51433 ZIP Code, Auburn, IA
51433 is a ZIP code in Auburn, Iowa — mostly in Sac County (58% of its land), with smaller parts in Calhoun County. It covers 57 square miles of land. The closest ZIP codes are 51449, 51450 and 51436. 567 people live here in 227 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (49% own). Median household income is $68,125, close to the Iowa median of $75,059.
Quick facts
- Mailing city: Auburn, IA
- County: Sac County
- Land area: 57 sq mi
- Population: 567
- Median household income: $68,125
Key figures
| Measure | Value |
|---|---|
| Residents | 567 |
| Households | 227 |
| Median household income | $68,125 |
| Income per person | $32,473 |
| Median age | 38.2 |
| Homeowners | 48.5% |
| Median home value | $153,200 |
| Median rent | $774 |
| Bachelor's degree or higher | 11.8% |
| Average commute (minutes) | 35.3 |
| Households with kids under 18 | 36.6% |
| Moved in the past year | 4.4% |
| Below the poverty line | 20.8% |
| Broadband internet | 85.5% |
| Speak a non-English language at home | 0.7% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.9% |
| $10–15K | 4.0% |
| $15–25K | 7.5% |
| $25–35K | 1.3% |
| $35–50K | 14.1% |
| $50–75K | 23.3% |
| $75–100K | 25.1% |
| $100–150K | 15.0% |
| $150–200K | 7.0% |
| $200K+ | 1.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.1% |
| 10–19 | 14.7% |
| 20–24 | 3.7% |
| 25–34 | 17.3% |
| 35–44 | 23.1% |
| 45–54 | 5.8% |
| 55–64 | 9.9% |
| 65–74 | 10.6% |
| 75+ | 4.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 27.3% |
| Owned outright | 18.0% |
| Rented | 47.8% |
| Vacant | 6.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 95.5% |
| Townhome | 0.0% |
| 2–4 units | 1.6% |
| 5–19 units | 2.9% |
| 20+ units | 0.0% |
| Mobile / other | 0.0% |
Businesses in 51433
14 business establishments with 63 employees (ZIP Codes Business Patterns 2023).
- Wholesale Trade: 3
- Transportation and Warehousing: 3
EDDM carrier routes
See every USPS carrier route in 51433 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 51449 — Lake City city, IA (7.2 mi)
- 51450 — Lake View city, IA (8.2 mi)
- 51436 — Breda city, IA (8.5 mi)
- 50561 — Lytton city, IA (10.5 mi)
- 51451 — Lanesboro city, IA (10.8 mi)
- 51452 — Lidderdale city, IA (11 mi)
- 51466 — Wall Lake city, IA (11.5 mi)
- 50583 — Sac City city, IA (12.8 mi)
Areas that include 51433
- Auburn, IA ZIP codes — 1 ZIP code
- Yetter, IA ZIP codes — 1 ZIP code
- Calhoun County ZIP codes — 12 ZIP codes
- Sac County ZIP codes — 14 ZIP codes
- Iowa ZIP code data
Mail every home in 51433
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) 51433, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 51433 in?
- 51433 is a Auburn, IA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 51433 in?
- 51433 is mostly in Sac County (58% of its land), with smaller parts in Calhoun County.
- What is the population of 51433?
- About 567 people (±181), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 643.
- What is the median household income in 51433?
- $68,125 (±$30,871), 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 51433?
- EDDM2GO's stored route library does not include 51433 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 51433?
- The closest, measured center to center: 51449 (7.2 mi, Lake City), 51450 (8.2 mi, Lake View), 51436 (8.5 mi, Breda), 50561 (10.5 mi, Lytton), 51451 (10.8 mi, Lanesboro) and 51452 (11 mi, Lidderdale).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.