Grand Detour, IL ZIP Codes
One ZIP code serves Grand Detour, Illinois: 61021. Together they are home to 22,308 residents in 8,838 households. That is more than the 297 people counted inside Grand Detour Census-designated place, because these ZIP codes reach past its boundary.
Grand Detour Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 297 |
| Households | 148 |
| Median household income | $76,406 |
| Median home value | $191,700 |
| Median age | 51.6 |
| Median rent | not published |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 22,308 |
| Households (sum of ZIP codes) | 8,838 |
| Median household income, range across ZIP codes | $69,127 (61021) to $69,127 (61021) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $69,127 |
| Homeowners | 72.8% |
| Households with kids under 18 | 26.8% |
| Moved in the past year | 10.6% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Every ZIP code in Grand Detour
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 61021 | Dixon | 22,308 | 8,838 | $69,127 | $148,500 | 72.8% | 26.8% | 10.6% | — | — | 1% of its land |
A ZIP code is listed for Grand Detour when at least 10% of its land lies inside the Grand Detour Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Grand Detour. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Grand Detour.
Counties
- Lee County — 18 ZIP codes
Nearby cities sharing these ZIP codes
- Dixon — 1 ZIP code
Price a mailing to Grand Detour ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Grand Detour, IL?
- 61021. A ZIP code is listed for Grand Detour when at least 10% of its land lies inside the Grand Detour Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Grand Detour.
- What is the population of Grand Detour, IL?
- The Census Bureau counts 297 residents inside Grand Detour Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Grand Detour hold 22,308 residents in all.
- What is the median household income in Grand Detour, IL?
- $76,406 inside Grand Detour Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $69,127 to $69,127.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.