Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2021

ZIP Codes for City of Green Castle, MO

Green Castle, MO Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 63544StandardSullivan818660

Timezone(s):Central (GMT -06:00)
Population:818 (More Details)
Male Population:399
Female Population:419
Median Age:44
ZIP Codes:1
Area Codes:1
Total Area:652 square miles (county)
Land Area:648 square miles (county)
Water Area:4 square miles (county)

Green Castle, MO Demographic Information *

There is no Census data for the city of GREEN CASTLE, MO. We have pulled information for the ZIP Code 63544 instead.
Total population818
Male population399
Female population419
Median age (years)44.2
White Population802
Black Population2
Indian Population2
Asian Population0
Hawaiian Population0
Hispanic Population9
Median age (Male)44.9
Median age (Female)43.6
Total households344
Family households (families)240
Average household size2.38
Average family size2.9
Total housing units460
* Demographic data is based on 2010 Census.

Green Castle, MO Other Information

  • Located in SULLIVAN County, Missouri
  • Green Castle, MO is also known as:
    • SIDNEY, MO

42 Cities within 30 miles of Green Castle, MO Products


  1. U.S. Postal Service [Last Updated: 10/1/2021],
  2. Internal Data Creation [Last Updated: 10/1/2021],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],