NEW CASTLE, DE ZIP Code
| City | NEW CASTLE |
| State | Delaware |
| ZIP Codes count | 3 (see all) |
| Post offices count | 3 (see all) |
| Total population | 5,359 (see all) |
19720, 19721, 19726
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 NEW CASTLE, DE ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 19720 | STANDARD | 60,599 |
| 19721 | UNIQUE | – |
| 19726 | UNIQUE | – |
Post offices
MANOR — Post Office™ 100 MCMULLEN AVE NEW CASTLE, DE 19720-9996 |
NEW CASTLE — Post Office™ 501 DELAWARE ST NEW CASTLE, DE 19720-9998 |
WILMINGTON BOX — Post Office™ 147 QUIGLEY BLVD HISTORIC NEW CASTLE, DE 19720-9696 |
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
35 COMMONS BLVD
NEW CASTLE DE 19720-16ND
NEW CASTLE DE 19720-16ND
21 DUNNING CT
NEW CASTLE DE 19720-3805
NEW CASTLE DE 19720-3805
95 DUQUESNE CT
NEW CASTLE DE 19720-3703
NEW CASTLE DE 19720-3703
502 FRANK ORCHARDS LN
NEW CASTLE DE 19720-8731
NEW CASTLE DE 19720-8731
120 HANOVER WAY
NEW CASTLE DE 19720-3900
NEW CASTLE DE 19720-3900
129 STUYVESANT AVE
NEW CASTLE DE 19720-4526
NEW CASTLE DE 19720-4526
Map
Census data for NEW CASTLE, DE
Demographic and housing estimates in NEW CASTLE, DE
| Total population | 5,359 |
| Male | 2,641 |
| Female | 2,718 |
| Total population | 5,359 |
| Under 5 years | 195 |
| 5 to 9 years | 178 |
| 10 to 14 years | 123 |
| 15 to 19 years | 150 |
| 20 to 24 years | 264 |
| 25 to 34 years | 777 |
| 35 to 44 years | 633 |
| 45 to 54 years | 1,019 |
| 55 to 59 years | 560 |
| 60 to 64 years | 424 |
| 65 to 74 years | 556 |
| 75 to 84 years | 339 |
| 85 years and over | 141 |
| Median age (years) | 49.5 |
| Under 18 years | 584 |
| 16 years and over | 4,838 |
| 18 years and over | 4,775 |
| 21 years and over | 4,586 |
| 62 years and over | 1,293 |
| 65 years and over | 1,036 |
| Total population | 5,359 |
| One race | 5,138 |
| White | 3,523 |
| Black or African American | 1,417 |
| American Indian and Alaska Native | 32 |
| Asian | 94 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 72 |
| Two or more races | 221 |
| Citizen, VOTING AGE 18 and over population | 4,714 |
| Male Citizen, VOTING AGE 18 and over population | 2,311 |
| Female Citizen, VOTING AGE 18 and over population | 2,403 |
Social characteristics in NEW CASTLE, DE
| Total households | 2,477 |
| Family households (families) | 1,301 |
| Married-couple family | 923 |
| Male householder, no wife present, family | 124 |
| Female householder, no husband present, family | 254 |
| Nonfamily households | 1,176 |
| Average household size | 2.16 |
| Average family size | 3.00 |
Economic characteristics in NEW CASTLE, DE
| Total households | 2,477 |
| Less than $10,000 | 70 |
| $10,000 to $14,999 | 81 |
| $15,000 to $24,999 | 137 |
| $25,000 to $34,999 | 207 |
| $35,000 to $49,999 | 359 |
| $50,000 to $74,999 | 620 |
| $75,000 to $99,999 | 291 |
| $100,000 to $149,999 | 347 |
| $150,000 to $199,999 | 220 |
| $200,000 or more | 145 |
| Median household income (dollars) | 63,573 |
Housing characteristics in NEW CASTLE, DE
| Total housing units | 2,740 |
| Occupied housing units | 2,477 |
| Vacant housing units | 263 |
| Total housing units | 2,740 |
| 1-unit, detached | 1,219 |
| 1-unit, attached | 764 |
| 2 units | 59 |
| 3 or 4 units | 237 |
| 5 to 9 units | 71 |
| 10 to 19 units | 257 |
| 20 or more units | 133 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 2,740 |
| Built 2014 or later | 21 |
| Built 2010 to 2013 | 73 |
| Built 2000 to 2009 | 319 |
| Built 1990 to 1999 | 216 |
| Built 1980 to 1989 | 113 |
| Built 1970 to 1979 | 347 |
| Built 1960 to 1969 | 374 |
| Built 1950 to 1959 | 330 |
| Built 1940 to 1949 | 99 |
| Built 1939 or earlier | 848 |
| Total housing units | 2,740 |
| 1 room | 56 |
| 2 rooms | 13 |
| 3 rooms | 319 |
| 4 rooms | 285 |
| 5 rooms | 487 |
| 6 rooms | 583 |
| 7 rooms | 520 |
| 8 rooms | 248 |
| 9 rooms or more | 229 |
| Median rooms | 5.9 |
| Total housing units | 2,740 |
| No bedroom | 62 |
| 1 bedroom | 298 |
| 2 bedrooms | 670 |
| 3 bedrooms | 1,327 |
| 4 bedrooms | 254 |
| 5 or more bedrooms | 129 |
| Occupied housing units | 2,477 |
| Owner-occupied | 1,518 |
| Renter-occupied | 959 |
| Average household size of owner-occupied unit | 2.46 |
| Average household size of renter-occupied unit | 1.69 |
| Occupied housing units | 2,477 |
| Moved in 2017 or later | 92 |
| Moved in 2015 to 2016 | 330 |
| Moved in 2010 to 2014 | 705 |
| Moved in 2000 to 2009 | 587 |
| Moved in 1990 to 1999 | 398 |
| Moved in 1989 and earlier | 365 |
| Owner-occupied units | 1,518 |
| Less than $50,000 | 49 |
| $50,000 to $99,999 | 53 |
| $100,000 to $149,999 | 234 |
| $150,000 to $199,999 | 469 |
| $200,000 to $299,999 | 551 |
| $300,000 to $499,999 | 101 |
| $500,000 to $999,999 | 40 |
| $1,000,000 or more | 21 |
| Median (dollars) | 195,400 |
| Owner-occupied units | 1,518 |
| Housing units with a mortgage | 1,162 |
| Housing units without a mortgage | 356 |
| Occupied units paying rent | 948 |
| Less than $500 | 14 |
| $500 to $999 | 273 |
| $1,000 to $1,499 | 533 |
| $1,500 to $1,999 | 122 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 6 |
| $3,000 or more | 0 |
| Median (dollars) | 1,206 |
| No rent paid | 11 |
Data is based on 2018 Census
ZIP Codes for other locations
State for NEW CASTLE
Delaware ZIP CodesOther cities in Delaware