Zip lookup · IA

51247
Rock Valley, Iowa.

Rock Valley, Sioux County, IA · population 5,094

What it costs per month · 51247 $1,622/mo

to buy the typical home at today's mortgage rate — +$651 (+67%) since Feb 2022.

What the home itself did
1 year
Up $8,093 +3%
$300,984$309,077 since Sep 2025

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 51247 $1,622 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • 51247$1,622
  • United States$1,922

Typical home values in zip 51247 rose 2.7% over the past year — faster than the nation's +1.2%.

This zip spans 2 counties: Sioux County, IA 95% · Lyon County, IA 5%

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

Typical home value $309,077 as of Sep 2026
+2.7%year on year

Typical home value — 51247

Mid-tier homes, smoothed and seasonally adjusted.

$275,000 $300,000 $325,000 $350,000 2022 2023 2024 2025 2026 51247 $309,077 United States $366,157
$275,000 $300,000 $325,000 $350,000 2022 2024 2026
  • 51247$309,077
  • United States$366,157

Within 20 miles

Miles sorted ascending, activate to sort descending Zip activate to sort by Zip City activate to sort by City Population activate to sort by Population Rent activate to sort by Rent Home value activate to sort by Home value
9.4 51235 Doon 1,007 — $292,210
9.7 51239 Hull 2,876 — $317,862
9.8 51250 Sioux Center 9,970 — $349,642
10.1 51240 Inwood 1,914 — $302,331
11.3 51230 Alvord 478 — $263,749
14.3 51023 Hawarden 3,473 — $187,345
15.7 51027 Ireton 1,280 — $281,022
15.7 57013 Canton 4,504 — $297,954
16.0 51234 Boyden 1,172 — $290,585
16.6 51242 Lester 379 — $287,401
17.0 51036 Maurice 445 — $348,888
17.5 51041 Orange City 7,324 — $318,287
18.4 51246 Rock Rapids 4,041 — $254,926
18.8 51241 Larchwood 2,103 — $349,601
19.7 51237 George 1,605 — $200,132

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