St. Charles, IA ZIP Codes
One ZIP code serves St. Charles, Iowa: 50240. Together they are home to 2,393 residents in 861 households. That is more than the 914 people counted inside St. Charles city limits, because these ZIP codes reach past its boundary.
St. Charles city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 914 |
| Households | 348 |
| Median household income | $82,841 |
| Median home value | $221,300 |
| Median age | 36.2 |
| Median rent | $855 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 2,393 |
| Households (sum of ZIP codes) | 861 |
| Median household income, range across ZIP codes | $107,563 (50240) to $107,563 (50240) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $107,563 |
| Homeowners | 86.8% |
| Households with kids under 18 | 25.3% |
| Moved in the past year | 7.4% |
| Carrier routes in EDDM2GO's route library | 2 routes, 940 homes (1 of 1 ZIP codes) |
Every ZIP code in St. Charles
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50240 | Saint Charles | 2,393 | 861 | $107,563 | $305,800 | 86.8% | 25.3% | 7.4% | 2 | 951 | 1% of its land |
A ZIP code is listed for St. Charles when at least 10% of its land lies inside St. Charles city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is St. Charles. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside St. Charles.
Counties
- Madison County — 13 ZIP codes
Price a mailing to St. Charles ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. Charles, IA?
- 50240. A ZIP code is listed for St.
- What is the population of St. Charles, IA?
- The Census Bureau counts 914 residents inside St. Charles city limits (ACS 2020–2024). The 1 ZIP code that serve St. Charles hold 2,393 residents in all.
- What is the median household income in St. Charles, IA?
- $82,841 inside St. Charles city limits, per the Census Bureau. Across its ZIP codes the medians run from $107,563 to $107,563.
- How many carrier routes and mailboxes are in St. Charles, IA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 2 carrier routes reaching 940 residential and 11 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.