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Buying a home in Watertown, South Dakota

The typical owner-occupied home in Watertown is worth about $229,400, 11% below the South Dakota median of $257,400 and 31% below the national median of $332,700. Owners pay a median $2,285 a year in property taxes, about 1.00% of their home's value, lower than the South Dakota rate of 1.06%. The median household earns $69,600 a year, so the median home costs 3.3 times the median income (3.4 times for South Dakota). 65% of occupied homes here are lived in by their owners, and 60% of those owners still have a mortgage.

Watertown at a glance

Watertown South Dakota U.S.
Median home value $229,400 $257,400 $332,700
Median property tax paid per year $2,285 $2,724 $3,119
Property tax as a share of value 1.00% 1.06% 0.94%
Median household income $69,600 $75,081 $80,734
Homes lived in by their owners 65% 69% 65%
Owner homes with a mortgage 60% 54% 61%
Median monthly costs, owners with a mortgage $1,463 $1,680 $1,963
Those costs as a share of the owners' income 19.8% 20.4% 21.0%
Median rent $942 $946 $1,413
Rent as a share of renters' income 23.9% 25.9% 30.6%
Median year homes were built 1979 1980 1980
Vacant homes 6.4% 10.5% 10.1%
Population 23,044 907,428 334,922,499

What a typical home costs per month in Watertown

At this week's average 30-year rate of 7.11%, buying the median Watertown home of $229,400 with 20% down costs about $1,521 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $1,903, 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 $65,199 for the 20%-down payment. That payment is 26% of the median Watertown household income of $69,600; at that income and 20% down, the 28% guideline points to a home of about $245,000.

The median rent here is $942 a month, so owning the median home costs about $579 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$45,880
Loan amount$183,520
Principal and interest$1,235
Property taxes (1.00% a year)$191
Homeowners insurance (our estimate, 0.5% a year)$96
PMI$0
Total per month$1,521

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3.5% down, 30-year FHA loan
Down payment$8,029
Loan amount$225,245
Principal and interest$1,515
Property taxes (1.00% a year)$191
Homeowners insurance (our estimate, 0.5% a year)$96
FHA mortgage insurance$101
Total per month$1,903

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Questions about home buying in Watertown

What is the median home value in Watertown?

About $229,400 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Watertown?

Homeowners pay a median $2,285 a year, which is about 1.00% 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 Watertown?

For the median home with 20% down at 7.11%, the payment is about $1,521 a month. Keeping that under 28% of gross income takes about $65,199 a year.

More about Watertown

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