Cost to Own
United StatesSouth CarolinaAnderson CountyWilliamston Population 4,116 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Williamston, South Carolina

A $157,000 home here costs

$1,319

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $807. The real number is $511 higher every month — 63% more than the payment most buyers budget for.

Williamston median: $156,700
Under 20% adds PMI
Freddie Mac PMMS
US 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, $125,600 borrowed $807
Property tax0.699% effective rate for Williamston itself $91
Homeowners insuranceSouth Carolina averages $1,432/yr (NAIC), or 0.578% of home value $76
Electricity16.18¢/kWh — South Carolina residential average, EIA $145
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $131
Total monthly $1,319

Williamston against Anderson County and South Carolina

MeasureWilliamstonAnderson County
Median home value$156,700$212,500
Median property tax$1,095$985
Effective tax rate0.699%0.464%
Median gross rent$860$952
Population4,116207,218

The weather behind that power bill

Williamston sits in Anderson County, which averages a high of 90.7°F in its hottest month and a low of 32.5°F in its coldest, with 50.25" of precipitation a year and 28% of it in a single three-month stretch. That climate drives 1,864 cooling and 2,935 heating degree days, which is what sets the $145 electricity line above.

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

Other cities in Anderson County

Full Anderson County cost breakdown · Every county in South Carolina

Common questions

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

A $157,000 home in Williamston, South Carolina costs approximately $1,319 per month with 20% down at 6.66%. That is $807 principal and interest, $91 property tax, $76 homeowners insurance, $213 utilities and $131 set aside for maintenance.

What is the property tax rate in Williamston?

Williamston has an effective property tax rate of 0.699%, based on a median home value of $156,700 and median real estate taxes of $1,095. That is higher than the Anderson County average of 0.464%.

What is the average home price in Williamston?

The median owner-occupied home value in Williamston, South Carolina is $156,700, against $212,500 across Anderson County.

Is it cheaper to rent or buy in Williamston?

Median gross rent in Williamston is $860 a month, against $1,319 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 Williamston — 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