Zip lookup · SD

57445
Groton, South Dakota.

Groton, Brown County, SD · Aberdeen, SD metro · population 2,072

What it costs per month · 57445 $1,282/mo

to buy the typical home at today's mortgage rate — +$610 (+91%) since Jan 2020.

What the home itself did
1 year
Down $731 -0%
$245,008$244,278 since Sep 2025
5 years
Up $29,082 +14%
$215,196$244,278 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 57445 $1,282 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • 57445$1,282
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 27 years.

Typical home values in zip 57445 fell 0.3% over the past year — slower than the nation's +1.2%.

Zillow also publishes an index for the city itself: Groton, SD — measured over the city limits, which is a different area from this zip.

Typical home value $244,278 as of Sep 2026
-0.3%year on year

Typical home value — 57445

Mid-tier homes, smoothed and seasonally adjusted.

$150,000 $200,000 $250,000 $300,000 $350,000 2018 2020 2022 2024 2026 57445 $244,278 Aberdeen $242,518 United States $366,157
$150,000 $200,000 $250,000 $300,000 $350,000 2018 2022 2026
  • 57445$244,278
  • Aberdeen$242,518
  • United States$366,157

Within 20 miles

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.