Buena Vista County, IA ZIP codes
There are 8 ZIP codes in Buena Vista County, IA, in 8 towns, from 50510 to 51002. The largest are 50588 (Storm Lake), 51002 (Alta) and 50568 (Newell). 1 more crosses into it from a neighbouring county: 51033.
The county seat is Storm Lake.
- ZIP codes
- 8
- Partly in it
- 1 more
- Towns
- 8
- County seat
- Storm Lake
- County FIPS
19021- State
- Iowa
- Population
- 20,753
- Median household income
- $71,719
- Land area
- 575 sq mi
- Area code
- 712
- Metro area
- Storm Lake
Buena Vista County ZIP codes by town
- Storm Lake (county seat)
- 50588
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Buena Vista County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Buena Vista County.
- 51033 Linn Grove · mostly in Clay County
Map of Buena Vista County ZIP codes
The ZIP codes of Buena Vista County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Buena Vista County in numbers
About 20,753 people live in Buena Vista County, in 7,546 households, the 30th most populous of Iowa's 99 counties. The median household income is $71,719 a year, 4% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $159,500 (23% below the Iowa median), and median gross rent is $894 a month. The median age is 35.6; 22.2% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 14 minutes.
| Population | 20,753 |
|---|---|
| Households | 7,546 |
| Median age | 35.6 |
| Median household income | $71,719 |
| Median home value | $159,500 |
| Median gross rent | $894 |
| Bachelor's degree or higher | 22.2% |
| Mean commute | 14.0 min |
| Population density | 36 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Buena Vista County
| Town | ZIP codes | Population |
|---|---|---|
| Storm Lake | 1 | 11,428 |
| Alta | 1 | 2,250 |
| Newell | 1 | 944 |
| Albert City | 1 | 722 |
| Sioux Rapids | 1 | 722 |
| Marathon | 1 | 234 |
| Truesdale | 1 | 187 |
| Rembrandt | 1 | 157 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Buena Vista County.
- Clay County (10)
- O'Brien County (8)
- Cherokee County (8)
- Sac County (8)
- Palo Alto County (8)
- Pocahontas County (9)
- Ida County (6)
Not sure you are in Buena Vista County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Buena Vista County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50510 | Albert City , IA | Standard | 1,042 | $76,397 | $110,700 |
50565 | Marathon , IA | Standard | 380 | $51,875 | $59,700 |
50568 | Newell , IA | Standard | 1,384 | $75,250 | $137,700 |
50576 | Rembrandt , IA | Standard | 277 | $67,500 | $116,300 |
50585 | Sioux Rapids , IA | Standard | 1,080 | $71,346 | $120,600 |
50588 | Storm Lake , IA | Standard | 13,431 | $70,906 | $184,900 |
50592 | Truesdale , IA | Standard | 187 | $100,076 | $35,800 |
51002 | Alta , IA | Standard | 2,787 | $70,625 | $167,100 |
Cite this page
zipcodes.pro. “Buena Vista County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ia/county/buena-vista
Underlying data is public domain or openly licensed — sources, vintages and licences.