Home > MD > Anne Arundel County > Riva > Zip 21140

Zip Code 21140 — Riva, MD

21140 is a ZIP Code associated with Riva, MD, located within Anne Arundel. The postal region supports an estimated population of 4,417 residents across Data Pending housing units, with a population density of 1,203.9 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.950620, -76.585690)

Data Metric	Local Statistic
Postal / Zip Code	21140
Primary City	Riva
State / Province	MD
County	Anne Arundel
Total Population	4,417
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	1,203.9 people/sq mi
Timezone	America/New_York

How 21140 Compares

Metric	ZIP 21140	Anne Arundel County	MD State Average
Population	4,417	611,016	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	1,203.9 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21035	Davidsonville	3.0 mi	7,879	N/A
Zip 21401	Annapolis	3.3 mi	38,629	N/A
Zip 21037	Edgewater	3.4 mi	20,854	N/A
Zip 21403	Annapolis	5.0 mi	32,681	N/A
Zip 20776	Harwood	5.7 mi	3,315	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 →