Winnebago County, IA ZIP Codes
9 ZIP codes cover all or part of Winnebago County, Iowa. The Census Bureau counts 10,583 residents in the county, with a median household income of $67,642 and a median home value of $135,000. Median household income ranges from $59,091 in 50424 to $76,125 in 50450. Its largest communities include Forest City, Lake Mills, Buffalo Center, Thompson and Leland.
Winnebago County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 10,583 |
| Households | 4,641 |
| Median household income | $67,642 |
| Median home value | $135,000 |
| Median age | 42.7 |
| Median rent | $717 |
All 9 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 12,734 |
| Households (sum of ZIP codes) | 5,510 |
| Median household income, range across ZIP codes | $59,091 (50424) to $76,125 (50450) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $72,827 |
| Homeowners | 72.6% |
| Households with kids under 18 | 25.7% |
| Moved in the past year | 13.6% |
| Carrier routes in EDDM2GO's route library | 16 routes, 4,691 homes (6 of 9 ZIP codes) |
Top facts
- Highest median household income in Winnebago County: 50450 ($76,125)
- Most residents: 50436 (5,771 people)
- Highest homeownership: 50424 (70.8% own their home)
- Most households with kids: 50436 (30.3% of households)
- Most new movers: 50436 (16.6% moved in last year)
- Youngest median age: 50436 (36.9 years)
- Highest median home value: 50436 ($167,900)
Every ZIP code in Winnebago County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50436 | Forest City | 5,771 | 2,335 | $74,940 | $167,900 | 70.0% | 30.3% | 16.6% | 7 | 2,549 | 58% of its land |
| 50450 | Lake Mills | 2,952 | 1,369 | $76,125 | $158,000 | 69.8% | 22.3% | 10.9% | 4 | 1,383 | 68% of its land |
| 50424 | Buffalo Center | 1,441 | 688 | $59,091 | $114,500 | 70.8% | 17.4% | 13.2% | 2 | 503 | 62% of its land |
| 50478 | Thompson | 737 | 389 | $48,750 | $93,200 | 80.7% | 25.7% | 10.1% | 1 | 308 | 100% of its land |
| 50453 | Leland | 537 | 207 | $77,868 | $153,600 | 76.3% | 27.1% | 5.6% | — | — | 100% of its land |
| 50446 | Joice | 476 | 194 | $107,000 | $154,200 | 88.7% | 25.3% | 8.5% | 1 | 156 | 12% of its land |
| 50484 | Woden | 411 | 153 | $65,583 | $101,000 | 82.4% | 27.5% | 22.6% | 1 | 81 | 33% of its land |
| 50473 | Scarville | 219 | 94 | $50,227 | $140,500 | 83.0% | 22.3% | 5.5% | — | — | 100% of its land |
| 50465 | Rake | 190 | 81 | $42,386 | $49,000 | 93.8% | 18.5% | 7.0% | — | — | 100% of its land |
A ZIP code is listed for Winnebago County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Forest City — 4,290 residents · 1 ZIP code
- Lake Mills — 2,088 residents · 1 ZIP code
- Buffalo Center — 911 residents · 1 ZIP code
- Thompson — 459 residents · 1 ZIP code
- Leland — 306 residents · 2 ZIP codes
- Rake — 190 residents · 2 ZIP codes
- Scarville — 66 residents · 1 ZIP code
Price a mailing to Winnebago County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Winnebago County, IA?
- 50436, 50450, 50424, 50478, 50453, 50446, 50484, 50473 and 50465. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Winnebago County?
- 10,583 residents in 4,641 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Winnebago County?
- $67,642 for the county as a whole. Its ZIP codes range from $59,091 (50424) to $76,125 (50450).
- Which Winnebago County ZIP code has the highest median household income?
- 50450, at $76,125, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Winnebago County?
- For the 6 of 9 ZIP codes in EDDM2GO's stored route library: 16 carrier routes reaching 4,691 residential and 293 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.