Riva, MD 21140 ZIP Code Profile

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Riva, MD

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ZIP Code 21140: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Riva, MD 21140

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 85
  • Single Family Addresses: 1,298
  • Multi-Family Addresses: 0
  • County: Anne Arundel County
  • Centroid: Latitude 38.952, Longitude -76.587
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


21140 ZIP Code Map

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Riva, MD 21140 Data & Demographics (As of July 1, 2016)


Total Population 3,500
Population in Households 3,500
Population in Familes 3,057
Population in Group Qrtrs 0
Population Density1 2,611
Diversity Index2 19


Total Households 1,317
Average Household Size 2.66
Family Households 1,020
Average Family Size 3


Total Housing Units 1,372 (100%)
Owner Occupied HU 1,175 (85.6%)
Renter Occupied HU 142 (10.3%)
Vacant Housing Units 55 ( 4.0%)
Median Home Value $475,116
Average Home Value $542,362


Median Household Income $117,110
Average Household Income $151,153
Per Capita Income $56,877
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.43% 0.65%
Households 0.27% 0.54%
Families 0.16% 0.45%
Median Household Income   1.65%
Per Capita Income   1.74%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Riva, MD 21140 - Peer Comparisons by Rank and Percentile

The table below compares 21140 to the other 455 ZIP Codes in Maryland by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 266 42nd
Population Density1 # 91 80th
Diversity Index2 # 368 19th
Median Household Income # 50 89th
Per Capita Income # 41 91st

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.