Total monthly cost of ownership
Cost to Own a Home in Rapid City, South Dakota
A $270,000 home here costs
$2,201per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,388. The real number is $813 higher every month — 59% 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.
Rapid City against Pennington County and South Dakota
| Measure | Rapid City | Pennington County |
|---|---|---|
| Median home value | $270,000 | $270,400 |
| Median property tax | $3,058 | $3,049 |
| Effective tax rate | 1.133% | 1.128% |
| Median gross rent | $1,053 | $1,066 |
| Population | 76,836 | 112,081 |
The weather behind that power bill
Rapid City sits in Pennington County, which averages a high of 86.4°F in its hottest month and a low of 12.7°F in its coldest, with 17.44" of precipitation a year and 49% of it in a single three-month stretch. That climate drives 607 cooling and 7,252 heating degree days, which is what sets the $141 electricity line above.
See the full climate breakdown for Pennington County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Pennington County
Full Pennington County cost breakdown · Every county in South Dakota
Common questions
How much does it cost to own a home in Rapid City?
A $270,000 home in Rapid City, South Dakota costs approximately $2,201 per month with 20% down at 6.66%. That is $1,388 principal and interest, $255 property tax, $124 homeowners insurance, $209 utilities and $225 set aside for maintenance.
What is the property tax rate in Rapid City?
Rapid City has an effective property tax rate of 1.133%, based on a median home value of $270,000 and median real estate taxes of $3,058. That is in line with the Pennington County average of 1.128%.
What is the average home price in Rapid City?
The median owner-occupied home value in Rapid City, South Dakota is $270,000, against $270,400 across Pennington County.
Is it cheaper to rent or buy in Rapid City?
Median gross rent in Rapid City is $1,053 a month, against $2,201 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 Rapid City — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for South Dakota.
- 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.