About 21776 - New Windsor, Maryland
Located in Maryland, the United States is home to the mid-sized community of New Windsor, served by ZIP code 21776. It sits within New Windsor County.
Census data puts the population of this ZIP code at 38,491 residents. That's noticeably above the average for a Maryland ZIP code, which sits near 23,118 people.
Median household income is about $110,900 (near the Maryland average).
Other ZIP code codes in Maryland serve areas such as Essex, White Marsh, Frederick.