Home > MD > Calvert County > Solomons > Zip 20688

Zip Code 20688 — Solomons, MD

20688 is a ZIP Code associated with Solomons, MD, located within Calvert. The postal region supports an estimated population of 1,290 residents across Data Pending housing units, with a population density of 432.5 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.334750, -76.469650)

Data Metric	Local Statistic
Postal / Zip Code	20688
Primary City	Solomons
State / Province	MD
County	Calvert
Total Population	1,290
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	432.5 people/sq mi
Timezone	America/New_York

How 20688 Compares

Metric	ZIP 20688	Calvert County	MD State Average
Population	1,290	92,015	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	432.5 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 20629	Dowell	0.9 mi	1,150	N/A
Zip 20657	Lusby	3.6 mi	20,699	N/A
Zip 20619	California	4.3 mi	14,212	N/A
Zip 20670	Patuxent River	4.5 mi	2,046	N/A
Zip 20636	Hollywood	5.7 mi	10,486	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →