Alton, IL ZIP Codes
2 ZIP codes serve Alton, Illinois: 62002 and 62018. Together they are home to 32,727 residents in 14,011 households. Median household income ranges from $40,438 in 62018 to $61,414 in 62002.
Alton city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 25,279 |
| Households | 10,714 |
| Median household income | $54,568 |
| Median home value | $103,700 |
| Median age | 38 |
| Median rent | $1,015 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 32,727 |
| Households (sum of ZIP codes) | 14,011 |
| Median household income, range across ZIP codes | $40,438 (62018) to $61,414 (62002) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $59,602 |
| Homeowners | 65.8% |
| Households with kids under 18 | 27.4% |
| Moved in the past year | 12.1% |
| Carrier routes in EDDM2GO's route library | 39 routes, 15,086 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Alton: 62002 ($61,414)
- Most residents: 62002 (29,543 people)
- Highest homeownership: 62018 (67.0% own their home)
- Most households with kids: 62018 (40.1% of households)
- Most new movers: 62018 (14.1% moved in last year)
- Youngest median age: 62018 (37.5 years)
- Highest median home value: 62002 ($118,900)
Every ZIP code in Alton
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 62002 | Alton | 29,543 | 12,801 | $61,414 | $118,900 | 65.7% | 26.2% | 11.9% | 36 | 14,639 | 36% of its land; mailing city |
| 62018 | Cottage Hills | 3,184 | 1,210 | $40,438 | $70,200 | 67.0% | 40.1% | 14.1% | 3 | 1,439 | 24% of its land |
A ZIP code is listed for Alton when at least 10% of its land lies inside Alton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Alton. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Alton.
Counties
- Madison County — 31 ZIP codes
Nearby cities sharing these ZIP codes
- East Alton — 3 ZIP codes
- Bethalto — 2 ZIP codes
Price a mailing to Alton ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Alton, IL?
- 62002 and 62018. A ZIP code is listed for Alton when at least 10% of its land lies inside Alton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Alton.
- What is the population of Alton, IL?
- The Census Bureau counts 25,279 residents inside Alton city limits (ACS 2020–2024). The 2 ZIP codes that serve Alton hold 32,727 residents in all.
- What is the median household income in Alton, IL?
- $54,568 inside Alton city limits, per the Census Bureau. Across its ZIP codes the medians run from $40,438 to $61,414.
- Which Alton ZIP code has the highest median household income?
- 62002, at $61,414, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Alton, IL?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 39 carrier routes reaching 15,086 residential and 987 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.