51545 ZIP Code, Little Sioux, IA
51545 is a ZIP code in Little Sioux, Iowa — mostly in Harrison County (72% of its land), with smaller parts in Monona County. It covers 46 square miles of land. The closest ZIP codes are 51523, 51564 and 51557. 267 people live here in 131 households, fewer than in most Iowa ZIP codes. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (86%). Median household income is $70,313, close to the Iowa median of $75,059; the median age is 58.7, older than most ZIP codes.
Quick facts
- Mailing city: Little Sioux, IA
- County: Harrison County
- Land area: 46 sq mi
- Population: 267
- Median household income: $70,313
Key figures
| Measure | Value |
|---|---|
| Residents | 267 |
| Households | 131 |
| Median household income | $70,313 |
| Income per person | $32,551 |
| Median age | 58.7 |
| Homeowners | 85.5% |
| Median home value | $80,000 |
| Median rent | $508 |
| Bachelor's degree or higher | 5.8% |
| Average commute (minutes) | 41.1 |
| Households with kids under 18 | 14.5% |
| Moved in the past year | 4.5% |
| Below the poverty line | 16.1% |
| Broadband internet | 68.7% |
| Speak a non-English language at home | 2.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 9.2% |
| $10–15K | 3.1% |
| $15–25K | 17.6% |
| $25–35K | 5.3% |
| $35–50K | 5.3% |
| $50–75K | 12.2% |
| $75–100K | 32.1% |
| $100–150K | 9.9% |
| $150–200K | 0.0% |
| $200K+ | 5.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 4.8% |
| 10–19 | 15.3% |
| 20–24 | 2.2% |
| 25–34 | 3.4% |
| 35–44 | 8.2% |
| 45–54 | 10.9% |
| 55–64 | 25.4% |
| 65–74 | 22.8% |
| 75+ | 6.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 32.6% |
| Owned outright | 32.6% |
| Rented | 10.9% |
| Vacant | 24.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 87.9% |
| Townhome | 0.0% |
| 2–4 units | 3.5% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 8.7% |
Businesses in 51545
4 business establishments with 7 employees (ZIP Codes Business Patterns 2023).
EDDM carrier routes
See every USPS carrier route in 51545 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 51523 — Blencoe city, IA (5.2 mi)
- 51564 — Pisgah city, IA (5.5 mi)
- 51557 — Mondamin city, IA (8.1 mi)
- 51558 — Moorhead city, IA (8.2 mi)
- 68061 — Tekamah city, NE (11 mi)
- 51040 — Onawa city, IA (12.8 mi)
- 51550 — Magnolia city, IA (13.1 mi)
- 51572 — Soldier city, IA (14.1 mi)
Areas that include 51545
- Little Sioux, IA ZIP codes — 1 ZIP code
- River Sioux, IA ZIP codes — 1 ZIP code
- Harrison County ZIP codes — 13 ZIP codes
- Monona County ZIP codes — 14 ZIP codes
- Iowa ZIP code data
Mail every home in 51545
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 51545, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 51545 in?
- 51545 is a Little Sioux, IA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 51545 in?
- 51545 is mostly in Harrison County (72% of its land), with smaller parts in Monona County.
- What is the population of 51545?
- About 267 people (±78), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 345.
- What is the median household income in 51545?
- $70,313 (±$22,121), compared with $75,059 for Iowa as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 51545?
- EDDM2GO's stored route library does not include 51545 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 51545?
- The closest, measured center to center: 51523 (5.2 mi, Blencoe), 51564 (5.5 mi, Pisgah), 51557 (8.1 mi, Mondamin), 51558 (8.2 mi, Moorhead), 68061 (11 mi, Tekamah) and 51040 (12.8 mi, Onawa).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.