20906 ZIP Code, Silver Spring, MD
20906 is a ZIP code in Silver Spring, Maryland in Montgomery County. It covers 13 square miles of land. The closest ZIP codes are 20853, 20902 and 20851. 70,595 people live here in 25,958 households, which puts it among the most populous 1% of Maryland ZIP codes. At about 5,544 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (66% own). Median household income is $97,521, close to the Maryland median of $103,678.
Quick facts
- Mailing city: Silver Spring, MD
- County: Montgomery County
- Land area: 13 sq mi
- Population: 70,595
- Median household income: $97,521
- Carrier routes: 50 (27,180 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 70,595 |
| Households | 25,958 |
| Median household income | $97,521 |
| Income per person | $45,680 |
| Median age | 41.2 |
| Homeowners | 66.4% |
| Median home value | $455,800 |
| Median rent | $1,963 |
| Bachelor's degree or higher | 42.5% |
| Average commute (minutes) | 34.9 |
| Households with kids under 18 | 31.8% |
| Moved in the past year | 11.4% |
| Below the poverty line | 9.4% |
| Broadband internet | 91.6% |
| Speak a non-English language at home | 54.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.3% |
| $10–15K | 2.9% |
| $15–25K | 4.9% |
| $25–35K | 6.1% |
| $35–50K | 7.6% |
| $50–75K | 13.6% |
| $75–100K | 11.8% |
| $100–150K | 18.2% |
| $150–200K | 11.4% |
| $200K+ | 18.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.4% |
| 10–19 | 12.8% |
| 20–24 | 5.6% |
| 25–34 | 10.8% |
| 35–44 | 14.0% |
| 45–54 | 11.0% |
| 55–64 | 12.5% |
| 65–74 | 9.9% |
| 75+ | 11.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 39.4% |
| Owned outright | 24.1% |
| Rented | 31.6% |
| Vacant | 4.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 34.2% |
| Townhome | 20.0% |
| 2–4 units | 3.0% |
| 5–19 units | 25.2% |
| 20+ units | 17.5% |
| Mobile / other | 0.1% |
Businesses in 20906
772 business establishments with 7,233 employees (ZIP Codes Business Patterns 2023).
- Construction: 148
- Health Care and Social Assistance: 122
- Professional, Scientific, and Technical Services: 88
- Accommodation and Food Services: 73
- Other Services (except Public Administration): 73
- Retail Trade: 71
- Administrative and Support and Waste Management and Remediation Services: 61
- Finance and Insurance: 38
EDDM carrier routes
20906 has 50 USPS carrier routes with 27,180 residential and 458 business mailboxes. Open the EDDM route map.
Carrier routes in 20906
20906 has 50 USPS carrier routes (50 city (C)) with 27,180 residential and 458 business mailboxes. Routes range from 312 homes (C063) to 948 homes (C059); the median route has 535 homes. The Census counted 25,958 households in 20906 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 20 |
| 500–749 | 27 |
| 750–999 | 3 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 20906 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C063 — USPS business mailboxes 94, 312 homes
- Route C074 — USPS business mailboxes 47, 400 homes
- Route C067 — USPS business mailboxes 44, 732 homes
- Route C046 — USPS business mailboxes 41, 574 homes
- Route C083 — USPS business mailboxes 38, 434 homes
Select these 5 routes on the route map
Every carrier route in 20906
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C002 | City | 682 | 3 | $67,843 | — | — | — |
| C003 | City | 698 | 2 | $57,921 | — | — | — |
| C004 | City | 334 | 25 | $78,709 | — | — | — |
| C006 | City | 672 | 5 | $86,404 | — | — | — |
| C043 | City | 591 | 1 | $154,971 | — | — | — |
| C044 | City | 427 | 0 | $173,095 | — | — | — |
| C045 | City | 401 | 0 | $102,151 | — | — | — |
| C046 | City | 574 | 41 | $120,210 | — | — | — |
| C047 | City | 492 | 27 | $120,210 | — | — | — |
| C048 | City | 620 | 1 | $47,934 | — | — | — |
| C049 | City | 529 | 1 | $67,843 | — | — | — |
| C050 | City | 527 | 0 | $96,695 | — | — | — |
| C051 | City | 394 | 5 | $113,989 | — | — | — |
| C052 | City | 385 | 1 | $103,163 | — | — | — |
| C053 | City | 337 | 0 | $96,640 | — | — | — |
| C054 | City | 543 | 1 | $120,210 | — | — | — |
| C055 | City | 636 | 1 | $55,562 | — | — | — |
| C056 | City | 722 | 2 | $81,451 | — | — | — |
| C057 | City | 373 | 1 | $106,623 | — | — | — |
| C058 | City | 658 | 2 | $54,613 | — | — | — |
| C059 | City | 948 | 8 | $83,505 | — | — | — |
| C060 | City | 637 | 0 | $96,695 | — | — | — |
| C061 | City | 388 | 0 | $102,151 | — | — | — |
| C063 | City | 312 | 94 | $152,659 | — | — | — |
| C064 | City | 362 | 2 | $168,906 | — | — | — |
| C065 | City | 366 | 15 | $101,028 | — | — | — |
| C066 | City | 483 | 29 | $173,095 | — | — | — |
| C067 | City | 732 | 44 | $81,451 | — | — | — |
| C068 | City | 580 | 0 | $57,921 | — | — | — |
| C069 | City | 502 | 2 | $125,916 | — | — | — |
| C070 | City | 348 | 1 | $102,151 | — | — | — |
| C072 | City | 724 | 1 | $29,367 | — | — | — |
| C073 | City | 861 | 3 | $73,535 | — | — | — |
| C074 | City | 400 | 47 | $96,640 | — | — | — |
| C075 | City | 353 | 0 | $125,916 | — | — | — |
| C076 | City | 895 | 4 | $66,486 | — | — | — |
| C077 | City | 459 | 4 | $106,623 | — | — | — |
| C078 | City | 584 | 12 | $66,486 | — | — | — |
| C079 | City | 628 | 10 | $152,659 | — | — | — |
| C080 | City | 742 | 1 | $55,562 | — | — | — |
| C082 | City | 423 | 6 | $133,307 | — | — | — |
| C083 | City | 434 | 38 | $116,170 | — | — | — |
| C085 | City | 578 | 3 | $54,613 | — | — | — |
| C086 | City | 523 | 5 | $168,906 | — | — | — |
| C088 | City | 504 | 0 | $86,404 | — | — | — |
| C089 | City | 602 | 2 | $27,631 | — | — | — |
| C090 | City | 574 | 3 | $200,000+ | — | — | — |
| C091 | City | 680 | 0 | $27,631 | — | — | — |
| C095 | City | 541 | 5 | $125,916 | — | — | — |
| C096 | City | 422 | 0 | $168,906 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20906 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 20853 — Aspen Hill CDP, MD (2.4 mi)
- 20902 — Wheaton CDP, MD (3.1 mi)
- 20851 — Rockville city, MD (3.6 mi)
- 20905 — Cloverly CDP, MD (3.9 mi)
- 20896 — Garrett Park town, MD (4.2 mi)
- 20895 — South Kensington CDP, MD (4.3 mi)
- 20904 — Colesville CDP, MD (4.3 mi)
- 20852 — North Bethesda CDP, MD (4.4 mi)
Areas that include 20906
- Silver Spring, MD ZIP codes — 8 ZIP codes
- Aspen Hill, MD ZIP codes — 2 ZIP codes
- Wheaton, MD ZIP codes — 2 ZIP codes
- Olney, MD ZIP codes — 5 ZIP codes
- Glenmont, MD ZIP codes — 2 ZIP codes
- Leisure World, MD ZIP codes — 1 ZIP code
- Layhill, MD ZIP codes — 1 ZIP code
- Montgomery County ZIP codes — 48 ZIP codes
- Maryland ZIP code data
Where it ranks
- No. 5 of 8: highest median household income in Silver Spring, MD
- No. 3 of 8: highest share of owner-occupied homes in Silver Spring, MD
- No. 5 of 8: highest share of residents who moved in during the past year in Silver Spring, MD
- No. 2 of 8: highest median age in Silver Spring, MD
Mail every home in 20906
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 20906, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 20906 in?
- 20906 is a Silver Spring, MD mailing address. By land area, 27% lies inside Aspen Hill, 20% lies inside Glenmont, 16% lies inside Wheaton and 12% lies inside Layhill.
- What county is 20906 in?
- 20906 is in Montgomery County.
- What is the population of 20906?
- About 70,595 people (±2,836), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 71,641.
- What is the median household income in 20906?
- $97,521 (±$4,636), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 20906?
- 50 USPS carrier routes with 27,180 residential and 458 business mailboxes (27,638 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 20906?
- The closest, measured center to center: 20853 (2.4 mi, Aspen Hill), 20902 (3.1 mi, Wheaton), 20851 (3.6 mi, Rockville), 20905 (3.9 mi, Cloverly), 20896 (4.2 mi, Garrett Park) and 20895 (4.3 mi, South Kensington).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.