US ZIP Code
51545

Little Sioux, IA

Harrison County  ·  Iowa

● Active
👥 258 Population ↓ 14% since 2019
💰 $67,083 Median HH Income
▼ 12% below avg ↑ 83% since 2019
🎂 58.9 Median Age ↑ 31% since 2019
🏠 $81,300 Median Home Value
▼ 71% below avg ↑ 53% since 2019
🎓 16.9% College Grads
▼ 56% below avg
📊 6.1% Unemployment
▲ 24% above avg ↓ 66% since 2019
ZIP Code Details
ZIP Code51545
CityLittle Sioux
StateIowa (IA)
CountyHarrison County
Area Code712
Elevation1,034 ft
Latitude41.850978
Longitude-96.014628
TimezoneChicago (DST)
FIPS19085
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 50.0% (129) Female 50.0% (129) ♀

Race & Ethnicity

White: 96.5%Hispanic: 1.9%Other: 1.2%Race
White96.5%
Hispanic1.9%
Other1.2%

Age Breakdown

Under 5
4%
5–17
13%
18–24
7%
25–44
13%
45–64
31%
65+
21%

Key Indicators

Median Age58.9 yrs ↑ 31% since 2019
Avg Household Size2.17
Below Poverty16.7% ▲ 67% above avg
College Grads16.9% ▼ 56% below avg
Unemployment6.1% ▲ 24% above avg
No HS Diploma3 (1.6%)
HS Graduate91 (49.7%)
Some College26 (14.2%)
Associates32 (17.5%)
Bachelors16 (8.7%)
Graduate Degree15 (8.2%)

Education

No HS: 1.6%HS Grad: 49.7%Some College: 14.2%Associates: 17.5%Bachelors: 8.7%Graduate: 8.2%Edu
No HS1.6%
HS Grad49.7%
Some College14.2%
Associates17.5%
Bachelors8.7%
Graduate8.2%
Housing & Income

Housing Tenure

Owner: 84.9%Renter: 15.1%Tenure
Owner84.9%
Renter15.1%

Home Value Distribution

Under $50k
42%
$50k–100k
13%
$100k–150k
18%
$150k–200k
22%
$300k–500k
6%

Financials

Median HH Income$67,083 ▼ 12% below avg ↑ 83% since 2019
Median Home Value$81,300 ▼ 71% below avg ↑ 53% since 2019
Home/Income Ratio1.2x (nat avg ~3.5x)
Median Rent$450/mo ↓ 27% since 2019
Total Units149
Vacant Units30
Avg HH Size2.17

Income Distribution

Under $25k
34%
$25k–50k
5%
$50k–75k
13%
$75k–100k
34%
$100k–150k
11%
Over $200k
4%
Employment & Commute

How People Get to Work

Drove Alone
72%
Walked
2%
Work From Home
26%

Commute Time

Under 15 min
11%
15–30 min
46%
30–45 min
7%
Over 45 min
35%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
7%
1960s–1970s
12%
1980s–1990s
4%
2000+
74%

Summary

Total Units149
Vacant30
Owner Occupied84.9%
Renter Occupied15.1%
Avg HH Size2.17
Frequently Asked Questions
ZIP code 51545 is in Little Sioux, IA, in Harrison County.
ZIP code 51545 is located in Iowa (IA).
ZIP code 51545 is in Harrison County, IA.
ZIP 51545 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 51545 is 258 people (ACS 2023).
The median household income in ZIP code 51545 is $67,083 (ACS 2023).
The median home value in ZIP 51545 is $81,300 (ACS 2023).
About ZIP Code 51545

ZIP code 51545 is located in Little Sioux, Iowa, within Harrison County. With a population of 258, this is a sparsely populated ZIP code with an older community — the median age is 58.9 years. Economically, 51545 is a solidly middle-class ZIP code: the median household income of $67,083 is near the national average.

Real estate in ZIP code 51545 represents one of the more affordable housing markets in the country. The median home value of $81,300 is well below the national average. Renters can expect to pay around $450 per month in median rent. Homeownership is strong here — 84.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 53% since 2019.

The population of 51545 is primarily White (96.51%). Residents are less-educated — 16.9% hold a bachelor's degree or higher, which is well below the national average. Poverty affects some residents at 16.7%. Household income has grown by 83% since 2019.

The unemployment rate in 51545 stands at 6.1%, which is above the national average. About 24% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 66%.

Overall, ZIP code 51545 in Little Sioux, IA is characterized as solidly middle-class, less-educated, an older community, and predominantly owner-occupied. With 258 residents, a median household income of $67,083, and a median home value of $81,300, it offers a clear picture of life in this part of Iowa.