Flat Rock, IL ZIP Codes
One ZIP code serves Flat Rock, Illinois: 62427. Together they are home to 1,730 residents in 751 households. That is more than the 337 people counted inside Flat Rock village limits, because these ZIP codes reach past its boundary.
Flat Rock village limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 337 |
| Households | 146 |
| Median household income | $51,667 |
| Median home value | $66,600 |
| Median age | 41.5 |
| Median rent | not published |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 1,730 |
| Households (sum of ZIP codes) | 751 |
| Median household income, range across ZIP codes | $81,250 (62427) to $81,250 (62427) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $81,250 |
| Homeowners | 94.3% |
| Households with kids under 18 | 29.0% |
| Moved in the past year | 2.3% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Every ZIP code in Flat Rock
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 62427 | Flat Rock | 1,730 | 751 | $81,250 | $160,700 | 94.3% | 29.0% | 2.3% | — | — | 1% of its land; mailing city |
A ZIP code is listed for Flat Rock when at least 10% of its land lies inside Flat Rock village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Flat Rock. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Flat Rock.
Counties
- Crawford County — 8 ZIP codes
Price a mailing to Flat Rock ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Flat Rock, IL?
- 62427. A ZIP code is listed for Flat Rock when at least 10% of its land lies inside Flat Rock village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Flat Rock.
- What is the population of Flat Rock, IL?
- The Census Bureau counts 337 residents inside Flat Rock village limits (ACS 2020–2024). The 1 ZIP code that serve Flat Rock hold 1,730 residents in all.
- What is the median household income in Flat Rock, IL?
- $51,667 inside Flat Rock village limits, per the Census Bureau. Across its ZIP codes the medians run from $81,250 to $81,250.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.