Plainfield, IA ZIP Codes
One ZIP code serves Plainfield, Iowa: 50666. Together they are home to 753 residents in 321 households. That is more than the 314 people counted inside Plainfield city limits, because these ZIP codes reach past its boundary.
Plainfield city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 314 |
| Households | 132 |
| Median household income | $80,000 |
| Median home value | $128,100 |
| Median age | 43.7 |
| Median rent | $684 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 753 |
| Households (sum of ZIP codes) | 321 |
| Median household income, range across ZIP codes | $79,867 (50666) to $79,867 (50666) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $79,867 |
| Homeowners | 94.7% |
| Households with kids under 18 | 27.7% |
| Moved in the past year | 2.3% |
| Carrier routes in EDDM2GO's route library | 2 routes, 334 homes (1 of 1 ZIP codes) |
Every ZIP code in Plainfield
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50666 | Plainfield | 753 | 321 | $79,867 | $203,700 | 94.7% | 27.7% | 2.3% | 2 | 335 | 1% of its land; mailing city |
A ZIP code is listed for Plainfield when at least 10% of its land lies inside Plainfield city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Plainfield. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Plainfield.
Counties
- Bremer County — 10 ZIP codes
Price a mailing to Plainfield ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Plainfield, IA?
- 50666. A ZIP code is listed for Plainfield when at least 10% of its land lies inside Plainfield city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Plainfield.
- What is the population of Plainfield, IA?
- The Census Bureau counts 314 residents inside Plainfield city limits (ACS 2020–2024). The 1 ZIP code that serve Plainfield hold 753 residents in all.
- What is the median household income in Plainfield, IA?
- $80,000 inside Plainfield city limits, per the Census Bureau. Across its ZIP codes the medians run from $79,867 to $79,867.
- How many carrier routes and mailboxes are in Plainfield, IA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 2 carrier routes reaching 334 residential and 1 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.