Silver Spring, MD 20904 ZIP Code Profile

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

ZIP Code 20904: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Silver Spring, MD 20904

Acceptable Alternative
Colesville, MD 20904

Not Acceptable, USPS
Cloverly, MD 20904

  • ZIP Code Type: STANDARD
  • County: Montgomery County
  • Centroid: Latitude 39.065, Longitude -76.981
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 20904 has segments in 2 Counties / Independent Cities (Montgomery, Prince Georges).

  • Businesses Addresses: 653
  • PO Box Addresses: 0
  • Residential Addresses: 21,301
    • Multi-Family Addresses: 9,179
    • Single Family Addresses: 12,122

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 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.


20904 ZIP Code Map

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Silver Spring, MD 20904 Data & Demographics (As of July 1, 2017)


Total Population 59,078
Daytime Population: Workers 17,165
Daytime Population: Residents 29,296
Total Daytime Population (TDP) 46,461
Ratio TDP/Total Population1 0.79
Population in Households 58,612
Population in Familes 47,830
Population in Group Qrtrs 466
Population Density2 4,438
Diversity Index3 78


Median Household Income $76,046
Average Household Income $97,663
Per Capita Income $36,336


Total Housing Units 22,796 (100%)
Owner Occupied HU 11,628 (51.0%)
Renter Occupied HU 10,178 (44.6%)
Vacant Housing Units 990 ( 4.3%)
Median Home Value $400,401
Average Home Value $421,508


Total Households 21,806
Average Household Size 2.69
Family Households 14,462
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 0.67% 0.76%
Households 0.5% 0.66%
Families 0.37% 0.57%
Median Household Income   1.75%
Per Capita Income   2.34%

Silver Spring, MD 20904 - Peer Comparisons by Rank and Percentile

The table below compares 20904 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 # 7 99th
Population Density # 52 89th
Diversity Index # 25 95th
Median Household Income # 229 50th
Per Capita Income # 220 52nd

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

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