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Demographics, home values, and business data for ZIP code 20689
City
Sunderland
State
Maryland
County
Calvert
Population
1,915
Real Estate · Zillow ZHVI
Typical Home Value
$582,458
Prior Year
$573,468
1-Year Change
+1.6%
Metro: Washington-Arlington-Alexandria, DC-VA-MD-WV · Updated 2026-03-31
ZIP Intelligence · Sprytne.com
ZIP code 20689 covers Sunderland, Maryland, in Calvert County. Population: approximately 1,915 residents. Typical home value: $582,458, up +1.6% YoY.
Sources: US ZIP database · Zillow ZHVI · SEC EDGAR
Timezone
America/New_York
Latitude
38.6490°N
Longitude
-76.5767°
Verified United States Postal Service branch offices serving ZIP code 20689
-97 Cedar Rd, Sunderland, MD
⏰ Weekdays: 8:30 AM - 5:00 PM
🛂 Passport Services: No
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ZIP code 20689 is in Sunderland, Maryland (Calvert County).
The typical home value in ZIP 20689 is $582,458, up +1.6% year-over-year, per Zillow ZHVI data updated 2026-03-31.
ZIP code 20689 has approximately 1,915 residents.
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Geographic data: US ZIP code database. Home values: Zillow Research ZHVI, updated 2026-03-31. Company data: SEC EDGAR.