Linn County, Missouri ZIP codes
8 ZIP codes are in Linn County, plus 7 that cross in from neighboring counties.
- ZIP codes
- 8
- Population in these ZIPs
- 8,935
- Avg. median income
- $62,000population-weighted
- Cities & towns
- 8
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ZIP codes in Linn County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 63557 | New Boston | 272 | $60,833 | $284,400 |
| 63566 | Winigan | 72 | $97,396 | $100,000 |
| 64628 | Brookfield | 5,661 | $59,361 | $136,700 |
| 64631 | Bucklin | 836 | $59,917 | $201,500 |
| 64651 | Laclede | 461 | $72,321 | $188,900 |
| 64653 | Linneus | 431 | $54,821 | $192,900 |
| 64659 | Meadville | 793 | $73,698 | $213,200 |
| 64674 | Purdin | 409 | $70,000 | $193,400 |
ZIP codes partly in Linn County
These ZIP codes are mostly in a neighboring county but cover part of Linn County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 64630 | Browning | Sullivan County | 495 | $57,813 | $173,000 |
| 64635 | Chula | Livingston County | 508 | $78,333 | $254,300 |
| 64646 | Humphreys | Sullivan County | 471 | $68,125 | — |
| 64652 | Laredo | Grundy County | 346 | $58,750 | $176,400 |
| 64658 | Marceline | Chariton County | 3,147 | $75,848 | $148,400 |
| 64681 | Sumner | Chariton County | 170 | $70,833 | $80,600 |
| 64688 | Wheeling | Livingston County | 705 | $67,679 | $236,500 |
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 Linn County
Nearby counties
Frequently asked questions
How many ZIP codes are in Linn County, Missouri?
8 ZIP codes are mainly in Linn County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Linn County?
ZIP codes in Linn County use the city names Brookfield, Bucklin, Laclede, Linneus, Meadville, New Boston, Purdin and Winigan.