Lewis County, Missouri ZIP codes
8 ZIP codes are in Lewis County, plus 4 that cross in from neighboring counties. It's part of the Quincy, IL-MO micro area.
- ZIP codes
- 8
- Population in these ZIPs
- 10,296
- Avg. median income
- $59,100population-weighted
- Cities & towns
- 8
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Lewis County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 63435 | Canton | 4,318 | $62,102 | $199,500 |
| 63438 | Durham | 232 | $42,188 | $187,500 |
| 63440 | Ewing | 1,136 | $60,217 | $267,400 |
| 63447 | La Belle | 1,060 | $43,478 | $94,400 |
| 63448 | La Grange | 1,760 | $61,417 | $185,000 |
| 63452 | Lewistown | 1,026 | $62,292 | $86,500 |
| 63457 | Monticello | 389 | $57,778 | $181,300 |
| 63473 | Williamstown | 375 | $57,174 | $166,300 |
ZIP codes partly in Lewis County
These ZIP codes are mostly in a neighboring county but cover part of Lewis County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 63446 | Knox City | Knox County | 493 | $60,982 | $240,400 |
| 63454 | Maywood | Marion County | 1,104 | $88,192 | $289,100 |
| 63471 | Taylor | Marion County | 770 | $103,182 | $295,300 |
| 63474 | Wyaconda | Clark County | 444 | $51,000 | $68,400 |
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 Lewis County
Nearby counties
Frequently asked questions
How many ZIP codes are in Lewis County, Missouri?
8 ZIP codes are mainly in Lewis County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Lewis County?
ZIP codes in Lewis County use the city names Canton, Durham, Ewing, La Belle, La Grange, Lewistown, Monticello and Williamstown.
What metro area is Lewis County in?
Lewis County is part of the Quincy, IL-MO micropolitan statistical area.