Irwin, SC ZIP Codes
One ZIP code serves Irwin, South Carolina: 29720. Together they are home to 53,584 residents in 20,644 households. That is more than the 1,919 people counted inside Irwin Census-designated place, because these ZIP codes reach past its boundary.
Irwin Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 1,919 |
| Households | 653 |
| Median household income | $55,885 |
| Median home value | $176,900 |
| Median age | 32 |
| Median rent | $818 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 53,584 |
| Households (sum of ZIP codes) | 20,644 |
| Median household income, range across ZIP codes | $62,969 (29720) to $62,969 (29720) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $62,969 |
| Homeowners | 79.8% |
| Households with kids under 18 | 28.2% |
| Moved in the past year | 9.8% |
| Carrier routes in EDDM2GO's route library | 35 routes, 25,081 homes (1 of 1 ZIP codes) |
Every ZIP code in Irwin
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 29720 | Lancaster | 53,584 | 20,644 | $62,969 | $245,500 | 79.8% | 28.2% | 9.8% | 35 | 26,307 | 1% of its land |
A ZIP code is listed for Irwin when at least 10% of its land lies inside the Irwin Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Irwin. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Irwin.
Counties
- Lancaster County — 4 ZIP codes
Nearby cities sharing these ZIP codes
- Lancaster — 1 ZIP code
Price a mailing to Irwin ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Irwin, SC?
- 29720. A ZIP code is listed for Irwin when at least 10% of its land lies inside the Irwin Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Irwin.
- What is the population of Irwin, SC?
- The Census Bureau counts 1,919 residents inside Irwin Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Irwin hold 53,584 residents in all.
- What is the median household income in Irwin, SC?
- $55,885 inside Irwin Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $62,969 to $62,969.
- How many carrier routes and mailboxes are in Irwin, SC?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 35 carrier routes reaching 25,081 residential and 1,220 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.