ZIP Code 21644, Maryland

ZCTA5 21644 is a 5-digit ZIP Code area located in Queen Anne's County, Maryland. As of official census estimates, it has a reported population of 81. The land area covers 3.62 sq mi. ^[1]

Demographics & Population

Demographic Metric	Estimate / Count	Margin of Error	Survey Period / Source
Total Population	81	±87	2020-2024 / Census ACS 5-Year 2024
Median Age	64.5 yrs	±2.8	2020-2024 / Census ACS 5-Year 2024
Total Households	21	±23	2020-2024 / Census ACS 5-Year 2024

Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric	Estimate / Value	Margin of Error
Total Housing Units	21	±23
Occupied Housing Units	21	±23
Vacant Housing Units	0	±14
Median Home Value	Suppressed	—
Median Gross Rent	Suppressed	—

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric	Estimate / Value	Margin of Error
Median Household Income	Suppressed	—
Per Capita Income	$29,970	±$9,645
Poverty Rate	0%	±17.3%
Population Below Poverty Level	0	±14
Unemployment Rate	19.2%	±22.8%
Civilian Labor Force, Employed	42	±44
Broadband Internet Rate	100%	±0%

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF QUEEN ANNES GUS Population: 53,688 (2024) ID: 185797	County	Official County Government	Contact: IT MANAGER 107 N LIBERTY ST, CENTREVILLE MD 21617-1048

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides

Institution	Type	Grades	Location
Caroline Career & Technology Center	Career and Technical School Nearby	09-12	Ridgely, MD
Centreville Elementary School	Regular School Nearby	PK-02	Centreville, MD
Centreville Middle School	Regular School Nearby	06-08	Centreville, MD
Church Hill Elementary School	Regular School Nearby	PK-04	Church Hill, MD
Clayton Elementary School	Regular School Nearby	KG-04	Clayton, DE
Clayton Intermediate School	Regular School Nearby	05-06	Clayton, DE
First State Military Academy	Regular School Nearby	09-12	Clayton, DE
Greensboro Elementary School	Regular School Nearby	PK-05	Greensboro, MD
H. H. Garnett Elementary	Regular School Nearby	PK-05	Chestertown, MD
Hartly Elementary School	Regular School Nearby	KG-04	Hartly, DE

Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS

Facility Name	Category	Relationship	Address / Location	Contact
Washington College	College	12.5 mi away	300 Washington Ave, Chestertown, MD, 21620-1438	4107787700 Website →
NORTH COUNTY BRANCH	Library	10.4 mi away	101 CEDAR LANE, GREENSBORO, MD, 21639	(410) 482-2173
Chesapeake College	College	16.0 mi away	1000 College Circle, Wye Mills, MD, 21679-0008	4108225400 Website →
CENTREVILLE BRANCH	Library	11.5 mi away	121 S. COMMERCE STREET, CENTREVILLE, MD, 21617	(410) 758-0980
Delaware Technical Community College-Terry	College	17.8 mi away	100 Campus Drive, Dover, DE, 19901	3028571000 Website →
MOBILE LIBRARY	Library	11.5 mi away	121 S. COMMERCE STREET, CENTREVILLE, MD, 21617	(410) 758-0980
Polytech Adult Education	College Vocational	17.9 mi away	823 Walnut Shade Road, Woodside, DE, 19980-0000	3026974545 Website →
CHESTERTOWN BRANCH	Library	12.3 mi away	408 HIGH ST., CHESTERTOWN, MD, 21620	(410) 778-3636
Delaware Technical Community College-Central Office	College	17.9 mi away	1832 North Dupont Highway, Dover, DE, 19901	3027393737 Website →
NORTH COUNTY BRANCH AT GALENA	Library	15.6 mi away	119 NORTH MAIN STREET, GALENA, MD, 21635	(410) 648-5380

Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at CHESTERTOWN, MD US, located 11.7 miles from ZCTA5 21644. Local microclimates, topography, and elevation may cause municipal conditions to differ.

Month	High (°F)	Low (°F)	Mean (°F)	Precip (in)	Snow (in)
January	40.8°	27.1°	34.0°	3.34"	5.2"
February	44.2°	28.1°	36.2°	2.89"	7.9"
March	52.5°	35.1°	43.8°	4.25"	1.7"
April	64.4°	45.0°	54.7°	3.72"	0.2"
May	73.6°	54.9°	64.2°	3.88"	0.0"
June	82.2°	64.0°	73.1°	4.41"	0.0"
July	86.6°	68.7°	77.7°	4.35"	0.0"
August	85.0°	67.2°	76.1°	3.56"	0.0"
September	78.3°	60.2°	69.2°	4.90"	0.0"
October	66.8°	48.1°	57.4°	3.67"	0.0"
November	55.5°	38.1°	46.8°	3.18"	0.0"
December	45.4°	31.1°	38.3°	3.81"	1.7"

Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery

Community Name	Classification	Distance	Population
Barclay town	Town	2.1 mi	—
Sudlersville town	Town	4.7 mi	—
Templeville town	Town	5.9 mi	—
Church Hill town	Town	6.0 mi	—
Henderson town	Town	6.5 mi	—
Marydel town	Town	6.7 mi	—

Sources & Data Provenance

1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 21644. • Official Source Dataset →
2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.

Read complete data sources, methodology, and licensing documentation →