ALTON, IL ZIP Code
| City | ALTON |
| State | Illinois |
| ZIP Codes count | 1 (see all) |
| Post offices count | 3 (see all) |
| Total population | 26,884 (see all) |
ZIP Code in ALTON, Illinois
62002
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of ALTON, IL ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 62002 | STANDARD | 30,913 |
Post offices
ALTON — Post Office™ 2350 HOMER M ADAMS PKWY ALTON, IL 62002-9998 |
ALTON SQUARE — Post Office™ 117 ALTON SQ ALTON, IL 62002-9994 |
UPPER ALTON — Post Office™ 1624 MAIN ST ALTON, IL 62002-9996 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
394 BLUE RIDGE RD
ALTON IL 62002-9446
ALTON IL 62002-9446
5046 CINDERELLA DR
ALTON IL 62002-5850
ALTON IL 62002-5850
8297 GRANDE TERRE PL
ALTON IL 62002-7655
ALTON IL 62002-7655
2239 MILLS AVE
ALTON IL 62002-2855
ALTON IL 62002-2855
5261 RICHLAND WOODS DR
ALTON IL 62002-6969
ALTON IL 62002-6969
1644 STATE ST
ALTON IL 62002-3458
ALTON IL 62002-3458
Map
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Census data for ALTON, IL
Demographic and housing estimates in ALTON, IL
| Total population | 26,884 |
| Male | 12,554 |
| Female | 14,330 |
| Total population | 26,884 |
| Under 5 years | 1,608 |
| 5 to 9 years | 1,854 |
| 10 to 14 years | 1,742 |
| 15 to 19 years | 1,781 |
| 20 to 24 years | 1,264 |
| 25 to 34 years | 4,006 |
| 35 to 44 years | 3,320 |
| 45 to 54 years | 3,284 |
| 55 to 59 years | 1,799 |
| 60 to 64 years | 1,888 |
| 65 to 74 years | 2,441 |
| 75 to 84 years | 1,253 |
| 85 years and over | 644 |
| Median age (years) | 38.8 |
| Under 18 years | 6,362 |
| 16 years and over | 21,321 |
| 18 years and over | 20,522 |
| 21 years and over | 19,660 |
| 62 years and over | 5,435 |
| 65 years and over | 4,338 |
| Total population | 26,884 |
| One race | 25,784 |
| White | 19,086 |
| Black or African American | 6,487 |
| American Indian and Alaska Native | 24 |
| Asian | 113 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 74 |
| Two or more races | 1,100 |
| Citizen, VOTING AGE 18 and over population | 20,315 |
| Male Citizen, VOTING AGE 18 and over population | 9,345 |
| Female Citizen, VOTING AGE 18 and over population | 10,970 |
Social characteristics in ALTON, IL
| Total households | 11,492 |
| Family households (families) | 6,285 |
| Married-couple family | 3,539 |
| Male householder, no wife present, family | 541 |
| Female householder, no husband present, family | 2,205 |
| Nonfamily households | 5,207 |
| Average household size | 2.29 |
| Average family size | 3.07 |
Economic characteristics in ALTON, IL
| Total households | 11,492 |
| Less than $10,000 | 1,216 |
| $10,000 to $14,999 | 951 |
| $15,000 to $24,999 | 1,584 |
| $25,000 to $34,999 | 1,442 |
| $35,000 to $49,999 | 1,911 |
| $50,000 to $74,999 | 1,865 |
| $75,000 to $99,999 | 1,119 |
| $100,000 to $149,999 | 1,029 |
| $150,000 to $199,999 | 257 |
| $200,000 or more | 118 |
| Median household income (dollars) | 38,581 |
Housing characteristics in ALTON, IL
| Total housing units | 13,769 |
| Occupied housing units | 11,492 |
| Vacant housing units | 2,277 |
| Total housing units | 13,769 |
| 1-unit, detached | 10,147 |
| 1-unit, attached | 182 |
| 2 units | 908 |
| 3 or 4 units | 814 |
| 5 to 9 units | 427 |
| 10 to 19 units | 230 |
| 20 or more units | 749 |
| Mobile home | 312 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 13,769 |
| Built 2014 or later | 3 |
| Built 2010 to 2013 | 90 |
| Built 2000 to 2009 | 545 |
| Built 1990 to 1999 | 582 |
| Built 1980 to 1989 | 638 |
| Built 1970 to 1979 | 1,149 |
| Built 1960 to 1969 | 1,176 |
| Built 1950 to 1959 | 2,897 |
| Built 1940 to 1949 | 2,319 |
| Built 1939 or earlier | 4,370 |
| Total housing units | 13,769 |
| 1 room | 370 |
| 2 rooms | 235 |
| 3 rooms | 1,154 |
| 4 rooms | 3,037 |
| 5 rooms | 3,025 |
| 6 rooms | 2,557 |
| 7 rooms | 1,475 |
| 8 rooms | 1,010 |
| 9 rooms or more | 906 |
| Median rooms | 5.2 |
| Total housing units | 13,769 |
| No bedroom | 382 |
| 1 bedroom | 1,773 |
| 2 bedrooms | 5,428 |
| 3 bedrooms | 4,665 |
| 4 bedrooms | 1,268 |
| 5 or more bedrooms | 253 |
| Occupied housing units | 11,492 |
| Owner-occupied | 6,859 |
| Renter-occupied | 4,633 |
| Average household size of owner-occupied unit | 2.31 |
| Average household size of renter-occupied unit | 2.26 |
| Occupied housing units | 11,492 |
| Moved in 2017 or later | 796 |
| Moved in 2015 to 2016 | 1,195 |
| Moved in 2010 to 2014 | 3,160 |
| Moved in 2000 to 2009 | 2,577 |
| Moved in 1990 to 1999 | 1,703 |
| Moved in 1989 and earlier | 2,061 |
| Owner-occupied units | 6,859 |
| Less than $50,000 | 1,289 |
| $50,000 to $99,999 | 3,342 |
| $100,000 to $149,999 | 1,357 |
| $150,000 to $199,999 | 380 |
| $200,000 to $299,999 | 274 |
| $300,000 to $499,999 | 191 |
| $500,000 to $999,999 | 26 |
| $1,000,000 or more | 0 |
| Median (dollars) | 80,400 |
| Owner-occupied units | 6,859 |
| Housing units with a mortgage | 4,206 |
| Housing units without a mortgage | 2,653 |
| Occupied units paying rent | 4,405 |
| Less than $500 | 989 |
| $500 to $999 | 2,555 |
| $1,000 to $1,499 | 739 |
| $1,500 to $1,999 | 89 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 33 |
| Median (dollars) | 759 |
| No rent paid | 228 |
Data is based on 2018 Census
ZIP Codes for other locations
State for ALTON
Illinois ZIP CodesOther cities in Illinois