Side-by-side comparison of home prices, mortgage payments, and housing costs between Rapid City and Sioux Falls, South Dakota. Using South Dakota's 1.22% property tax rate and $2,300/year insurance. Updated for 2026.
Sioux Falls edges out Rapid City in affordability, saving you roughly $142/month on total housing costs. Both cities are in South Dakota, so property tax rates and insurance costs are the same — the difference comes down to home prices and what you get for your money in each market.
Estimated PITI payments assuming 10% down, 6.5% rate, 30-year fixed mortgage with PMI. Uses South Dakota's 1.22% property tax rate.
Buying in Sioux Falls saves you approximately $142/month ($1,704/year) compared to Rapid City, based on median home prices with identical loan terms.
Sioux Falls is the better choice for first-time buyers, with a median price of $295K versus $315K in Rapid City. That's $20K less to save for a down payment. You'd need roughly $10K for an FHA 3.5% down payment in Sioux Falls, compared to $11K in Rapid City. South Dakota offers the SDHDA First-Time Homebuyer program (Fixed-rate FTB loans) which applies in both cities.
Sioux Falls has the better price-to-rent ratio at 21.4x versus 22.2x in Rapid City. A lower ratio generally signals better rental income relative to purchase price. Average rent in Sioux Falls is $1,150/month on a $295K median home, making it a stronger candidate for buy-and-rent investors.
Sioux Falls (pop. 192,517) offers more amenities, schools, and services typical of a larger city, while Rapid City (pop. 77,503) may offer a quieter, more community-oriented lifestyle. Sioux Falls offers both more options and lower housing costs, making it attractive for families who want urban amenities without a premium price.