Cromwell, IA ZIP Codes
2 ZIP codes serve Cromwell, Iowa: 50801 and 50842. Together they are home to 9,133 residents in 4,011 households. That is more than the 103 people counted inside Cromwell city limits, because these ZIP codes reach past its boundary.
Cromwell city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 103 |
| Households | 49 |
| Median household income | $58,750 |
| Median home value | $101,600 |
| Median age | 56.5 |
| Median rent | not published |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 9,133 |
| Households (sum of ZIP codes) | 4,011 |
| Median household income, range across ZIP codes | $58,015 (50801) to $58,015 (50801) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $58,015 |
| Homeowners | 69.1% |
| Households with kids under 18 | 26.2% |
| Moved in the past year | 13.7% |
| Carrier routes in EDDM2GO's route library | 1 routes, 40 homes (1 of 2 ZIP codes) |
Every ZIP code in Cromwell
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50801 | Creston | 9,034 | 3,964 | $58,015 | $124,900 | 68.8% | 26.3% | 13.8% | — | — | 0% of its land |
| 50842 | Cromwell | 99 | 47 | $59,583 | $104,700 | 95.7% | 14.9% | 0.0% | 1 | 45 | 100% of its land; mailing city |
A ZIP code is listed for Cromwell when at least 10% of its land lies inside Cromwell city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cromwell. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Cromwell.
Counties
- Union County — 9 ZIP codes
Nearby cities sharing these ZIP codes
- Creston — 1 ZIP code
Price a mailing to Cromwell ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Cromwell, IA?
- 50801 and 50842. A ZIP code is listed for Cromwell when at least 10% of its land lies inside Cromwell city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Cromwell.
- What is the population of Cromwell, IA?
- The Census Bureau counts 103 residents inside Cromwell city limits (ACS 2020–2024). The 2 ZIP codes that serve Cromwell hold 9,133 residents in all.
- What is the median household income in Cromwell, IA?
- $58,750 inside Cromwell city limits, per the Census Bureau. Across its ZIP codes the medians run from $58,015 to $58,015.
- How many carrier routes and mailboxes are in Cromwell, IA?
- For the 1 of 2 ZIP codes in EDDM2GO's stored route library: 1 carrier routes reaching 40 residential and 5 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.