Zip Code 20609 — Avenue, MD

ZIP Code 20609 is associated with Avenue, MD, in St. Mary's County. The listed population estimate is 714; estimated density is 27.5 people per square mile. Among records with population estimates, it ranks #16 of 26 in St. Mary's County and #371 of 470 in MD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.271910, -76.746250)

Data MetricLocal Statistic
Postal / Zip Code20609
Primary CityAvenue
State / ProvinceMD
CountySt. Mary's
Total Population714
Population Density27.5 people/sq mi
TimezoneAmerica/New_York

How 20609 Compares

MetricZIP 20609St. Mary's County recordsMD records
Population estimate714113,480 (sum)6,205,597 (sum)
Population Density27.5 /sq mi----
County population rank#16 of 26----
State population rank#371 of 470----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MD

ZIP CodeCityDistancePopulation estimate
ZIP 20606Abell1.3 mi291
ZIP 20618Bushwood2.4 mi1,705
ZIP 20626Coltons Point2.9 mi284
ZIP 20624Clements4.4 mi796
ZIP 20621Chaptico4.8 mi958

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 →