Total monthly cost of ownership
Cost to Own a Home in Johnston, South Carolina
A $100,000 home here costs
$955per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $41,000 a year.
A standard mortgage calculator would have told you $545. The real number is $410 higher every month, 75% more than the payment most buyers budget for.
Compare Edgefield County with anywhere in America · full county breakdown
Small-place caveat: the Census publishes these figures for Johnston from a five-year rolling sample, and with about 2,518 residents that sample is small. The median home value here carries a much wider margin of error than a big-city figure does, so treat it as indicative rather than exact. The Edgefield County figures are drawn from a far larger sample if you want a steadier number.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Johnston against Edgefield County and South Carolina
| Measure | Johnston | Edgefield County |
|---|---|---|
| Median home value | $100,400 | $194,300 |
| Median property tax | $540 | $877 |
| Effective tax rate | 0.538% | 0.451% |
| Median gross rent | $803 | $854 |
| Population | 2,518 | 26,508 |
The weather behind that power bill
Johnston sits in Edgefield County, which averages a high of 94.1°F in its hottest month and a low of 35.3°F in its coldest, with 44.09" of precipitation a year and 31% of it in a single three-month stretch. That climate drives 2,361 cooling and 2,181 heating degree days, which is what sets the $165 electricity line above.
See the full climate breakdown for Edgefield County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Edgefield County
Full Edgefield County cost breakdown · Every county in South Carolina
Talk to someone who works this market
These are Johnston 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 Johnston every week. Free, no obligation, and we never sell your details to a list.
I'm looking to buy in Johnston I already own here and may sell
Common questions
How much does it cost to own a home in Johnston?
A $100,000 home in Johnston, South Carolina costs approximately $955 per month with 20% down at 7.24%. That is $545 principal and interest, $45 property tax, $48 homeowners insurance, $233 utilities and $83 set aside for maintenance.
What is the property tax rate in Johnston?
Johnston has an effective property tax rate of 0.538%, based on a median home value of $100,400 and median real estate taxes of $540. That is higher than the Edgefield County average of 0.451%.
What is the average home price in Johnston?
The median owner-occupied home value in Johnston, South Carolina is $100,400, against $194,300 across Edgefield County.
Is it cheaper to rent or buy in Johnston?
Median gross rent in Johnston is $803 a month, against $955 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 Johnston?
Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Johnston, South Carolina at today's rate takes a household income of roughly $41,000 a year. That covers the full $955 monthly cost, not just the mortgage payment.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Johnston, 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.