Monona County, IA ZIP Codes
14 ZIP codes cover all or part of Monona County, Iowa. The Census Bureau counts 8,557 residents in the county, with a median household income of $68,377 and a median home value of $142,900. Median household income ranges from $61,599 in 51529 to $80,750 in 51063. Its largest communities include Onawa, Mapleton, Whiting, Ute and Blencoe.
Monona County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 8,557 |
| Households | 3,878 |
| Median household income | $68,377 |
| Median home value | $142,900 |
| Median age | 43.7 |
| Median rent | $855 |
All 14 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 13,316 |
| Households (sum of ZIP codes) | 5,879 |
| Median household income, range across ZIP codes | $61,599 (51529) to $80,750 (51063) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $69,551 |
| Homeowners | 77.1% |
| Households with kids under 18 | 25.2% |
| Moved in the past year | 8.1% |
| Carrier routes in EDDM2GO's route library | 16 routes, 3,396 homes (8 of 14 ZIP codes) |
Top facts
- Highest median household income in Monona County: 51063 ($80,750)
- Most residents: 51040 (3,500 people)
- Highest homeownership: 51034 (77.6% own their home)
- Most households with kids: 51063 (33.4% of households)
- Most new movers: 51063 (9.9% moved in last year)
- Youngest median age: 51040 (37.6 years)
- Highest median home value: 51055 ($218,300)
Every ZIP code in Monona County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51040 | Onawa | 3,500 | 1,555 | $71,179 | $151,600 | 75.3% | 27.4% | 6.5% | 4 | 1,687 | 100% of its land |
| 51529 | Dunlap | 1,732 | 825 | $61,599 | $156,800 | 73.1% | 17.0% | 9.7% | — | — | 18% of its land |
| 51034 | Mapleton | 1,674 | 719 | $66,375 | $120,500 | 77.6% | 24.9% | 9.5% | 4 | 798 | 80% of its land |
| 51055 | Sloan | 1,346 | 548 | $72,143 | $218,300 | 69.9% | 30.7% | 7.2% | — | — | 49% of its land |
| 51063 | Whiting | 1,072 | 437 | $80,750 | $159,500 | 70.0% | 33.4% | 9.9% | — | — | 100% of its land |
| 51026 | Hornick | 910 | 354 | $80,500 | $211,400 | 93.5% | 29.9% | 14.9% | 1 | 220 | 35% of its land |
| 51060 | Ute | 706 | 330 | $52,500 | $99,400 | 65.2% | 25.5% | 14.8% | 1 | 209 | 77% of its land |
| 51558 | Moorhead | 549 | 217 | $77,417 | $100,000 | 90.3% | 24.9% | 2.7% | 2 | 230 | 91% of its land |
| 51010 | Castana | 425 | 208 | $89,063 | $114,800 | 87.5% | 21.2% | 0.0% | 2 | 145 | 100% of its land |
| 51523 | Blencoe | 379 | 169 | $82,625 | $136,800 | 79.3% | 25.4% | 8.3% | — | — | 92% of its land |
| 51572 | Soldier | 371 | 192 | $69,500 | $101,300 | 83.9% | 19.8% | 1.1% | 1 | 131 | 100% of its land |
| 51056 | Smithland | 346 | 173 | $103,313 | $157,400 | 92.5% | 17.3% | 5.1% | 1 | 182 | 15% of its land |
| 51545 | Little Sioux | 267 | 131 | $70,313 | $80,000 | 85.5% | 14.5% | 4.5% | — | — | 28% of its land |
| 51051 | Rodney | 39 | 21 | $51,563 | $170,800 | 85.7% | 28.6% | 0.0% | — | — | 100% of its land |
A ZIP code is listed for Monona 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
- Onawa — 2,839 residents · 1 ZIP code
- Mapleton — 989 residents · 1 ZIP code
- Whiting — 777 residents · 1 ZIP code
- Ute — 351 residents · 1 ZIP code
- Blencoe — 280 residents · 1 ZIP code
- Moorhead — 195 residents · 1 ZIP code
- Castana — 162 residents · 1 ZIP code
- Soldier — 133 residents · 1 ZIP code
- Turin — 131 residents · 1 ZIP code
- Rodney — 39 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Monona County — 5 ZIP codes ranked
- ZIP codes with the highest home values in Monona County — 5 ZIP codes ranked
- ZIP codes with the highest homeownership in Monona County — 5 ZIP codes ranked
- ZIP codes with the most families with kids in Monona County — 5 ZIP codes ranked
- ZIP codes with the most new movers in Monona County — 5 ZIP codes ranked
- Youngest ZIP codes in Monona County — 5 ZIP codes ranked
- Oldest ZIP codes in Monona County — 5 ZIP codes ranked
- Fastest-growing ZIP codes in Monona County — 5 ZIP codes ranked
Price a mailing to Monona County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Monona County, IA?
- 51040, 51529, 51034, 51055, 51063, 51026, 51060, 51558, 51010, 51523, 51572, 51056, 51545 and 51051. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Monona County?
- 8,557 residents in 3,878 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Monona County?
- $68,377 for the county as a whole. Its ZIP codes range from $61,599 (51529) to $80,750 (51063).
- Which Monona County ZIP code has the highest median household income?
- 51063, at $80,750, among ZIP codes with at least 1,000 residents. See the full ranking of Monona County ZIP codes by income.
- How many carrier routes and mailboxes are in Monona County?
- For the 8 of 14 ZIP codes in EDDM2GO's stored route library: 16 carrier routes reaching 3,396 residential and 206 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.