 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.

Full methodology