Silver Spring, MD 20905 ZIP Code Profile

Related Place Profiles:
Cloverly, MD | Colesville, MD | Silver Spring, MD

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ZIP Code 20905: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Silver Spring, MD 20905

Acceptable Alternative
Colesville, MD 20905

Not Acceptable, USPS
Cloverly, MD 20905

  • ZIP Code Type: STANDARD
  • County: Montgomery County
  • Centroid: Latitude 39.102, Longitude -76.991
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 88
  • PO Box Addresses: 0
  • Residential Addresses: 6,095
    • Multi-Family Addresses: 3
    • Single Family Addresses: 6,092

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic 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 demographic data.


20905 ZIP Code Map

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Silver Spring, MD 20905 Data & Demographics (As of July 1, 2017)


Total Population 17,812
Daytime Population: Workers 2,520
Daytime Population: Residents 8,606
Total Daytime Population (TDP) 11,126
Ratio TDP/Total Population1 0.62
Population in Households 17,721
Population in Familes 16,148
Population in Group Qrtrs 91
Population Density2 1,311
Diversity Index3 76


Median Household Income $125,861
Average Household Income $162,936
Per Capita Income $52,749


Total Housing Units 5,848 (100%)
Owner Occupied HU 5,119 (87.5%)
Renter Occupied HU 627 (10.7%)
Vacant Housing Units 102 ( 1.7%)
Median Home Value $526,312
Average Home Value $580,914


Total Households 5,746
Average Household Size 3.08
Family Households 4,795
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.64% 0.7%
Households 0.53% 0.6%
Families 0.48% 0.57%
Median Household Income   1.24%
Per Capita Income   1.64%

Silver Spring, MD 20905 - Peer Comparisons by Rank and Percentile

The table below compares 20905 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 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 # 130 72nd
Population Density # 142 69th
Diversity Index # 31 93rd
Median Household Income # 37 92nd
Per Capita Income # 58 88th

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

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