ADELPHI, MD ZIP Code
| City | ADELPHI |
| State | Maryland |
| ZIP Codes count | 1 (see all) |
| Post offices count | 2 (see all) |
| Total population | 15,751 (see all) |
ZIP Code in ADELPHI, Maryland
20783
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of ADELPHI, MD ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 20783 | STANDARD | 49,648 |
Post offices
LANGLEY PARK — Post Office™ 1325 HOLTON LN HYATTSVILLE, MD 20783-9997 |
RIVERDALE — Post Office™ 6411 BALTIMORE AVE RIVERDALE, MD 20737-9998 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
10304 ASTER LN
ADELPHI MD 20783-1101
ADELPHI MD 20783-1101
3052 DUNCAN DR
ADELPHI MD 20783-1110
ADELPHI MD 20783-1110
2673 HIGBEE RD
ADELPHI MD 20783-1532
ADELPHI MD 20783-1532
2492 MISTLETOE PL
ADELPHI MD 20783-1334
ADELPHI MD 20783-1334
8301 OSAGE TER
ADELPHI MD 20783-1758
ADELPHI MD 20783-1758
1948 WOODED CT
ADELPHI MD 20783-1343
ADELPHI MD 20783-1343
Map
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Census data for ADELPHI, MD
Demographic and housing estimates in ADELPHI, MD
| Total population | 15,751 |
| Male | 8,511 |
| Female | 7,240 |
| Total population | 15,751 |
| Under 5 years | 1,273 |
| 5 to 9 years | 937 |
| 10 to 14 years | 760 |
| 15 to 19 years | 817 |
| 20 to 24 years | 1,257 |
| 25 to 34 years | 3,032 |
| 35 to 44 years | 2,188 |
| 45 to 54 years | 2,129 |
| 55 to 59 years | 929 |
| 60 to 64 years | 739 |
| 65 to 74 years | 1,067 |
| 75 to 84 years | 477 |
| 85 years and over | 146 |
| Median age (years) | 33.8 |
| Under 18 years | 3,395 |
| 16 years and over | 12,660 |
| 18 years and over | 12,356 |
| 21 years and over | 11,807 |
| 62 years and over | 2,095 |
| 65 years and over | 1,690 |
| Total population | 15,751 |
| One race | 15,290 |
| White | 2,921 |
| Black or African American | 5,516 |
| American Indian and Alaska Native | 23 |
| Asian | 1,345 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 5,485 |
| Two or more races | 461 |
| Citizen, VOTING AGE 18 and over population | 6,947 |
| Male Citizen, VOTING AGE 18 and over population | 3,458 |
| Female Citizen, VOTING AGE 18 and over population | 3,489 |
Social characteristics in ADELPHI, MD
| Total households | 4,951 |
| Family households (families) | 3,339 |
| Married-couple family | 2,047 |
| Male householder, no wife present, family | 755 |
| Female householder, no husband present, family | 537 |
| Nonfamily households | 1,612 |
| Average household size | 3.15 |
| Average family size | 3.61 |
Economic characteristics in ADELPHI, MD
| Total households | 4,951 |
| Less than $10,000 | 218 |
| $10,000 to $14,999 | 131 |
| $15,000 to $24,999 | 384 |
| $25,000 to $34,999 | 317 |
| $35,000 to $49,999 | 663 |
| $50,000 to $74,999 | 1,102 |
| $75,000 to $99,999 | 705 |
| $100,000 to $149,999 | 854 |
| $150,000 to $199,999 | 288 |
| $200,000 or more | 289 |
| Median household income (dollars) | 63,481 |
Housing characteristics in ADELPHI, MD
| Total housing units | 5,257 |
| Occupied housing units | 4,951 |
| Vacant housing units | 306 |
| Total housing units | 5,257 |
| 1-unit, detached | 1,825 |
| 1-unit, attached | 123 |
| 2 units | 28 |
| 3 or 4 units | 31 |
| 5 to 9 units | 251 |
| 10 to 19 units | 1,275 |
| 20 or more units | 1,724 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 5,257 |
| Built 2014 or later | 16 |
| Built 2010 to 2013 | 60 |
| Built 2000 to 2009 | 27 |
| Built 1990 to 1999 | 488 |
| Built 1980 to 1989 | 657 |
| Built 1970 to 1979 | 1,290 |
| Built 1960 to 1969 | 1,291 |
| Built 1950 to 1959 | 997 |
| Built 1940 to 1949 | 197 |
| Built 1939 or earlier | 234 |
| Total housing units | 5,257 |
| 1 room | 135 |
| 2 rooms | 147 |
| 3 rooms | 913 |
| 4 rooms | 1,474 |
| 5 rooms | 779 |
| 6 rooms | 479 |
| 7 rooms | 290 |
| 8 rooms | 430 |
| 9 rooms or more | 610 |
| Median rooms | 4.5 |
| Total housing units | 5,257 |
| No bedroom | 135 |
| 1 bedroom | 1,054 |
| 2 bedrooms | 1,785 |
| 3 bedrooms | 1,206 |
| 4 bedrooms | 692 |
| 5 or more bedrooms | 385 |
| Occupied housing units | 4,951 |
| Owner-occupied | 2,105 |
| Renter-occupied | 2,846 |
| Average household size of owner-occupied unit | 2.88 |
| Average household size of renter-occupied unit | 3.34 |
| Occupied housing units | 4,951 |
| Moved in 2017 or later | 340 |
| Moved in 2015 to 2016 | 817 |
| Moved in 2010 to 2014 | 1,869 |
| Moved in 2000 to 2009 | 804 |
| Moved in 1990 to 1999 | 702 |
| Moved in 1989 and earlier | 419 |
| Owner-occupied units | 2,105 |
| Less than $50,000 | 110 |
| $50,000 to $99,999 | 366 |
| $100,000 to $149,999 | 87 |
| $150,000 to $199,999 | 178 |
| $200,000 to $299,999 | 448 |
| $300,000 to $499,999 | 700 |
| $500,000 to $999,999 | 216 |
| $1,000,000 or more | 0 |
| Median (dollars) | 269,700 |
| Owner-occupied units | 2,105 |
| Housing units with a mortgage | 1,468 |
| Housing units without a mortgage | 637 |
| Occupied units paying rent | 2,791 |
| Less than $500 | 0 |
| $500 to $999 | 146 |
| $1,000 to $1,499 | 1,433 |
| $1,500 to $1,999 | 888 |
| $2,000 to $2,499 | 235 |
| $2,500 to $2,999 | 52 |
| $3,000 or more | 37 |
| Median (dollars) | 1,451 |
| No rent paid | 55 |
Data is based on 2018 Census
ZIP Codes for other locations
State for ADELPHI
Maryland ZIP CodesOther cities in Maryland