Green Castle, MO ZIP code
The ZIP code for Green Castle, Missouri is 63544. It is in Adair County.
- Population in these ZIPs
- 1,159
- Avg. median income
- $44,200population-weighted
- Typical home value
- $218,000population-weighted
- Metro area
- Kirksville, MO
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Green Castle, MO ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 63544 | 1,159 | $44,167 | $218,000 |
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 near Green Castle
- Novinger 4 mi
- Green City 6 mi
- Worthington 14 mi
- Milan 15 mi
- Kirksville 15 mi
- Winigan 16 mi
- Pollock 16 mi
- Unionville 17 mi
- New Boston 18 mi
- Livonia 19 mi
- Greentop 19 mi
- Queen City 20 mi
Frequently asked questions
What is the ZIP code for Green Castle, MO?
The ZIP code for Green Castle, MO is 63544.
What county is Green Castle, Missouri in?
Green Castle ZIP codes are in Adair County.