Hannibal, MO micro area ZIP codes
The Hannibal, MO micropolitan statistical area (CBSA 25300) covers 2 counties in Missouri and 10 ZIP codes.
- ZIP codes
- 10
- Population
- 41,245
- Avg. median income
- $64,000population-weighted
- Counties
- 2
Click anywhere on the map to see which ZIP code it's in.
Counties in the Hannibal, MO area
- Marion County, MO (central)
- Ralls County, MO
ZIP codes in the Hannibal, MO area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 63401 | Hannibal | Marion County | 21,489 | $60,036 | $179,100 |
| 63436 | Center | Ralls County | 1,199 | $56,808 | $227,700 |
| 63454 | Maywood | Marion County | 1,104 | $88,192 | $289,100 |
| 63456 | Monroe City | Marion County | 4,749 | $64,160 | $196,400 |
| 63459 | New London | Ralls County | 4,423 | $67,778 | $278,600 |
| 63461 | Palmyra | Marion County | 5,446 | $69,707 | $245,900 |
| 63462 | Perry | Ralls County | 1,335 | $51,205 | $238,100 |
| 63463 | Philadelphia | Marion County | 711 | $69,688 | $289,900 |
| 63467 | Saverton | Ralls County | 19 | — | — |
| 63471 | Taylor | Marion County | 770 | $103,182 | $295,300 |
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
Frequently asked questions
How many ZIP codes are in the Hannibal, MO micro area?
10 ZIP codes, based on each ZIP code's main county.
Which counties make up the Hannibal, MO area?
Marion County and Ralls County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).