Alexander County, Illinois ZIP codes
7 ZIP codes are in Alexander County, plus 2 that cross in from neighboring counties. It's part of the Cape Girardeau, MO-IL metro area.
- ZIP codes
- 7
- Population in these ZIPs
- 4,841
- Avg. median income
- $50,200population-weighted
- Cities & towns
- 7
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Alexander County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 62914 | Cairo | 1,765 | $41,103 | $44,600 |
| 62957 | Mc Clure | 640 | $46,053 | $76,200 |
| 62962 | Miller City | 0 | — | — |
| 62969 | Olive Branch | 314 | — | $62,100 |
| 62988 | Tamms | 1,149 | $54,779 | $101,000 |
| 62990 | Thebes | 973 | $64,076 | $114,700 |
| 62993 PO Box | Unity | — | — | — |
ZIP codes partly in Alexander County
These ZIP codes are mostly in a neighboring county but cover part of Alexander County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 62952 | Jonesboro | Union County | 2,852 | $64,097 | $133,700 |
| 62992 | Ullin | Pulaski County | 629 | $62,688 | $59,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Alexander County
Nearby counties
Frequently asked questions
How many ZIP codes are in Alexander County, Illinois?
7 ZIP codes are mainly in Alexander County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Alexander County?
ZIP codes in Alexander County use the city names Cairo, Mc Clure, Miller City, Olive Branch, Tamms, Thebes and Unity.
What metro area is Alexander County in?
Alexander County is part of the Cape Girardeau, MO-IL metropolitan statistical area.