What city is 20817 in?

20817 is a Bethesda, MD mailing address. By land area, 47% lies inside Bethesda, 41% lies inside Potomac, 10% lies inside North Bethesda and 2% lies inside Cabin John.

What is the population of 20817?

About 37,454 people (±1,631), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,908.

What is the median household income in 20817?

$249,332 (±$9,996), 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 20817?

38 USPS carrier routes with 14,986 residential and 653 business mailboxes (15,639 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 20817?

The closest, measured center to center: 20818 (1.7 mi, Cabin John), 20812 (2.1 mi, Glen Echo), 20892 (2.6 mi, Bethesda), 20814 (2.7 mi, Bethesda), 20894 (2.7 mi, Bethesda) and 20816 (3.3 mi, Bethesda).

20817 ZIP Code, Bethesda, MD

20817 is a ZIP code in Bethesda, Maryland in Montgomery County. It covers 14 square miles of land. The closest ZIP codes are 20818, 20812 and 20892. 37,454 people live here in 13,660 households. At about 2,668 people per square mile it has suburban density, and most homes are owner-occupied (81%). Median household income is $249,332, well above the Maryland median of $103,678; the median age is 45.8, older than most ZIP codes.

Quick facts

Mailing city: Bethesda, MD
County: Montgomery County
Land area: 14 sq mi
Population: 37,454
Median household income: $249,332
Carrier routes: 38 (14,986 homes)

Key figures

Measure	Value
Residents	37,454
Households	13,660
Median household income	$249,332
Income per person	$127,135
Median age	45.8
Homeowners	81.4%
Median home value	$1,183,600
Median rent	$3,185
Bachelor's degree or higher	85.6%
Average commute (minutes)	29.1
Households with kids under 18	37.1%
Moved in the past year	13.2%
Below the poverty line	4.0%
Broadband internet	97.1%
Speak a non-English language at home	32.2%

Household income

% of households	Value
<$10K	2.3%
$10–15K	2.0%
$15–25K	2.1%
$25–35K	1.8%
$35–50K	2.6%
$50–75K	6.2%
$75–100K	4.6%
$100–150K	10.6%
$150–200K	9.0%
$200K+	58.7%

Age

% of all residents	Value
<10	11.0%
10–19	16.8%
20–24	3.1%
25–34	6.3%
35–44	11.1%
45–54	16.5%
55–64	14.4%
65–74	10.4%
75+	10.4%

Tenure

% of housing units	Value
Owned, with mortgage	52.8%
Owned outright	24.9%
Rented	17.5%
Vacant	4.8%

Type of building

% of housing units	Value
Detached house	77.1%
Townhome	7.1%
2–4 units	0.8%
5–19 units	1.5%
20+ units	12.8%
Mobile / other	0.7%

Businesses in 20817

1,196 business establishments with 28,442 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 322
Health Care and Social Assistance: 207
Retail Trade: 142
Finance and Insurance: 82
Real Estate and Rental and Leasing: 80
Other Services (except Public Administration): 65
Construction: 48
Administrative and Support and Waste Management and Remediation Services: 45

EDDM carrier routes

20817 has 38 USPS carrier routes with 14,986 residential and 653 business mailboxes. Open the EDDM route map.

Carrier routes in 20817

20817 has 38 USPS carrier routes (38 city (C)) with 14,986 residential and 653 business mailboxes. Routes range from 255 homes (C011) to 808 homes (C066); the median route has 365 homes. The Census counted 13,660 households in 20817 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	33
500–749	4
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 20817 for…

Most businesses

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

Route C020 — USPS business mailboxes 257, 374 homes
Route C059 — USPS business mailboxes 176, 727 homes
Route C002 — USPS business mailboxes 103, 703 homes
Route C034 — USPS business mailboxes 27, 338 homes
Route C035 — USPS business mailboxes 19, 638 homes

Select these 5 routes on the route map

Every carrier route in 20817

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	364	0	$200,001+	—	—	—
C002	City	703	103	$200,001+	—	—	—
C004	City	303	5	$200,001+	—	—	—
C006	City	329	0	$200,001+	—	—	—
C008	City	311	0	$200,001+	—	—	—
C009	City	344	18	$200,001+	—	—	—
C011	City	255	1	$200,001+	—	—	—
C013	City	272	3	$200,001+	—	—	—
C014	City	368	8	$200,001+	—	—	—
C015	City	365	3	—	—	—	—
C016	City	451	1	$200,001+	—	—	—
C017	City	304	1	$200,001+	—	—	—
C019	City	298	0	$200,001+	—	—	—
C020	City	374	257	$101,116	—	—	—
C021	City	262	0	$200,001+	—	—	—
C023	City	351	1	$200,001+	—	—	—
C025	City	464	3	$200,001+	—	—	—
C027	City	282	2	$200,001+	—	—	—
C028	City	442	0	$200,001+	—	—	—
C029	City	368	10	$200,001+	—	—	—
C030	City	394	1	$200,001+	—	—	—
C031	City	373	0	$200,001+	—	—	—
C032	City	319	1	$200,001+	—	—	—
C034	City	338	27	$200,001+	—	—	—
C035	City	638	19	$101,116	—	—	—
C036	City	409	0	$200,001+	—	—	—
C037	City	280	1	$200,001+	—	—	—
C038	City	351	1	$200,001+	—	—	—
C039	City	331	0	$200,001+	—	—	—
C040	City	393	2	$200,001+	—	—	—
C042	City	400	2	$200,001+	—	—	—
C043	City	308	1	$200,001+	—	—	—
C045	City	417	0	$200,001+	—	—	—
C046	City	375	1	$200,001+	—	—	—
C048	City	555	1	$200,001+	—	—	—
C059	City	727	176	$57,778	—	—	—
C066	City	808	4	$57,778	—	—	—
C071	City	360	0	$200,001+	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20817 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

20818 — Cabin John CDP, MD (1.7 mi)
20812 — Glen Echo town, MD (2.1 mi)
20892 — Bethesda CDP, MD (2.6 mi)
20814 — Bethesda CDP, MD (2.7 mi)
20894 — Bethesda CDP, MD (2.7 mi)
20816 — Bethesda CDP, MD (3.3 mi)
20889 — Bethesda CDP, MD (3.5 mi)
20815 — Chevy Chase CDP, MD (4 mi)

Areas that include 20817

Bethesda, MD ZIP codes — 7 ZIP codes
North Bethesda, MD ZIP codes — 6 ZIP codes
Potomac, MD ZIP codes — 2 ZIP codes
Cabin John, MD ZIP codes — 3 ZIP codes
Montgomery County ZIP codes — 48 ZIP codes
Maryland ZIP code data

Where it ranks

Mail every home in 20817

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) 20817, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 20817 in?: 20817 is a Bethesda, MD mailing address. By land area, 47% lies inside Bethesda, 41% lies inside Potomac, 10% lies inside North Bethesda and 2% lies inside Cabin John.
What county is 20817 in?: 20817 is in Montgomery County.
What is the population of 20817?: About 37,454 people (±1,631), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,908.
What is the median household income in 20817?: $249,332 (±$9,996), 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 20817?: 38 USPS carrier routes with 14,986 residential and 653 business mailboxes (15,639 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 20817?: The closest, measured center to center: 20818 (1.7 mi, Cabin John), 20812 (2.1 mi, Glen Echo), 20892 (2.6 mi, Bethesda), 20814 (2.7 mi, Bethesda), 20894 (2.7 mi, Bethesda) and 20816 (3.3 mi, Bethesda).

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