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County ZIP codes · Iowa · FIPS 19021

Buena Vista County, IA ZIP Codes

Buena Vista County, Iowa has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Buena Vista County and 6 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $63,802 in 50554 (Laurens) to $76,397 in 50510 (Albert City) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Buena Vista County?

50510 · Albert City: $76k50554 · Laurens: $64k50565 · Marathon: $52k50568 · Newell: $75k50576 · Rembrandt: $68k50585 · Sioux Rapids: $71k50588 · Storm Lake: $71k50592 · Truesdale: $100k51002 · Alta: $71k51005 · Aurelia: $76k51020 · Galva: $80k51033 · Linn Grove: $61k51047 · Peterson: $101k51366 · Webb: $88k5058851005510025055450510510475058550568510205103351366505655057650510 · Albert City: $76k50554 · Laurens: $64k50565 · Marathon: $52k50568 · Newell: $75k50576 · Rembrandt: $68k50585 · Sioux Rapids: $71k50588 · Storm Lake: $71k50592 · Truesdale: $100k51002 · Alta: $71k51005 · Aurelia: $76k51020 · Galva: $80k51033 · Linn Grove: $61k51047 · Peterson: $101k51366 · Webb: $88k5058851005510025055450510510475058550568510205103351366505655057650510 · Albert City: $76k50554 · Laurens: $64k50565 · Marathon: $52k50568 · Newell: $75k50576 · Rembrandt: $68k50585 · Sioux Rapids: $71k50588 · Storm Lake: $71k50592 · Truesdale: $100k51002 · Alta: $71k51005 · Aurelia: $76k51020 · Galva: $80k51033 · Linn Grove: $61k51047 · Peterson: $101k51366 · Webb: $88k505885100550554505105104750585505685102051033513665056550576
The residential ZIP codes of Buena Vista County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $70,625 and $75,250.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 14 residential ZIP codes in Buena Vista County

8 ZIP codes lie mainly in Buena Vista County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Buena Vista County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
50588 Storm Lake 13,431 97 $71k $185k 99%
51002 Alta 2,787 25 $71k $167k 99%
50568 Newell 1,384 17 $75k $138k 88%
50585 Sioux Rapids 1,080 16 $71k $121k 52%
50510 Albert City 1,042 12 $76k $111k 84%
50565 Marathon 380 9 $52k $60k 95%
50576 Rembrandt 277 8 $68k $116k 100%
50592 Truesdale 187 1,281 $100k $36k 100%

Partly in Buena Vista County

Residential ZIP codes mainly in another county that reach at least 1% into Buena Vista County, by their share here
In this county
51033 Linn Grove 421 7 $61k $182k 50%
51047 Peterson 693 9 $101k $130k 27%
51005 Aurelia 1,561 17 $76k $169k 14%
51020 Galva 632 11 $80k $93k 4%
50554 Laurens 1,653 18 $64k $83k 3%
51366 Webb 245 4 $88k $131k 3%

Download the 14 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

12 ZIP codes of Buena Vista County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Buena Vista County and in the neighboring counties
ZIPIn Buena VistaElsewhere
5058899%
5100299%Cherokee County 1%
505543%Pocahontas County 85%; Palo Alto County 12%
5100514%Cherokee County 86%
5056888%Sac County 12%
5058552%Clay County 48%
5051084%Pocahontas County 16%
5104727%Clay County 55%; Cherokee County 13%; O'Brien County 5%
510204%Ida County 71%; Sac County 13%; Cherokee County 12%
5103350%Clay County 50%
5056595%Clay County 5%
513663%Clay County 97%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Buena Vista County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Buena Vista County's ZIP codes use 3 prefixes: 505, 510 and 513.

Three-digit prefixes of Buena Vista County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Buena Vista County's
PrefixSectional centerHereAll codes
505 Des Moines, IA (SCF 500) 8 75
510 Sioux Falls, SD (SCF 570) 5 55
513 Sioux Falls, SD (SCF 570) 1 23

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.