20816 ZIP Code, Bethesda, MD

20816 is a ZIP code in Bethesda, Maryland in Montgomery County. It covers 3.6 square miles of land. The closest ZIP codes are 20812, 20016 and 20818. 18,140 people live here in 6,400 households. At about 5,090 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (83%). Median household income is $232,656, well above the Maryland median of $103,678; 41% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents18,140
Households6,400
Median household income$232,656
Income per person$114,267
Median age43.4
Homeowners82.7%
Median home value$1,217,200
Median rent$2,674
Bachelor's degree or higher88.5%
Average commute (minutes)27.3
Households with kids under 1841.4%
Moved in the past year14.5%
Below the poverty line4.5%
Broadband internet98.4%
Speak a non-English language at home21.8%

Household income

% of householdsValue
<$10K1.8%
$10–15K1.1%
$15–25K2.9%
$25–35K1.1%
$35–50K4.3%
$50–75K3.6%
$75–100K7.0%
$100–150K9.2%
$150–200K12.6%
$200K+56.3%

Age

% of all residentsValue
<1013.6%
10–1916.2%
20–245.4%
25–345.6%
35–4412.0%
45–5415.2%
55–6413.1%
65–7410.3%
75+8.5%

Tenure

% of housing unitsValue
Owned, with mortgage53.1%
Owned outright26.1%
Rented16.4%
Vacant4.4%

Type of building

% of housing unitsValue
Detached house75.3%
Townhome1.6%
2–4 units0.6%
5–19 units3.9%
20+ units18.6%
Mobile / other0.0%

Businesses in 20816

425 business establishments with 4,396 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

20816 has 20 USPS carrier routes with 6,663 residential and 231 business mailboxes. Open the EDDM route map.

Carrier routes in 20816

20816 has 20 USPS carrier routes (20 city (C)) with 6,663 residential and 231 business mailboxes. Routes range from 215 homes (C014) to 857 homes (C026); the median route has 286 homes. The Census counted 6,400 households in 20816 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2493
250–49914
500–7492
750–9991
1,000–1,4990
1,500+0

Best routes in 20816 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C005 — USPS business mailboxes 56, 228 homes
  2. Route C026 — USPS business mailboxes 51, 857 homes
  3. Route C018 — USPS business mailboxes 49, 505 homes
  4. Route C020 — USPS business mailboxes 34, 525 homes
  5. Route C001 — USPS business mailboxes 14, 274 homes

Select these 5 routes on the route map

Every carrier route in 20816

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City27414$200,001+———
C002City2820$200,001+———
C004City3240$200,001+———
C005City22856$200,001+———
C007City2712$200,001+———
C009City3262$200,001+———
C011City2620$200,001+———
C012City3502$169,277———
C013City2560$200,001+———
C014City2156$200,001+———
C015City2351$200,001+———
C018City50549$169,277———
C019City3330$200,001+———
C020City52534$200,001+———
C021City29610$200,001+———
C026City85751$169,277———
C031City2862$200,001+———
C032City2850$200,001+———
C033City2641$200,001+———
C034City2891$200,001+———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20816 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

Areas that include 20816

Where it ranks

Mail every home in 20816

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) 20816, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 20816 in?
20816 is a Bethesda, MD mailing address. By land area, 64% lies inside Bethesda and 35% lies inside Brookmont.
What county is 20816 in?
20816 is in Montgomery County.
What is the population of 20816?
About 18,140 people (±1,181), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 17,035.
What is the median household income in 20816?
$232,656 (±$21,899), 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 20816?
20 USPS carrier routes with 6,663 residential and 231 business mailboxes (6,895 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 20816?
The closest, measured center to center: 20812 (1.5 mi, Glen Echo), 20016 (2.1 mi, Washington), 20818 (2.5 mi, Cabin John), 22101 (2.7 mi, McLean), 20815 (2.8 mi, Chevy Chase) and 20894 (2.9 mi, Bethesda).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.