Total monthly cost of ownership
Cost to Own a Home in Irmo, South Carolina
A $193,000 home here costs
$1,560per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $992. The real number is $567 higher every month — 57% 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.
Irmo against Richland County and South Carolina
| Measure | Irmo | Richland County |
|---|---|---|
| Median home value | $193,100 | $224,200 |
| Median property tax | $1,203 | $1,569 |
| Effective tax rate | 0.623% | 0.700% |
| Median gross rent | $1,412 | $1,185 |
| Population | 11,799 | 418,725 |
Irmo extends across 2 counties. Figures here use Richland County, where most of its housing sits.
The weather behind that power bill
Irmo sits in Richland County, which averages a high of 93.2°F in its hottest month and a low of 37.0°F in its coldest, with 43.68" of precipitation a year and 33% of it in a single three-month stretch. That climate drives 2,418 cooling and 2,210 heating degree days, which is what sets the $145 electricity line above.
See the full climate breakdown for Richland County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Richland County
Full Richland County cost breakdown · Every county in South Carolina
Common questions
How much does it cost to own a home in Irmo?
A $193,000 home in Irmo, South Carolina costs approximately $1,560 per month with 20% down at 6.66%. That is $992 principal and interest, $100 property tax, $93 homeowners insurance, $213 utilities and $161 set aside for maintenance.
What is the property tax rate in Irmo?
Irmo has an effective property tax rate of 0.623%, based on a median home value of $193,100 and median real estate taxes of $1,203. That is lower than the Richland County average of 0.700%.
What is the average home price in Irmo?
The median owner-occupied home value in Irmo, South Carolina is $193,100, against $224,200 across Richland County.
Is it cheaper to rent or buy in Irmo?
Median gross rent in Irmo is $1,412 a month, against $1,560 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 Irmo — 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.