ZIP code 20817
Where is ZIP code 20817?
Bethesda, Maryland
Montgomery County · Standard ZIP code
ZIP code 20817 belongs to Bethesda, Maryland in Montgomery County. 20817 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 227, 240 and 301. About 37,454 people live in the 20817 area, where the median household income is $249,332. The closest ZIP codes are 20818 (Cabin John, 1.1 mi south), 20812 (Glen Echo, 1.5 mi south) and 20892 (Bethesda, 2.8 mi east).
| ZIP code | 20817 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Bethesda |
| Also accepted | Westlake |
| State | Maryland (MD) |
| County | Montgomery County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 38.9896, -77.1538 map |
| 3-digit prefix | 208 |
Population and income in 20817
| Population | 37,454 · higher than 89% of Maryland ZIP codes |
|---|---|
| People per square mile | 2,668 · higher than 80% of Maryland ZIP codes |
| Median age | 45.8 years · higher than 71% of Maryland ZIP codes |
| Men / women | 49% / 52% |
| Median household income | $249,332 · higher than 98% of Maryland ZIP codes |
| Income per person | $127,135 |
| Below the poverty line | 4.0% |
| Bachelor’s degree or higher | 86% of adults 25+ |
| Median home value | $1,183,600 · higher than 99% of Maryland ZIP codes |
| Median rent | $3,185 a month |
| Housing units | 14,357 |
| Households | 13,660 (2.73 people on average) |
| Owners / renters | 81% / 19% |
| Land area | 14.04 sq mi (plus 0.08 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 20817. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 20817
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20818 | Cabin John, MD | 1.1 mi S | Standard |
| 20812 | Glen Echo, MD | 1.5 mi S | Standard |
| 20892 | Bethesda, MD | 2.8 mi E | Unique |
| 20814 | Bethesda, MD | 2.9 mi E | Standard |
| 20810 | Bethesda, MD | 2.9 mi E | Unique |
| 20811 | Bethesda, MD | 2.9 mi E | Unique |
| 20824 | Bethesda, MD | 2.9 mi E | PO Box only |
| 20816 | Bethesda, MD | 3 mi SE | Standard |
| 22101 | Mc Lean, VA | 3.7 mi S | Standard |
| 22106 | Mc Lean, VA | 3.8 mi S | PO Box only |
| 20815 | Chevy Chase, MD | 3.9 mi E | Standard |
| 20854 | Potomac, MD | 4 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20817 or measure the distance to another ZIP code.
How to address mail to 20817
123 MAIN ST
BETHESDA MD 20817
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts WESTLAKE as the city name for 20817. Adding the 4-digit ZIP+4 code (20817-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Bethesda, MD
All Bethesda ZIP codes with population and income →
Questions
- What city is ZIP code 20817?
- 20817 is a Bethesda, Maryland ZIP code. Westlake is also accepted as the city name.
- What county is 20817 in?
- ZIP code 20817 is in Montgomery County, Maryland.
- What time zone is ZIP code 20817 in?
- 20817 is in the Eastern Time zone (America/New_York).
- What area code is 20817?
- Phone numbers in ZIP code 20817 use area codes 227, 240 and 301.
- What is the population of ZIP code 20817?
- About 37,454 people live in ZIP code 20817, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 20817?
- The median household income in 20817 is $249,332 a year, higher than 98% of Maryland ZIP codes.
- What ZIP codes are near 20817?
- The nearest ZIP codes to 20817 are 20818 (Cabin John, 1.1 miles), 20812 (Glen Echo, 1.5 miles), 20892 (Bethesda, 2.8 miles) and 20814 (Bethesda, 2.9 miles).