The typical owner-occupied home in Interior is worth about $137,500, 47% below the South Dakota median of $257,400 and 59% below the national median of $332,700. Owners pay a median $600 a year in property taxes, about 0.44% of their home's value, lower than the South Dakota rate of 1.06%. 81% of occupied homes here are lived in by their owners, and 9% of those owners still have a mortgage.
Interior at a glance
| Interior | South Dakota | U.S. | |
|---|---|---|---|
| Median home value | $137,500 | $257,400 | $332,700 |
| Median property tax paid per year | $600 | $2,724 | $3,119 |
| Property tax as a share of value | 0.44% | 1.06% | 0.94% |
| Median household income | – | $75,081 | $80,734 |
| Homes lived in by their owners | 81% | 69% | 65% |
| Owner homes with a mortgage | 9% | 54% | 61% |
| Median monthly costs, owners with a mortgage | – | $1,680 | $1,963 |
| Median rent | – | $946 | $1,413 |
| Median year homes were built | 1958 | 1980 | 1980 |
| Vacant homes | 18.2% | 10.5% | 10.1% |
| Population | 77 | 907,428 | 334,922,499 |
What a typical home costs per month in Interior
At this week's average 30-year rate of 7.11%, buying the median Interior home of $137,500 with 20% down costs about $848 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $1,077, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $36,330 for the 20%-down payment.
| Down payment | $27,500 |
|---|---|
| Loan amount | $110,000 |
| Principal and interest | $740 |
| Property taxes (0.44% a year) | $50 |
| Homeowners insurance (our estimate, 0.5% a year) | $57 |
| PMI | $0 |
| Total per month | $848 |
Change the numbers in the calculator
| Down payment | $4,812 |
|---|---|
| Loan amount | $135,010 |
| Principal and interest | $908 |
| Property taxes (0.44% a year) | $50 |
| Homeowners insurance (our estimate, 0.5% a year) | $57 |
| FHA mortgage insurance | $61 |
| Total per month | $1,077 |
Change the numbers in the calculator
Questions about home buying in Interior
What is the median home value in Interior?
About $137,500 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Interior?
Homeowners pay a median $600 a year, which is about 0.44% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in Interior?
For the median home with 20% down at 7.11%, the payment is about $848 a month. Keeping that under 28% of gross income takes about $36,330 a year.
More about Interior
- Mortgage Refinance in Interior
- Debt Relief in Interior
- Home Equity Loans in Interior
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data