US ZIP Code
51566

Red Oak, IA

Montgomery County  ·  Iowa

● Active
👥 7,004 Population ↑ 10% since 2019
💰 $58,264 Median HH Income
▼ 24% below avg ↑ 22% since 2019
🎂 42.6 Median Age ↓ 6% since 2019
🏠 $116,200 Median Home Value
▼ 58% below avg ↑ 33% since 2019
🎓 32.9% College Grads
▼ 15% below avg
📊 3.4% Unemployment
▼ 31% below avg ↓ 25% since 2019
ZIP Code Details
ZIP Code51566
CityRed Oak
StateIowa (IA)
CountyMontgomery County
Area Code712
Elevation1,162 ft
Latitude41.015123
Longitude-95.229709
TimezoneChicago (DST)
FIPS19137
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 48.9% (3,427) Female 51.1% (3,577) ♀

Race & Ethnicity

White: 91.3%Hispanic: 1.4%Black: 0.8%Asian: 1%Other: 3.9%Race
White91.3%
Hispanic1.4%
Black0.8%
Asian1.0%
Other3.9%

Age Breakdown

Under 5
5%
5–17
18%
18–24
8%
25–44
22%
45–64
26%
65+
9%

Key Indicators

Median Age42.6 yrs ↓ 6% since 2019
Avg Household Size2.17
Below Poverty13.4% ▲ 34% above avg
College Grads32.9% ▼ 15% below avg
Unemployment3.4% ▼ 31% below avg
No HS Diploma96 (2.1%)
HS Graduate1,626 (35.6%)
Some College686 (15%)
Associates653 (14.3%)
Bachelors607 (13.3%)
Graduate Degree895 (19.6%)

Education

No HS: 2.1%HS Grad: 35.6%Some College: 15%Associates: 14.3%Bachelors: 13.3%Graduate: 19.6%Edu
No HS2.1%
HS Grad35.6%
Some College15.0%
Associates14.3%
Bachelors13.3%
Graduate19.6%
Housing & Income

Housing Tenure

Owner: 68.3%Renter: 31.7%Tenure
Owner68.3%
Renter31.7%

Home Value Distribution

Under $50k
11%
$50k–100k
33%
$100k–150k
16%
$150k–200k
16%
$200k–300k
13%
$300k–500k
9%
Over $500k
3%

Financials

Median HH Income$58,264 ▼ 24% below avg ↑ 22% since 2019
Median Home Value$116,200 ▼ 58% below avg ↑ 33% since 2019
Home/Income Ratio2.0x (nat avg ~3.5x)
Median Rent$783/mo ↑ 22% since 2019
Total Units3,435
Vacant Units276
Avg HH Size2.17

Income Distribution

Under $25k
22%
$25k–50k
19%
$50k–75k
18%
$75k–100k
13%
$100k–150k
15%
$150k–200k
10%
Over $200k
3%
Employment & Commute

How People Get to Work

Drove Alone
88%
Public Transit
0%
Walked
2%
Work From Home
10%

Commute Time

Under 15 min
62%
15–30 min
12%
30–45 min
9%
Over 45 min
18%
Housing Stock

Year Built

Before 1940
4%
1940s–1950s
16%
1960s–1970s
11%
1980s–1990s
6%
2000+
63%

Summary

Total Units3,435
Vacant276
Owner Occupied68.3%
Renter Occupied31.7%
Avg HH Size2.17
Frequently Asked Questions
ZIP code 51566 is in Red Oak, IA, in Montgomery County.
ZIP code 51566 is located in Iowa (IA).
ZIP code 51566 is in Montgomery County, IA.
ZIP 51566 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 51566 is 7,004 people (ACS 2023).
The median household income in ZIP code 51566 is $58,264 (ACS 2023).
The median home value in ZIP 51566 is $116,200 (ACS 2023).
About ZIP Code 51566

ZIP code 51566 is located in Red Oak, Iowa, within Montgomery County. With a population of 7,004, this is a lightly populated ZIP code with a middle-aged community — the median age is 42.6 years. Economically, 51566 is a solidly middle-class ZIP code: the median household income of $58,264 is below the national average.

Real estate in ZIP code 51566 represents one of the more affordable housing markets in the country. The median home value of $116,200 is well below the national average. Renters can expect to pay around $783 per month in median rent. Homeownership is strong here — 68.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 33% since 2019.

The population of 51566 is primarily White (91.30%). Residents are moderately educated — 32.9% hold a bachelor's degree or higher, which is below the national average. Poverty affects some residents at 13.4%. Household income has grown by 22% since 2019.

The unemployment rate in 51566 stands at 3.4%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 80%.

Overall, ZIP code 51566 in Red Oak, IA is characterized as solidly middle-class, moderately educated, a middle-aged community, and predominantly owner-occupied. With 7,004 residents, a median household income of $58,264, and a median home value of $116,200, it offers a clear picture of life in this part of Iowa.