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Green Castle, MO
City in Sullivan County, Missouri.
Population
332
Land area
0.4sq mi
People per sq mi
743
ZIP codes
0
Green Castle and its ZIP codes
Green Castle at a glance
- Green Castle is about 8.2 times as dense as Missouri as a whole.
Economy and federal money
Jobs, pay, income and spending are for Sullivan County. PPP loans are for Green Castle.
Unemployment rate
4.5%
Aug 2026, +0.5 pts in a year
Average annual pay
$51,932
2,306 jobs, 2025
Income per person
$52,864
BEA, 2024
Federal spending
$38.47M
FY 2026, $6,412 per person
Environment and hazard risk
Green Castle, MO, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: landslide
Storm events since 1996
261
Countywide, mostly hail
July high / Jan low
85° / 13°F
40.7 inches of rain a year
Health statistics
Share of adults in Green Castle, MO, CDC PLACES estimates
Obesity
38.2%
U.S. 33.3% +4.9 pts
Diabetes
14.3%
U.S. 12.1% +2.2 pts
Smoking
17.8%
U.S. 12.8% +5.0 pts
Uninsured (18-64)
9.4%
U.S. 11.1% -1.7 pts
Cities near Green Castle
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Green CityCity | 4.1 mi | 1.4 |
| NovingerCity | 9.3 mi | 0.8 |
| ConnelsvilleCensus-designated place | 9.4 mi | 0.3 |
| PollockVillage | 13 mi | 0.2 |
| MilanCity | 14 mi | 1.8 |
| WorthingtonVillage | 14 mi | 0.1 |
| WiniganCensus-designated place | 15 mi | 0.5 |
| UnionvilleCity | 16 mi | 2 |
| KirksvilleCity | 17 mi | 14.4 |
| GreentopCity | 18 mi | 0.8 |
| LivoniaVillage | 18 mi | 0.3 |
| South GiffordVillage | 19 mi | 0.2 |
| Queen CityCity | 19 mi | 1 |
| MillardVillage | 21 mi | 0.1 |
| BrowningCity | 22 mi | 0.5 |
| GlenwoodVillage | 24 mi | 0.7 |
Frequently asked questions
- What county is Green Castle, MO in?
- Green Castle is in Sullivan County, Missouri.
- What is the population of Green Castle, MO?
- About 332 people live in Green Castle, based on American Community Survey 5-year estimates.
- What cities are near Green Castle?
- Nearby places include Green City (4.1 mi), Novinger (9.3 mi), Connelsville (9.4 mi), Pollock (13 mi), Milan (14 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023