ZIP codes starting with 505
- ZIP codes
- 75
- States
- IA
- Largest city
- Fort Dodge, IA
- Population
- 120,842
The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.
Every ZIP code in 505xx
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50501 | Fort Dodge , IA | Standard | 28,823 | $66,888 | $153,500 |
50510 | Albert City , IA | Standard | 1,042 | $76,397 | $110,700 |
50511 | Algona , IA | Standard | 7,240 | $66,642 | $180,800 |
50514 | Armstrong , IA | Standard | 1,117 | $73,000 | $137,100 |
50515 | Ayrshire , IA | Standard | 251 | $63,333 | $29,300 |
50516 | Badger , IA | Standard | 586 | $69,500 | $126,900 |
50517 | Bancroft , IA | Standard | 833 | $61,875 | $124,700 |
50518 | Barnum , IA | Standard | 365 | $97,857 | $158,300 |
50519 | Bode , IA | Standard | 765 | $72,083 | $123,600 |
50520 | Bradgate , IA | Standard | 114 | $73,750 | $44,300 |
50521 | Burnside , IA | Standard | 45 | — | — |
50522 | Burt , IA | Standard | 705 | $67,813 | $82,600 |
50523 | Callender , IA | Standard | 682 | $85,781 | $152,600 |
50524 | Clare , IA | Standard | 439 | $104,375 | $245,300 |
50525 | Clarion , IA | Standard | 3,179 | $67,250 | $128,800 |
50526 | Clarion , IA | No street area | — | — | — |
50527 | Curlew , IA | Standard | 106 | — | — |
50528 | Cylinder , IA | Standard | 366 | $116,429 | $187,500 |
50529 | Dakota City , IA | Standard | 752 | $60,417 | $119,800 |
50530 | Dayton , IA | Standard | 1,090 | $73,250 | $167,900 |
50531 | Dolliver , IA | Standard | 325 | $93,036 | $152,000 |
50532 | Duncombe , IA | Standard | 804 | $65,000 | $151,000 |
50533 | Eagle Grove , IA | Standard | 3,977 | $65,595 | $110,200 |
50535 | Early , IA | Standard | 1,198 | $91,995 | $94,800 |
50536 | Emmetsburg , IA | Standard | 4,207 | $59,261 | $122,000 |
50538 | Farnhamville , IA | Standard | 661 | $62,344 | $94,000 |
50539 | Fenton , IA | Standard | 444 | $65,417 | $70,800 |
50540 | Fonda , IA | Standard | 998 | $73,438 | $109,800 |
50541 | Gilmore City , IA | Standard | 1,067 | $56,364 | $95,500 |
50542 | Goldfield , IA | Standard | 859 | $55,000 | $138,400 |
50543 | Gowrie , IA | Standard | 1,420 | $91,563 | $155,100 |
50544 | Harcourt , IA | Standard | 565 | $59,620 | $152,700 |
50545 | Hardy , IA | Standard | 139 | $31,429 | — |
50546 | Havelock , IA | Standard | 356 | $64,583 | — |
50548 | Humboldt , IA | Standard | 5,722 | $76,214 | $188,200 |
50551 | Jolley , IA | Standard | 96 | — | $51,100 |
50552 | Knierim , IA | Standard | 76 | $89,000 | $112,500 |
50554 | Laurens , IA | Standard | 1,653 | $63,802 | $82,800 |
50556 | Ledyard , IA | Standard | 159 | $36,607 | — |
50557 | Lehigh , IA | Standard | 804 | $62,750 | $160,200 |
50558 | Livermore , IA | Standard | 653 | $68,750 | $123,600 |
50559 | Lone Rock , IA | Standard | 289 | $50,000 | $128,800 |
50560 | Lu Verne , IA | Standard | 732 | $66,042 | $83,900 |
50561 | Lytton , IA | Standard | 585 | $67,446 | $77,800 |
50562 | Mallard , IA | Standard | 377 | $72,500 | $100,000 |
50563 | Manson , IA | Standard | 2,505 | $71,094 | $161,100 |
50565 | Marathon , IA | Standard | 380 | $51,875 | $59,700 |
50566 | Moorland , IA | Standard | 325 | $78,750 | $166,100 |
50567 | Nemaha , IA | Standard | 280 | $78,125 | $170,000 |
50568 | Newell , IA | Standard | 1,384 | $75,250 | $137,700 |
50569 | Otho , IA | Standard | 551 | $44,375 | $96,900 |
50570 | Ottosen , IA | Standard | 203 | $67,813 | $202,000 |
50571 | Palmer , IA | Standard | 273 | $59,583 | $58,900 |
50573 | Plover , IA | Standard | 31 | $48,542 | — |
50574 | Pocahontas , IA | Standard | 2,132 | $60,469 | $110,300 |
50575 | Pomeroy , IA | Standard | 696 | $52,717 | $88,900 |
50576 | Rembrandt , IA | Standard | 277 | $67,500 | $116,300 |
50577 | Renwick , IA | Standard | 341 | $57,500 | $107,400 |
50578 | Ringsted , IA | Standard | 633 | $71,645 | $106,500 |
50579 | Rockwell City , IA | Standard | 3,034 | $61,108 | $126,000 |
50581 | Rolfe , IA | Standard | 809 | $57,500 | $93,000 |
50582 | Rutland , IA | Standard | 170 | $87,125 | — |
50583 | Sac City , IA | Standard | 2,288 | $62,981 | $144,700 |
50585 | Sioux Rapids , IA | Standard | 1,080 | $71,346 | $120,600 |
50586 | Somers , IA | Standard | 272 | $55,375 | $89,100 |
50588 | Storm Lake , IA | Standard | 13,431 | $70,906 | $184,900 |
50590 | Swea City , IA | Standard | 718 | $57,639 | $64,000 |
50591 | Thor , IA | Standard | 405 | $75,000 | $162,500 |
50592 | Truesdale , IA | Standard | 187 | $100,076 | $35,800 |
50593 | Varina , IA | Standard | 29 | $50,625 | $55,000 |
50594 | Vincent , IA | Standard | 288 | $67,000 | — |
50595 | Webster City , IA | Standard | 8,885 | $69,167 | $153,800 |
50597 | West Bend , IA | Standard | 1,341 | $92,000 | $179,700 |
50598 | Whittemore , IA | Standard | 818 | $78,558 | $110,900 |
50599 | Woolstock , IA | Standard | 410 | $102,679 | $187,500 |
Cite this page
zipcodes.pro. “ZIP codes starting with 505.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/505
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